Note: EPA no longer updates this information, but it may be useful as a reference or resource.
Air Screening Data - Trace Atmospheric Gas Analyzer (TAGA)
EPA collected air screening samples from multiple locations across the New
Orleans metropolitan area starting on September 12. The samples were analyzed
for volatile priority pollutants such as benzene, toluene, and xylene, which
are commonly found in gasoline, as well as other industrial solvents. EPA used
two of its Trace Atmospheric Gas Analyzer (TAGA) buses. The TAGA is a self-contained
mobile laboratory capable of continuous, real-time sampling and analysis. It
can detect chemicals in the low parts per billion levels of outdoor air or
emissions from various environmental sources. TAGA monitoring results are only
used for screening and represent the status of the air at the time of sampling.
These screening data were evaluated against the Agency for Toxic Substances
and Disease Registry (ATSDR) air short-term health guidance values in order to provide
an initial assessment of air quality.
The screening results indicated that chemical concentrations in most areas
are below ATSDR guidance values. The low level of volatile pollutants
is not surprising as contaminants may be bound to the sediment. Monitoring
data in the vicinity of the Murphy Oil spill revealed some elevated levels
of benzene and xylene that are associated with the petroleum release. Long-term
exposure (a year or longer) at the levels measured would be required for health
effects to be of concern. On October 2, confirmation sampling of the cleanup
response to Murphy Oil (St. Bernard Parish) resulted in the detection of low
levels of volatile pollutants that were below the ATSDR guidance values.
On October 13th, the TAGA detected benzene at 230 ppb at the point where Williams Boulevard passes underneath US Interstate 10. EPA believes based on its best professional judgement and historical knowledge of TAGA's capability to detect low levels of emissions from vehicular traffic, that the elevated benzene was due to exhaust from vehicles traveling on US Interstate 10 and the recent increase of vehicular traffic in the area. Levels of benzene in the surrounding area were below the Agency for Toxic Substances and Disease Registry's (ATSDR) acute (24 hr), health guidance values.
These initial results represent the beginning of extensive sampling efforts
and do not represent all air conditions throughout the area.
As this is a dynamic situation, general conclusions should not be made regarding
air safety based on results from this snapshot of data.
More information about the TAGA bus
Results for 10/15/05: bus 1
Results for 10/13/05: bus 1
Results for 10/12/05: bus 1
Results for 10/11/05: bus 2
Results for 10/10/05: bus 1
Results for 10/9/05: bus 1
Results for 10/8/05: bus 2
Results for 10/7/05: bus 2
Results for 10/6/05: bus 2
Results for 10/5/05: bus 1
Results for 10/4/05: bus 1
Results for 10/3/05: bus 1
Results for 10/2/05: bus 1
Results for 9/18/05: bus 1
Results for 9/17/05: bus 1
Results for 9/16/05: bus 1
Results for 9/15/05: bus 1
Results for 9/15/05: bus 2
Results for 9/14/05: bus 1
Results for 9/14/05: bus 2
Results for 9/13/05: bus 1
Results for 9/13/05: bus 2
Results for 9/12/05: bus 1
Mobile Monitoring (TAGA-1) Results for 10/15/05
Constituent |
ATSDR |
Sampling Event NOL124 |
Sampling Event NOL126 |
Sampling Event NOL127 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
24.0 |
Intersection of Airline Park Boulevard and US Highway 61; proceeding west |
6.8 |
Intersection of Williams Boulevard and Vintage; Jefferson Parish |
12.5 |
Intersection of Williams Boulevard and Airline Avenue; Jefferson Parish |
Toluene |
1000 ppb |
26.0 |
Intersection of Airline Park Boulevard and US Highway 61; proceeding west |
12.4 |
Intersection of Williams Boulevard and Vintage; Jefferson Parish |
180.0 |
Intersection of Williams Boulevard and Airline Avenue; Jefferson Parish |
Xylene |
1000 ppb |
14.0 |
Intersection of Airline Park Boulevard and US Highway 61; proceeding west |
11.0 |
Intersection of Williams Boulevard and Vintage; Jefferson Parish |
21.0 |
Intersection of Williams Boulevard and Airline Avenue; Jefferson Parish |
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Mobile Monitoring (TAGA-1) Results for 10/13/05
On October 13th, the TAGA detected benzene at 230 ppb at the point where Williams Boulevard passes underneath US Interstate 10. EPA believes based on its best professional judgement and historical knowledge of TAGA's capability to detect low levels of emissions from vehicular traffic, that the elevated benzene was due to exhaust from vehicles traveling on US Interstate 10 and the recent increase of vehicular traffic in the area. Levels of benzene in the surrounding area were below the Agency for Toxic Substances and Disease Registry's (ATSDR) acute (24 hr), health guidance values.
Constituent |
ATSDR |
Sampling Event NOL116 |
Sampling Event NOL117 |
Sampling Event NOL118 |
Sampling Event NOL119 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
10.0 |
Intersection of Riverside Drive and Donelon Drive; Jefferson Parish |
8.2 |
Intersection of Dickory Avenue and Dock Street; Jefferson Parish |
48.0 |
Dickory Street Between Earhart Expressway ramp and Airline Highway; Jefferson Parish |
230.0 |
Williams Boulevard passing under US Interstate 10 |
Toluene |
1000 ppb |
30.0 |
Intersection of Jefferson Highway and Hort Street; Jefferson Parish |
9.0 |
Intersection of Dickory Avenue and Citrus Boulevard; Jefferson Parish |
55.0 |
Dickory Street Between Earhart Expressway ramp and Airline Highway; Jefferson Parish |
560.0 |
Williams Boulevard passing under US Interstate 10 |
Xylene |
1000 ppb |
18.5 |
Intersection of Jefferson Highway and Hort Street; Jefferson Parish |
7.4 |
Intersection of Elmwood Park Boulevard and Pepsi Street; Jefferson Parish |
18.0 |
Dickory Street Between Earhart Expressway ramp and Airline Highway; Jefferson Parish |
220.0 |
Williams Boulevard passing under US Interstate 10 |
Constituent |
ATSDR |
Sampling Event NOL120 |
|
24-h MRL (acute) |
ppbv |
Location |
Benzene |
50 ppb |
29.0 |
Intersection of Veterans Boulevard and Williams Boulevard; Jefferson Parish |
Toluene |
1000 ppb |
94.0 |
Intersection of Williams Boulevard and 25th Street; Jefferson Parish |
Xylene |
1000 ppb |
27.0 |
Intersection of Veterans Boulevard and Williams Boulevard; Jefferson Parish |
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Mobile Monitoring (TAGA-1) Results for 10/12/05
Constituent |
ATSDR |
Sampling Event NOL107 |
Sampling Event NOL108 |
Sampling Event NOL109 |
Sampling Event NOL110 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
7.9 |
Argonne Street and Clearview Parkway; Jefferson Parish |
4.0 |
Intersection of West Esplanade Avenue and Causeway Boulevard; Jefferson Parish |
1.7 |
Intersection of Hammond Highway and Fleur de Lis Drive; Jefferson Parish |
7.8 |
7306 Lakeshore Drive; Jefferson Parish |
Toluene |
1000 ppb |
16.0 |
Argonne Street and Clearview Parkway; Jefferson Parish |
6.8 |
Intersection of West Esplanade Avenue and Causeway Boulevard; Jefferson Parish |
19.5 |
Lakeshore Drive at Shelter No. 1; Jefferson Parish |
12.5 |
7306 Lakeshore Drive; Jefferson Parish |
Xylene |
1000 ppb |
20.0 |
Argonne Street and Clearview Parkway; Jefferson Parish |
7.2 |
Intersection of West Esplanade Avenue and Causeway Boulevard; Jefferson Parish |
21.0 |
Lakeshore Drive at Shelter No. 1; Jefferson Parish |
11.0 |
7306 Lakeshore Drive; Jefferson Parish |
Constituent |
ATSDR |
Sampling Event NOL111 |
Sampling Event NOL112 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
4.0 |
Starting Run on Fleur de Lis Drive; Jefferson Parish |
11.0 |
Intersection of Clearview Parkway at Persimmon Avenue; Jefferson Parish |
Toluene |
1000 ppb |
4.0 |
Intersection of Harrison Avenue and Marshal Foch Street; Jefferson Parish |
11.5 |
Intersection of Clearview Parkway at Persimmon Avenue; Jefferson Parish |
Xylene |
1000 ppb |
3.0 |
Intersection of Harrison Avenue and Canal Boulevard; Jefferson Parish |
11.0 |
Intersection of Clearview Parkway at Persimmon Avenue; Jefferson Parish |
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Mobile Monitoring (TAGA-2) Results for 10/11/05
Constituent |
ATSDR |
Sampling Event NOL100 |
Sampling Event NOL101 |
Sampling Event NOL102 |
Sampling Event NOL103 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
3.9 |
4 miles east of Louisiana Technical College on Earhart |
4.0 |
Intersection of North Peters Street and Saint Louis; French Quarter |
4.9 |
Intersection of Toulouse Street and Decatur Street; French Quarter |
0.8 |
Intersection of Rowley and Perrin Drive; Saint Bernard Parish |
Toluene |
1000 ppb |
50.0 |
4 miles east of Louisiana Technical College on Earhart |
14.0 |
Intersection of Saint Ann and Decatur; French Quarter |
10.0 |
Intersection of Toulouse Street and Decatur Street; French Quarter |
4.4 |
Intersection of Poplar Street and Friscoville Avenue; Saint Bernard Parish |
Xylene |
1000 ppb |
5.9 |
4 miles east of Louisiana Technical College on Earhart |
13.5 |
Intersection of Chartres Street and Nicholls Street; French Quarter |
11.5 |
Intersection of Toulouse Street and Decatur Street; French Quarter |
2.6 |
Intersection of Saint Claude Avenue and Mehle Avenue; Saint Bernard Parish |
Constituent |
ATSDR |
Sampling Event NOL104 |
|
24-h MRL (acute) |
ppbv |
Location |
Benzene |
50 ppb |
3.4 |
Intersection of Jackson Blvd. and LA State Highway 39; Saint Bernard Parish |
Toluene |
1000 ppb |
16.5 |
Intersection of Jacob Drive and Missouri Street; Saint Bernard Parish |
Xylene |
1000 ppb |
13.5 |
Intersection of Jackson Blvd. and LA State Highway 39; Saint Bernard Parish |
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Mobile Monitoring (TAGA-1) Results for 10/10/05
Constituent |
ATSDR |
Sampling Event NOL090 |
Sampling Event NOL091 |
Sampling Event NOL092 |
Sampling Event NOL093 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
1.8 |
2 miles northwest of US Interstate 10 Exit 254 on Highway 11 |
41.0 |
US Highway 11 between Carey Street and Maine Avenue; Saint Tammany Parish |
2.0 |
LA State Highway 41 merging with US Highway 11 South; Saint Tammany Parish |
7.8 |
LA State Highway 1091 between Rosalie Drive and Tidewater Drive; Saint Tammany Parish |
Toluene |
1000 ppb |
4.7 |
2 miles northwest of US Interstate 10 Exit 254 on Highway 11 |
145.0 |
US Highway 11 between Carey Street and Maine Avenue; Saint Tammany Parish |
7.2 |
US Highway 11 South betweenCedar Lake and Oak Alley Drive; Saint Tammany Parish |
22.0 |
LA State Highway 1091 between Rosalie Drive and Tidewater Drive; Saint Tammany Parish |
Xylene |
1000 ppb |
4.3 |
2 miles northwest of US Interstate 10 Exit 254 on Highway 11 |
130.0 |
US Highway 11 between Carey Street and Maine Avenue; Saint Tammany Parish |
6.6 |
US Highway 11 South betweenCedar Lake and Oak Alley Drive; Saint Tammany Parish |
21.0 |
LA State Highway 1091 between Rosalie Drive and Tidewater Drive; Saint Tammany Parish |
Constituent |
ATSDR |
Sampling Event NOL094 |
Sampling Event NOL095 |
Sampling Event NOL096 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
15.5 |
Intersection of Gause Boulevard and Eastridge Drive; Saint Tammany Parish |
13.5 |
Intersection of Bayou Liberty Road and Baldwin Drive; Saint Tammany Paish |
15.0 |
Gas Station on Ponchartrain Street near Third Street; Saint Tammany Parish |
Toluene |
1000 ppb |
28.0 |
Intersection of Gause Boulevard and Eastridge Drive; Saint Tammany Parish |
33.0 |
Intersection of Bayou Liberty Road and Baldwin Drive; Saint Tammany Paish |
94.0 |
Gas Station on Ponchartrain Street near Third Street; Saint Tammany Parish |
Xylene |
1000 ppb |
28.0 |
Intersection of Gause Boulevard and Eastridge Drive; Saint Tammany Parish |
33.0 |
Intersection of Bayou Liberty Road and Baldwin Drive; Saint Tammany Paish |
70.0 |
Gas Station on Ponchartrain Street near Third Street; Saint Tammany Parish |
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Mobile Monitoring (TAGA-1) Results for 10/9/05
Constituent |
ATSDR |
Sampling Event NOL081 |
Sampling Event NOL082 |
Sampling Event NOL083 |
Sampling Event NOL084 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
31.0 |
7 miles east of Luling on US Highway 61 |
2.5 |
LA State Highway 18 passing Post Street; Saint Charles Parish |
4.0 |
16709 LA State Highway 18 |
3.4 |
LA State Highway 18 at L Street; Saint Charles Parish |
Toluene |
1000 ppb |
115.0 |
7 miles east of Luling on US Highway 61 |
4.7 |
LA State Highway 18 passing Post Street; Saint Charles Parish |
4.5 |
16709 LA State Highway 18 |
4.9 |
LA State Highway 18 at L Street; Saint Charles Parish |
Xylene |
1000 ppb |
113.0 |
7 miles east of Luling on US Highway 61 |
7.2 |
LA State Highway 18 passing Post Street; Saint Charles Parish |
3.9 |
16709 LA State Highway 18 |
6.6 |
LA State Highway 18 at L Street; Saint Charles Parish |
Constituent |
ATSDR |
Sampling Event NOL085 |
Sampling Event NOL086 |
Sampling Event NOL087 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
3.3 |
16708 LA State Highway 18; Saint Charles Parish |
15.5 |
LA State Highway 48 at Good Hope Road; Saint Charles Parish |
8.4 |
LA State Highway 628 at Good Hope Road; Saint Charles Parish |
Toluene |
1000 ppb |
23.0 |
16708 LA State Highway 18; Saint Charles Parish |
45.0 |
LA State Highway 48 at Good Hope Road; Saint Charles Parish |
3.5 |
LA State Highway 628 at Gate 44; Saint Charles Parish |
Xylene |
1000 ppb |
9.6 |
16708 LA State Highway 18; Saint Charles Parish |
47.0 |
LA State Highway 48 at Good Hope Road; Saint Charles Parish |
2.9 |
Evangeline Road at Four J Land; Saint Charles Parish |
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Mobile Monitoring (TAGA-2) Results for 10/8/05
Constituent |
ATSDR |
Sampling Event NOL077 |
Sampling Event NOL078 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
3.7 |
LA State Highway 23 near the Oronite Oak Point plant |
4.4 |
LA State Highway 3017 between Bayou Road and Peters Road; Plaquemines Parish |
Toluene |
1000 ppb |
17.0 |
LA State Highway 23 near Overseas Avenue |
14.5 |
LA State Highway 3017 near 2842 Peters Road; Open burning on right; Plaquemines Parish |
Xylene |
1000 ppb |
35.0 |
LA State Highway 23 near Overseas Avenue |
16.0 |
LA State Highway 3017 near Concord Road; Plaquemines Parish |
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Mobile Monitoring (TAGA-2) Results for 10/7/05
Constituent |
ATSDR |
Sampling Event KAT088 |
Sampling Event KAT089 |
Sampling Event KAT090 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
14.5 |
Near intersection of 406 and Delacroix Road; Orleans Parish |
6.0 |
River Road passing over Oliver Road; Orleans Parish |
3.0 |
On the Belle Chase Ferry; Orleans Parish |
Toluene |
1000 ppb |
8.8 |
Near intersection of 406 and Delacroix Road; Orleans Parish |
8.6 |
State Highway 23 near Iota Street; Orleans Parish |
5.0 |
On the Belle Chase Ferry; Orleans Parish |
Xylene |
1000 ppb |
4.5 |
Near intersection of 406 and Delacroix Road; Orleans Parish |
4.0 |
State Highway 23 near Iota Street; Orleans Parish |
5.8 |
On the Belle Chase Ferry; Orleans Parish |
Constituent |
ATSDR |
Sampling Event KAT091 |
Sampling Event KAT092 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
4.9 |
Intersection of LA State Highway 39 and LA State Highway 3139; Orleans Parish |
9.0 |
LA State Highway 23 near State Highway 406; Orleans Parish |
Toluene |
1000 ppb |
5.4 |
Intersection of LA State Highway 39 and LA State Highway 3139; Orleans Parish |
11.5 |
LA State Highway 23 near State Highway 406; Orleans Parish |
Xylene |
1000 ppb |
4.2 |
Intersection of LA State Highway 39 and LA State Highway 3139; Orleans Parish |
7.8 |
LA State Highway 23 near State Highway 406; Orleans Parish |
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Mobile Monitoring (TAGA-2) Results for 10/6/05
Constituent |
ATSDR |
Sampling Event KAT077 |
Sampling Event KAT078 |
Sampling Event KAT079 |
Sampling Event KAT080 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
6.6 |
Near Intersection of Loyola Avenue and Gravier Street - French Quarter |
8.0 |
Intersection of St Claude Avenue and Clouet Street - French Quarter/Ninth Ward |
3.2 |
Intersection of Saint Claude Street and Poland Avenue - Ninth Ward |
4.4 |
Intersection of Almonaster Avenue and North Galvez Street -- Ninth Ward |
Toluene |
1000 ppb |
9.4 |
Near Intersection of Loyola Avenue and Gravier Street - French Quarter |
33.0 |
Intersection of St Claude Avenue and Clouet Street - French Quarter/Ninth Ward |
3.2 |
Intersection of North Dorgenois Street and Mazant Street - Ninth Ward |
11.0 |
Intersection of Almonaster Avenue and North Galvez Street -- Ninth Ward |
Xylene |
1000 ppb |
5.4 |
Near Intersection of Loyola Avenue and Gravier Street - French Quarter |
19.0 |
Intersection of St Claude Avenue and Clouet Street - French Quarter/Ninth Ward |
0.6 |
Intersection of Saint Claude Street and Poland Avenue - Ninth Ward |
8.3 |
Intersection of Almonaster Avenue and North Galvez Street -- Ninth Ward |
Constituent |
ATSDR |
Sampling Event KAT081 |
Sampling Event KAT082 |
Sampling Event KAT083 |
Sampling Event KAT084 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
10.5 |
Intersection of Canal and North Rampart - Business District |
11.0 |
Intersection of Amelia Street and Saint Charles Avenue - Garden District |
2.6 |
Intersection of Amelia and Magazine Street - Garden District |
2.8 |
Intersection of East Avenue and Jefferson Avenue -- Garden District |
Toluene |
1000 ppb |
31.0 |
Intersection of Canal and North Rampart - Business District |
10.5 |
Intersection of Saint Charles Avenue and Lee Circle - Garden District |
4.6 |
Intersection of Jackson Avenue and Magazine Street - Garden District |
3.4 |
Intersection of East Avenue and Jefferson Avenue -- Garden District |
Xylene |
1000 ppb |
26.0 |
Intersection of Canal and North Rampart - Business District |
6.0 |
Intersection of Saint Charles Avenue and Lee Circle - Garden District |
2.1 |
Intersection of State Street and Magazine Street - Garden District |
1.3 |
Intersection of Tchoupitoulas Street and Napoleon Avenue -- Garden District |
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Mobile Monitoring (TAGA-1) Results for 10/5/05
On October 5th, TAGA detected elevated levels of benzene in an industrial area along LA State Highway 18 in St. Charles Parish. In two locations, benzene levels exceeded the Agency for Toxic Substance and Disease Registry's (ATSDR) acute (24 hr), health guidance values. The Louisiana Department of Environmental Quality (LA DEQ) is conducting a follow-up investigation in the area.
Constituent |
ATSDR |
Sampling Event KAT066 |
Sampling Event KAT067 |
Sampling Event KAT068 |
Sampling Event KAT069 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
115.0 |
Near Intersection of LA State Highway 3160 and LA State Highway 18 - St Charles Parish |
4.4 |
Intersection of LA State Highway 18 and LA State Highway 3141 - St Charles Parish |
165.0 |
Near 16251 LA State Highway 18 - St Charles Parish |
5.0 |
Intersection of LA State Highway 18 and West 4th Street |
Toluene |
1000 ppb |
14.5 |
Intersection of Rosedon Place and LA State Highway 18 - St Charles Parish |
3.8 |
Intersection of LA State Highway 3141 and LA State Highway 3127 - St Charles Parish |
10.5 |
Near 16251 LA State Highway 18 - St Charles Parish |
4.5 |
Intersection of LA State Highway 18 and Duck Lane |
Xylene |
1000 ppb |
11.0 |
Intersection of Rosedon Place and LA State Highway 18 - St Charles Parish |
1.7 |
Intersection of LA State Highway 18 and LA State Highway 3141 - St Charles Parish |
3.2 |
Near 16251 LA State Highway 18 - St Charles Parish |
1.9 |
Intersection of LA State Highway 18 and Duck Lane |
Constituent |
ATSDR |
Sampling Event KAT070 |
Sampling Event KAT071 |
Sampling Event KAT072 |
Sampling Event KAT073 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
6.8 |
Stop under 3213 North on LA State Highway 3213 - St John the Baptist Parish |
18.0 |
Intersection of LA State Highway 44 and West 6th Street - St John the Baptist Parish |
41.0 |
Intersection of LA State Highway 44 and LA State Highway 3224 - St John the Baptist Parish |
20.5 |
Intersection of LA State Highway 44 and US Highway 61 |
Toluene |
1000 ppb |
21.0 |
Stop under 3213 North on LA State Highway 3213 - St John the Baptist Parish |
34.0 |
Intersection of LA State Highway 44 and West 6th Street - St John the Baptist Parish |
53.0 |
Intersection of LA State Highway 44 and LA State Highway 3224 - St John the Baptist Parish |
63.0 |
Intersection of US Highway 61 and Ormond Boulevard |
Xylene |
1000 ppb |
13.5 |
Stop under 3213 North on LA State Highway 3213 - St John the Baptist Parish |
27.0 |
Intersection of LA State Highway 44 and West 6th Street - St John the Baptist Parish |
47.0 |
Intersection of LA State Highway 44 and LA State Highway 3224 - St John the Baptist Parish |
59.0 |
Intersection of US Highway 61 and Ormond Boulevard |
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Mobile Monitoring (TAGA-1) Results for 10/4/05
Constituent |
ATSDR |
Sampling Event KAT055 |
Sampling Event KAT056 |
Sampling Event KAT057 |
Sampling Event KAT058 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
1.8 |
Background Sample at Louisiana Technical College |
37.0 |
Intersection of Longview Drive and River Road (in front of gas station) |
5.6 |
Intersection of Apple Street and River Road |
7.8 |
State Route 3127 turning on to LA State Highway 628 |
Toluene |
1000 ppb |
3.2 |
Background Sample at Louisiana Technical College |
53.0 |
Intersection of Longview Drive and River Road (in front of gas station) |
7.4 |
Intersection of Apple Street and River Road |
14.5 |
State Route 3127 turning on to LA State Highway 628 |
Xylene |
1000 ppb |
0.8 |
Background Sample at Louisiana Technical College |
13.5 |
Intersection of Longview Drive and River Road (in front of gas station) |
7.6 |
Intersection of Apple Street and River Road |
13.0 |
State Route 3127 turning on to LA State Highway 628 |
Constituent |
ATSDR |
Sampling Event KAT059 |
Sampling Event KAT060 |
Sampling Event KAT061 |
Sampling Event KAT062 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
9.2 |
Traffic Light near intersection of LA State Highway 48 and US Highway 61 |
33.0 |
In front of Shell Refinery on Highway 61 |
3.3 |
Intersection of Barton Avenue and LA State Highway 18 |
8.0 |
Intersection of River Road and LA State Highway 18 |
Toluene |
1000 ppb |
10.5 |
Traffic Light near intersection of LA State Highway 48 and US Highway 61 |
11.5 |
In front of Shell Refinery on Highway 61 |
7.0 |
Intersection of Barton Avenue and LA State Highway 18 |
10.5 |
Intersection of River Road and LA State Highway 18 |
Xylene |
1000 ppb |
5.2 |
Parking Lot near intersection of LA State Highway 48 and US Highway 61 |
4.7 |
Intersection of Ormond Boulevard and US Highway 61 |
4.3 |
Intersection of Barton Avenue and LA State Highway 18 |
6.2 |
Intersection of River Road and LA State Highway 18 |
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Mobile Monitoring (TAGA-1) Results for 10/3/05
Constituent |
ATSDR |
Sampling Event KAT047 |
Sampling Event KAT048 |
Sampling Event KAT049 |
Sampling Event KAT050 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
2.9 |
Background Sample at Louisiana Technical College |
7.0 |
South West entrance of NASA on Gentilly Road |
3.2 |
Intersection of Industrial Parkway and US Highway 90 |
1.5 |
NASA Gate 6B |
Toluene |
1000 ppb |
5.0 |
Background Sample at Louisiana Technical College |
660.0 |
Air Products Gate 4 turning onto Industrial Parkway |
115.0 |
Intersection of Industrial Parkway and Intercosal Drive |
3.0 |
NASA Gate 6B |
Xylene |
1000 ppb |
1.3 |
Background Sample at Louisiana Technical College |
12.5 |
Air Products Gate 4 turning onto Industrial Parkway |
10.5 |
Intersection of Industrial Parkway and US Highway 90 |
0.4 |
NASA Gate 6B |
Constituent |
ATSDR |
Sampling Event KAT051 |
Sampling Event KAT052 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
3.6 |
Intersection of Almonaster Avenue and Jourdan Avenue |
2.8 |
Jourdan Avenue near Hayne Boulevard |
Toluene |
1000 ppb |
7.5 |
Intersection of Almonaster Avenue and Jourdan Avenue |
10.0 |
Jourdan Avenue near Hayne Boulevard |
Xylene |
1000 ppb |
0.9 |
Intersection of Almonaster Avenue and Jourdan Avenue |
2.2 |
Jourdan Avenue passing under State Route 10 |
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Mobile Monitoring (TAGA-1) Results for 10/2/05
On October 2, confirmation sampling of the cleanup response to Murphy Oil (St. Bernard Parish) resulted in the detection of low levels of volatile pollutants that were below the ATSDR health standards of concern.
Constituent |
ATSDR |
Sampling Event KAT038 |
Sampling Event KAT039 |
Sampling Event KAT040 |
Sampling Event KAT041 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
3.6 |
Background Sample at Louisiana Technical College |
4.4 |
Intersection of Mary Ann Drive and Highway 46 |
8.9 |
Intersection of Legend Drive and Highway 39 |
5.7 |
Intersection of Munster Blvd and Highway 39 |
Toluene |
1000 ppb |
5.0 |
Background Sample at Louisiana Technical College |
8.0 |
Intersection of 13th Street and Highway 46 |
18.5 |
Intersection of Munster Blvd and Highway 39 |
9.0 |
Intersection of Jacob Drive & Highway 46 |
Xylene |
1000 ppb |
1.0 |
Background Sample at Louisiana Technical College |
2.1 |
Intersection of Paris and Highway 46 |
1.7 |
Intersection of Legend Drive and Highway 39 |
7.4 |
Intersection of Jacob Drive & Highway 46 |
Constituent |
ATSDR |
Sampling Event KAT043 |
Sampling Event KAT044 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
6.0 |
Intersection of Jacob Drive and East Judge Perez |
3.8 |
Passing Solidelle and turning left onto Highway 39 |
Toluene |
1000 ppb |
14.5 |
Intersection of Jacob Drive and East Judge Perez |
10.5 |
Intersection of Paul Drive and Highway 39 |
Xylene |
1000 ppb |
16.5 |
Intersection of Highway 46 and Jacob Drive |
2.0 |
Intersection of Paris and Law |
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Mobile Monitoring (TAGA-1) Results for 9/18/05
Constituent |
ATSDR |
Sampling Event NOL064 |
Sampling Event NOL065 |
Sampling Event NOL066 |
Sampling Event NOL067 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
7.0 |
Intersection of Arch Bishop Hannan and Route 46 |
4.5 |
Bolbe Drive turning left onto Migistrate Street |
2.8 |
Intersection of Rosetta and Highway 46 |
1.6 |
Intersection of Paris Road and Highway 39 |
Toluene |
1000 ppb |
28.0 |
Intersection of East Saint Bernard Highway and Walkers Lane |
12.5 |
Bolbe Drive turning left onto Migistrate Street |
49.0 |
Laplace Street before turning left onto East Prosper Street, passed a machine shop at approximately Laplace Street and Girod |
9.0 |
On Paris Road crossing Highway 39 before turning right onto Highway 39 |
Xylene |
1000 ppb |
27.0 |
Intersection of East Saint Bernard Highway andWalkers Lane |
12.0 |
Bolbe Drive turning left onto Migistrate Street |
13.5 |
Intersection of Rosetta and Highway 46 |
1.2 |
Intersection of Paris Road and Highway 39 |
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Mobile Monitoring (TAGA-1) Results for 9/17/05
Constituent |
ATSDR |
Sampling Event NOL055 |
Sampling Event NOL056 |
Sampling Event NOL057 |
Sampling Event NOL058 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
2.5 |
Stationary monitoring at Louisiana Technical College |
7.8 |
Tullis Drive turning left onto Woodland Drive |
8.6 |
Tall Timbers Drive before Silver Maple Court |
4.2 |
MacArthur Boulevard turning left onto Eaton Street |
Toluene |
1000 ppb |
11.5 |
Stationary monitoring at Louisiana Technical College |
21.0 |
Tullis Drive turning left onto Woodland Drive |
15.5 |
Silver Maple Court bearing right onto Tall Timbers Drive |
14.0 |
Berkley Drive turning Right onto Kabel Drive |
Xylene |
1000 ppb |
1.2 |
Stationary monitoring at Louisiana Technical College |
14.0 |
Tullis Drive turning left onto Woodland Drive |
11.5 |
Tall Timbers Drive before Silver Maple Court |
8.6 |
Berkley Drive turning Right onto Kabel Drive |
Constituent |
ATSDR |
Sampling Event NOL059 |
Sampling Event NOL060 |
Sampling Event NOL061 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
4.7 |
Saint Nick Drive turning right onto General Meyer Avenue |
4.7 |
End of Sullen Place, bearing left before Joycelyn Drive |
4.0 |
End of Tedlar Bag Sampling |
Toluene |
1000 ppb |
18.0 |
Saint Nick Drive turning right onto General Meyer Avenue |
19.5 |
Fields Street before Medlock Street |
26.0 |
General Meyer Avenue turning right onto Lancaster Street |
Xylene |
1000 ppb |
4.2 |
Saint Nick Drive turning right onto General Meyer Avenue |
6.0 |
Joycelyn Drive before turning left onto Fields Street |
13.5 |
General Meyer Avenue turning right onto Lancaster Street |
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Mobile Monitoring (TAGA-1) Results for 9/16/05
Constituent |
ATSDR |
Sampling Event NOL047 |
Sampling Event NOL048 |
Sampling Event NOL049 |
Sampling Event NOL050 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
2.3 |
Louisiana Technical College (background) |
3.5 |
L.B. Landry by Thayer |
3.4 |
Newton Intersection turning right onto Nunez |
2.7 |
Intersection of Shriley and Lawrence Streets |
Toluene |
1000 ppb |
5.0 |
Louisiana Technical College (background) |
15.0 |
L.B.Landry by Newton |
17.0 |
Starting run on Opelousas Avenue |
15.0 |
Intersection of Shirley passing Socrates |
Xylene |
1000 ppb |
1.7 |
Louisiana Technical College (background) |
2.5 |
L.B. Landry by Evelina |
1.3 |
Opelousas Avenue Intersection turning right onto Newton |
2.4 |
Intersection of Behrman turning right onto General Meyer Avenue |
Constituent |
ATSDR |
Sampling Event NOL051 |
Sampling Event NOL052 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
15.0 |
Wall Boulevard before turning left onto Pace Boulevard |
4.7 |
Holiday Drive passing Fiesta |
Toluene |
1000 ppb |
25.0 |
Wall Boulevard before turning left onto Pace Boulevard |
23.0 |
Garden Oaks Drive before the intersection of Behrman Highway |
Xylene |
1000 ppb |
6.2 |
Wall Boulevard before turning left onto Pace Boulevard |
3.3 |
Holiday Drive passing Fiesta |
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Mobile Monitoring (TAGA-1) Results for 9/15/05
Constituent |
ATSDR |
Sampling Event NOL038 |
Sampling Event NOL039 |
Sampling Event NOL040 |
Sampling Event NOL041 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
2.7 |
Louisiana Technical College (background) |
2.3 |
Intersection of West Bank Expressway and General DeGaulle |
4.8 |
Intersection of General Meyer Avenue and Merrill |
2.7 |
Intersection of General Meyer Avenue and Blair |
Toluene |
1000 ppb |
13.0 |
Louisiana Technical College (background) |
17.0 |
Intersection of Opelousas Avenue and Hendee |
11.0 |
Intersection of Richard Road and Socrates |
19.0 |
Intersection of General Meyer Avenue and Blair |
Xylene |
1000 ppb |
1.4 |
Louisiana Technical College (background) |
3.3 |
Intersection of West Bank Expressway and General DeGaulle |
6.2 |
Intersection of General Meyer Avenue and Merrill |
7.4 |
Intersection of Nolan and Bennett |
Constituent |
ATSDR |
Sampling Event NOL042 |
Sampling Event NOL043 |
Sampling Event NOL044 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
15.3 |
Intersection of Tullis and Woodland near Cypress Grove Court |
2.9 |
Intersection of General DeGaulle (LA 428) and L.B. Landry Avenue |
2.2 |
Intersection of Newton Street and Verret |
Toluene |
1000 ppb |
62.0 |
Intersection of Tullis and Woodland near Cypress Grove Court |
15.1 |
Holmes Boulevard near Bruce Avenue |
9.0 |
Intersection of Newton Street and Verret |
Xylene |
1000 ppb |
54.0 |
Intersection of Tullis and Woodland near Cypress Grove Court |
9.0 |
Terry Parkway passing under Route 90 overpass |
3.7 |
Highway 90 Exit and General DeGaulle Drive |
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Mobile Monitoring (TAGA-2) Results for 9/15/05
Constituent |
ATSDR |
Sampling Event KAT024 |
Sampling Event KAT025 |
Sampling Event KAT026 |
Sampling Event KAT027 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
6.0 |
Louisiana Technical College (background) |
18.0 |
Intersection of Cleveland Street and South Johnson Street |
8.2 |
Intersection of LaSalle Street and Tulane Avenue, heading northeast on Tulane Avenue |
8.0 |
Intersection of Crozat Street and Iberville Street |
Toluene |
1000 ppb |
7.7 |
Louisiana Technical College (background) |
92.0 |
Intersection of Cleveland Street and South Johnson Street |
3.0 |
Intersection of Poydras Street and South Johnson Street |
12.8 |
Intersection of Iberville Street and Canal Street |
Xylene |
1000 ppb |
2.3 |
Louisiana Technical College (background) |
47.0 |
Intersection of Cleveland Street and South Johnson Street |
3.8 |
Intersection of North Roman Street and North Galvez Street |
4.4 |
Intersection of South Galvez Street and Tulane Avenue |
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Mobile Monitoring (TAGA-1) Results for 9/14/05
Constituent |
ATSDR |
Sampling Event NOL030 |
Sampling Event NOL031 |
Sampling Event NOL032 |
Sampling Event NOLO033 |
Sampling Event NOL034 |
Sampling Event NOL035 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
4.2 |
Intersection of Clerview and Jefferson HighwayEast |
2.8 |
Intersection of Garfield and Nashville Avenue |
2.4 |
Intersection of Louisianina Avenue and Laurel |
2.0 |
Intersection of Tchoupitoulas and Orange |
3.5 |
Intersection of Tchoupitoulas and Poydras |
3.4 |
Canal Street |
Toluene |
1000 ppb |
16.0 |
Intersection of Tchoupitoulas Road and Nashville Avenue |
12.0 |
Intersection of Magazine and Nashville Avenue |
26.0 |
Intersection of Louisianina Avenue and Magazine |
19.0 |
Intersection of Tchoupitoulas and Washington Avenue |
29.0 |
Intersection of Carondelet and Poydras |
17.0 |
Canal Street heading back to Louisiana Technical College |
Xylene |
1000 ppb |
9.8 |
Clearview just before Jefferson Highway East |
3.7 |
Napolion Avenue just past Chestnut |
5.2 |
Intersection of Louisianina Avenue and Laurel |
1.2 |
Intersection of Tchoupitoulas and Orange |
5.6 |
Intersection of Carondelet and Poydras |
11.0 |
Canal Street |
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Mobile Monitoring (TAGA-2) Results for 9/14/05
Constituent |
ATSDR |
Sampling Event KAT018 |
Sampling Event KAT019 |
Sampling Event KAT020 |
Sampling Event KAT021 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
8.0 |
Intersection of River Road and Huey P. Long Bridge |
11.0 |
Barataria Boulevard between Jessie Street and Route 18 |
8.5 |
Intersection of Weidman Street and Monroe Street |
14.0 |
Intersection of North Rampart and Canal Street |
Toluene |
1000 ppb |
13.0 |
Intersection of 4th Street and Avenue B |
26.0 |
Barataria Boulevard between Jessie Street and Route 18 |
14.5 |
Intersection of Weidman Street and Monroe Street |
68.0 |
Intersection of North Rampart and Canal Street |
Xylene |
1000 ppb |
5.8 |
Intersection of 2nd Street and Avenue B |
16.0 |
Barataria Boulevard between Jessie Street and Route 18 |
7.8 |
Intersection of Gov. Hall Street and Ocean Avenue |
27.0 |
Intersection of North Rampart and Canal Street |
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Mobile Monitoring (TAGA-1) Results for 9/13/05
Constituent |
ATSDR |
Sampling Event NOL020 |
Sampling Event NOL021 |
Sampling Event NOL022 |
Sampling Event NOL023 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
2.8 |
Intersection of Clearview Avenue and Mounes Street |
4.6 |
Bus Depot |
2.6 |
Route 10 just prior to Route 90 East Ramp |
1.5 |
Chef Menteur Boulevard turning right onto Old Gentilly Road |
Toluene |
1000 ppb |
10.9 |
Intersection of Clearview Avenue and South Carrolton Avenue |
18.5 |
Bus Depot |
11.5 |
Ramp off Route 10 to Route 90 East |
11.0 |
Old Gentilly Road turning right onto Route 90 |
Xylene |
1000 ppb |
4.4 |
Jefferson Highway Route 90 |
14.5 |
Bus Depot |
3.1 |
Route 10 just prior to Route 90 East Ramp |
1.2 |
Chef Menteur Boulevard turning right onto Old Gentilly Road |
Constituent |
ATSDR |
Sampling Event NOL024 |
Sampling Event NOL025 |
Sampling Event NOL026 |
Sampling Event NOL027 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
5.1 |
Route 47 South |
2.5 |
Route 47 South |
170.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
6.2 |
Crossing Saint Peters and North Rampart and taking left onto Canal Street |
Toluene |
1000 ppb |
13.5 |
Route 47 South |
11.5 |
Turning from Walker onto Judge Perez Road |
790.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
12.5 |
Saint Charles Avenue bearing right to Leake Avenue |
Xylene |
1000 ppb |
9.1 |
Route 47 South |
18.0 |
Route 47 South ner intersection of Paris Road |
660.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
17.5 |
Crossing Saint Peters and North Rampart and taking left onto Canal Street |
Benzene exeeded the acute (short-term - measured in days) at one location
behind Murphy Oil on Judge Perez Drive. The data below is a summary of the
highest quantified concentrations detected over a 40-45 minute trip in the
TAGA.
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Mobile Monitoring (TAGA-2) Results for 9/13/05
Constituent |
ATSDR |
Sampling Event KAT011 |
Sampling Event KAT012 |
Sampling Event KAT013 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
8.5 |
Oak Lawn and Veterans Boulevard |
11.0 |
Glennwood Drive and Fairmont Drive |
21.0 |
Avenue A and Hector |
Toluene |
1000 ppb |
17.0 |
Oak Lawn and Veterans Boulevard |
16.0 |
Derbigny Stre and Estes Street |
22.0 |
Avenue A and Hector |
Xylene |
1000 ppb |
3.6 |
Oak Lawn and Veterans Boulevard |
7.4 |
Derbigny Stre and Estes Street |
11.5 |
Mulberry Drive and Metaire Road |
Constituent |
ATSDR |
Sampling Event KAT014 |
Sampling Event KAT015 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
16.5 |
Duplessis Street and Park Street |
9.0 |
East Maple Ridge Drive and Maple Ridge Oak |
Toluene |
1000 ppb |
17.0 |
Ogden and Pontchartain Boulevard |
27.0 |
Maple Ridge Oak and Oleander Street |
Xylene |
1000 ppb |
8.2 |
Duplessis Street and Park Street |
1.2 |
Atherton Drive and Colapissa Street |
No measured data exceeded ATSDR 24-hour acute benchmarks. The data below is
a summary of the highest quantified concentrations detected over a 40-45 minute
trip in the TAGA.
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Mobile Monitoring (TAGA) Results for 9/12/05
Constituent |
ATSDR |
Sampling Event NOL012 |
Sampling Event NOL013 |
Sampling Event NOL014 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
4.5 |
At the gate of Louisiana Technical College turning onto Airheart |
ND |
Crossing Drawbridge after intersection of LA46 and Bartholamew |
88.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
Toluene |
1000 ppb |
82.0 |
Airheart crossing Mississippi River |
ND |
Crossing Drawbridge after intersection of LA46 and Bartholamew |
550.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
Xylene |
1000 ppb |
15.0 |
Airheart crossing Huey Long Bridge |
6.0 |
Crossing Drawbridge after intersection of LA46 and Bartholamew |
660.0 |
Murphy Oil Refinery (Judge Perez and Jacob) |
Constituent |
ATSDR |
Sampling Event NOL015 |
Sampling Event NOL016 |
Sampling Event NOL017 |
|
24-h MRL (acute) |
ppbv |
Location |
ppbv |
Location |
ppbv |
Location |
Benzene |
50 ppb |
127.0 |
Murphy Oil Refinery (U-Turn on Judge Perez) |
96.0 |
Murphy Oil Refinery (start of midpoint of plume) |
9.8 |
Convention Center Drive |
Toluene |
1000 ppb |
800.0 |
Murphy Oil Refinery (U-Turn on Judge Perez) |
720.0 |
Murphy Oil Refinery (start of midpoint of plume) |
17.4 |
Convention Center Drive |
Xylene |
1000 ppb |
1100.0 |
Murphy Oil Refinery (U-Turn on Judge Perez) |
1000.0 |
Murphy Oil Refinery (start of midpoint of plume) |
9.0 |
Convention Center Drive |
Benzene and Xylene exeeded both the acute (short-term - measured in days)
screening levels. The data below is a summary of the highest quantified concentrations
detected over a 40-45 minute trip in the TAGA. The data results above are from
the area around Murphy Oil and the associated oil spill.
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