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Toxicity Data & ESLs
The list of compounds routinely analyzed in this study are listed below. The toxicological data for these compounds was obtained from a variety of sources, including , but not limited to the Agency for Toxic Substances and Disease Registry( ASTDR), the Environmental Protection Agency, (EPA ), as well as the National Institute for Occupational Safety and Health (NIOSH) .Information on Effects Screening Levels provided courtesy of the Texas Comission on Environmental Quality (TCEQ) , formerly the Texas Natural Resource Conservation Comission (TNRCC) . The ESLs data is current as of 7/19/2000. No other information about the validity or accuracy of this data is either expressed or implied.
Effects Screening Levels List Provided by
Effects Screening Levels (ESLs) are used to evaluate the potential for
effects to occur as a result of exposure to concentrations of constituents
in the air. ESLs are based on data concerning health effects, odor nuisance
potential, effects with respect to vegetation, and corrosion effects. They are not ambient air standards. If predicted or measured airborne
levels of a constituent do not exceed the screening level, adverse
health or welfare effects would not be expected to result. If ambient
levels of constituents in air exceed the screening levels, it does
not necessarily indicate a problem, but rather, triggers a more in-depth
review.
In this list, short- and long-term ESLs are included. "Short-term"
generally indicates a one-hour averaging period. Exceptions are noted
parenthetically after a constituent name. "Long-term" indicates
an annual averaging period. An asterisk immediately after the constituent
name signifies the ESL is currently under review, and thus, subject to
change. A double asterisk after the constituent name indicates the constituent
has disaster potential.
The ESL list can be downloaded as a self-extracting file entitled ESL2000.EXE, which contains an introductory memorandum, the changes to the list since the last update, and the ESL list itself, in spreadsheet form (xls). You can access help on downloading and using self-extracting files. Hard copies of the ESL list are available by contacting TCEQ, Toxicology and Risk Assessment at 512/239-1795. Technical questions regarding the ESL list, or requests for alternate file formats, may be addressed to Zarena Post at 512/239-1332 or Jong-Song Lee at 512/239-1790.
Electronic copies of previous ESL lists are also available for 1994, 1995, 1996, and 1997.
Sign Up for ESL-Related Announcements
To join the ESL Announcement List, please send an e-mail to:
join-esl@listserv.tceq.state.tx.us.
Do not put any information in either the subject or message body. You
will receive an automatic acknowledgment e-mail informing you that your
request has been received. Once the list administrator has admitted your
email address to the list, you will receive a "welcome" document. ( Data provided courtesy of Texas
Comission on Environmental Quality, TCEQ , formerly the Texas Natural
Resourse Conservation Comission, TNRCC)
Important !!
This data is provided as a public service only. The ambient air samples taken as a result of this project will serve to provide citizens a general indication of the air quality at their residences (or wherever samples are taken). It should be noted that citizens are taking short duration (three minute) samples which provide limited information on air quality. Therefore, no direct correlation can be made between the sample concentrations determined in this study and the toxicity data provided below.
HGCAMP Analytical Data
Compound Analyzed | Normal Reporting Limits for sample reporting in HGCAMP study * | TNRCC Effects Screening Levels (ESLs) reported in ug/m3 and ppb(7/19/2000) This data is taken from the TNRCC's ESLs spreadsheet current as of 7/19/2000. No other information about the validity or accuracy of this data is either expressed or implied. |
|||||
* reporting limits - the minimum value or concentration of a analyte that will be reported. | |||||||
Substance or Compound Analyzed | * ppbv - parts per billion by volume | CAS N0. | Short-term ESL ug/m3 |
ppb |
Long-term ESL ug/m3
|
ppb | |
1,1,1-trichloroethane | 0.5 ppbv | 71-55-6 | 10800 | 2000 | 1080 | 200 | |
1,1,2,2-tetrachloroethane | 0.5 ppbv | 79-34-5 | 70 | 10 | 7 | 1 | |
1,1,2-trichloro-1,2,2-trifluoroethane | 0.5 ppbv | 76-13-1 | 38000 | 5000 | 3800 | 500 | |
1,1,2-trichloroethane | 0.5 ppbv | 79-00-5 | 550 | 100 | 55 | 10 | |
1,1-dichloroethane | 0.5 ppbv | 75-34-3 | 4000 | 1000 | 400 | 100 | |
1,1-dichloroethene | 0.5 ppbv | 75-35-4 | 40 | 10 | 4 | 1 | |
1,2,4-trichlorobenzene | 0.5 ppbv | 120-82-1 | 400 | 50 | 40 | 5 | |
1,2,4-trimethylbenzene | 0.5 ppbv | 25551-13-7 | 1250 | 250 | 125 | 25 | |
1,2-dibromoethane | 0.5 ppbv | 106-93-4 | 3.8 | 0.5 | 0.38 | 0.05 | |
1,2-dichloro-1,1,2,2-tetrafluoroethane | 0.5 ppbv | 76-14-2 | 69900 | 10000 | 6990 | 1000 | |
1,2-dichlorobenzene | 0.5 ppbv | 95-50-1 | 1500 | 250 | 150 | 25 | |
1,2-dichloroethane (24 hour) | 0.5 ppbv | 107-06-2 | 16 | 4 | 4 | 1 | |
1,2-dichloroethane | 0.5 ppbv | 107-06-2 | 160 | 40 | 4 | 1 | |
1,2-dichloropropane | 0.5 ppbv | 78-87-5 | 1150 | 250 | 115 | 25 | |
1,3,5-trimethylbenzene | 0.5 ppbv | 108-67-8 | 1250 | 250 | 125 | 25 | |
1,3-butadiene | 0.5 ppbv | ||||||
1,3-dichlorobenzene | 0.5 ppbv | 541-73-1 | 2500 | 415 | 250 | 41.5 | |
1,4-dichlorobenzene | 0.5 ppbv | 106-46-7 | 600 | 100 | 60 | 10 | |
2,2,4-trimethylpentane (iso-octane) | 0.5 ppbv | 540-84-1 | 3500 | 750 | 350 | 75 | |
2-butanone | 0.5 ppbv | ||||||
4-methyl-2-pentanone | 0.5 ppbv | ||||||
acetonitrile | This compound is no longer available at the present time. | 75-05-8 | 340 | 200 | 34 | 20 | |
acrylonitrile | 0.5 ppbv | 107-13-1 | 43 | 20 | 4.3 | 2 | |
allyl chloride | 0.5 ppbv | 107-05-1 | 30 | 10 | 3 | 1 | |
benzene ( 24 hour ) | 0.5 ppbv | 71-43-2 | 12 | 4 | 3 | 1 | |
benzene | 0.5 ppbv | 71-43-2 | 75 | 25 | 3 | 1 | |
benzyl chloride | 0.5 ppbv | 100-44-7 | 50 | 10 | 5 | 1 | |
bromomethane | 0.5 ppbv | ||||||
carbon tetrachloride | 0.5 ppbv | 56-23-5 | 126 | 20 | 13 | 2 | |
chlorobenzene | 0.5 ppbv | 108-90-7 | 460 | 100 | 46 | 10 | |
chloroethane | 0.5 ppbv | 75-00-3 | 500 | 190 | 50 | 19 | |
chloroform | 0.5 ppbv | 67-66-3 | 98 | 20 | 9.8 | 2 | |
chloromethane | 0.5 ppbv | 74-87-3 | 1030 | 500 | 103 | 50 | |
cis-1,2-dichloroethene | 0.5 ppbv | 540-59-0 | 7930 | 2000 | 793 | 200 | |
cis-1,3-dichloropropene | 0.5 ppbv | 542-75-6 | 45 | 10 | 4.5 | 1 | |
dichlorodifluoromethane | 0.5 ppbv | 75-71-8 | 49500 | 10000 | 4950 | 1000 | |
ethyl bromide | 0.5 ppbv | 74-96-4 | 220 | 50 | 22 | 5 | |
ethylbenzene | 0.5 ppbv | 100-41-4 | 2000 | 461 | 200 | 46.1 | |
hexachlorobutadiene | 0.5 ppbv | 87-68-3 | 2.1 | 0.2 | 0.21 | 0.02 | |
hexane n- | 0.5 ppbv | 110-54-3 | 1760 | 500 | 176 | 50 | |
hexane , other isomers | 0.5 ppbv | ------ | 3500 | 1000 | 350 | 100 | |
methylene chloride | 0.5 ppbv | 75-09-2 | 260 | 75 | 26 | 7.5 | |
styrene (monomer) | 0.5 ppbv | 100-42-5 | 110 | 25 | 11 | 2.5 | |
tetrachloroethene | 0.5 ppbv | 127-18-4 | 340 | 50 | 34 | 5 | |
toluene | 0.5 ppbv | 108-88-3 | 1880 | 500 | 188 | 50 | |
trans-1,3-dichloropropene | 0.5 ppbv | 542-75-6 | 45 | 10 | 4.5 | 1 | |
trichloroethene | 0.5 ppbv | 79-01-6 | 1350 | 250 | 135 | 25 | |
trichlorofluoromethane | 0.5 ppbv | 75-69-4 | 28000 | 5000 | 2800 | 500 | |
vinyl acetate | 5.0 ppbv | 108-05-4 | 150 | 40 | 15 | 4 | |
vinyl bromide | 0.5 ppbv | 593-60-2 | 220 | 50 | 22 | 5 | |
vinyl chloride | 0.5 ppbv | 75-01-4 | 130 | 50 | 13 | 5 | |
o-xylene | 0.5 ppbv | 95-47-6 | |||||
p/m-xylene | 0.5 ppbv | 1477-55-0 | |||||
xylene,( mixed or all isomers, except p- ) | 1330-20-7 | 3700 | 850 | 370 | 85 | ||
xylene, p- | 106-42-3 | 2079 | 480 | 208 | 48 |
ToxFAQs
About ToxFAQs
The ATSDR ToxFAQs is a series of summaries about hazardous
substances developed by the ATSDR Division
of Toxicology. Information for this series is excerpted from the ATSDR
Toxicological Profiles and Public Health Statements. Each fact sheet serves
as a quick and easy to understand guide. Answers are provided to the most
frequently asked questions (FAQs) about exposure to hazardous substances
found around hazardous waste sites and the effects of exposure on human
health.
Each ToxFAQs is available in both the standard HTML format below or in the PDF format which provides the familiar two page print version widely used at community meetings and distributed via our mailing list. This PDF format requires Adobe Acrobat Reader, which can be downloaded free from the Adobe web site.
NIOSH Research NIOSH Services
The National Institute for Occupational Safety and Health (NIOSH) is the Federal agency responsible for conducting research and making recommendations for the prevention of work-related disease and injury. The Institute is part of the Centers for Disease Control and Prevention (CDC).
NIOSH is responsible for conducting research on the full scope of occupational disease and injury ranging from lung disease in miners to carpal tunnel syndrome in computer users. In addition to conducting research, NIOSH:
investigates potentially hazardous working conditions when requested by employers or employees;
makes recommendations and disseminates information on preventing workplace disease, injury, and disability; and
provides training to occupational safety and health professionals.
Other Souces of Environmental Toxicology Data
The Health Effects Notebook for Hazardous Air Pollutants-- Detailed information about the health effects of hazardous air pollutants (HAPs) is available in separate fact sheets, for nearly every HAP specified in the Clean Air Act Amendments of 1990.
ToxNet - A network of
databases on toxicology, hazadarous chemicals, and related information.
This data is provided by U.S. National Library of Medicine, 8600 Rockville
Pike, Bethesda, MD 20894,National Institutes of Health, Department of
Health & Human Services.