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Qualifiers
December 16, 2016
AQS Reference Table
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Qualifier Code | Qualifier Description | Qualifier Type | Qaulifier Type Code | Still Active | Legacy Code |
---|---|---|---|---|---|
RA | African Dust | Request Exclusion | REQEXC | YES | |
RB | Asian Dust | Request Exclusion | REQEXC | YES | |
RC | Chem. Spills & Indust. Accidents | Request Exclusion | REQEXC | YES | |
RD | Cleanup After a Major Disaster | Request Exclusion | REQEXC | YES | |
RE | Demolition | Request Exclusion | REQEXC | YES | |
RF | Fire - Canadian | Request Exclusion | REQEXC | YES | |
RG | Fire - Mexico/Central America | Request Exclusion | REQEXC | YES | |
RH | Fireworks | Request Exclusion | REQEXC | YES | |
RI | High Pollen Count | Request Exclusion | REQEXC | YES | |
RJ | High Winds | Request Exclusion | REQEXC | YES | |
RK | Infrequent Large Gatherings | Request Exclusion | REQEXC | YES | |
RL | Other | Request Exclusion | REQEXC | YES | |
RM | Prescribed Fire | Request Exclusion | REQEXC | YES | |
RN | Seismic Activity | Request Exclusion | REQEXC | YES | |
RO | Stratospheric Ozone Intrusion | Request Exclusion | REQEXC | YES | |
RP | Structural Fire | Request Exclusion | REQEXC | YES | |
RQ | Terrorist Act | Request Exclusion | REQEXC | YES | |
RR | Unique Traffic Disruption | Request Exclusion | REQEXC | YES | |
RS | Volcanic Eruptions | Request Exclusion | REQEXC | YES | |
RT | Wildfire-U. S. | Request Exclusion | REQEXC | YES | |
1 | Deviation from a CFR/Critical Criteria Requirement | Quality Assurance Qualifier | QA | YES | |
2 | Operational Deviation | Quality Assurance Qualifier | QA | YES | |
3 | Field Issue | Quality Assurance Qualifier | QA | YES | |
4 | Lab Issue | Quality Assurance Qualifier | QA | YES | |
5 | Outlier | Quality Assurance Qualifier | QA | YES | |
6 | QAPP Issue | Quality Assurance Qualifier | QA | YES | |
7 | Below Lowest Calibration Level | Quality Assurance Qualifier | QA | YES | |
9 | Negative value detected - zero reported | Quality Assurance Qualifier | QA | YES | |
CB | Values have been Blank Corrected | Quality Assurance Qualifier | QA | YES | |
CC | Clean Canister Residue | Quality Assurance Qualifier | QA | YES | |
CL | Surrogate Recoveries Outside Control Limits | Quality Assurance Qualifier | QA | YES | |
DI | Sample was diluted for analysis | Quality Assurance Qualifier | QA | YES | |
EH | Estimated; Exceeds Upper Range | Quality Assurance Qualifier | QA | YES | |
FB | Field Blank Value Above Acceptable Limit | Quality Assurance Qualifier | QA | YES | |
FX | Filter Integrity Issue | Quality Assurance Qualifier | QA | YES | |
HT | Sample pick-up hold time exceeded | Quality Assurance Qualifier | QA | YES | |
LB | Lab blank value above acceptable limit | Quality Assurance Qualifier | QA | YES | |
LJ | Identification Of Analyte Is Acceptable; Reported Value Is An Estimate | Quality Assurance Qualifier | QA | YES | |
LK | Analyte Identified; Reported Value May Be Biased High | Quality Assurance Qualifier | QA | YES | |
LL | Analyte Identified; Reported Value May Be Biased Low | Quality Assurance Qualifier | QA | YES | |
MD | Value less than MDL | Quality Assurance Qualifier | QA | YES | |
MS | Value reported is 1/2 MDL substituted. | Quality Assurance Qualifier | QA | YES | |
MX | Matrix Effect | Quality Assurance Qualifier | QA | YES | |
ND | No Value Detected, Zero Reported | Quality Assurance Qualifier | QA | YES | |
NS | Influenced by nearby source | Quality Assurance Qualifier | QA | YES | |
QX | Does not meet QC criteria | Quality Assurance Qualifier | QA | YES | |
SQ | Values Between SQL and MDL | Quality Assurance Qualifier | QA | YES | |
SS | Value substituted from secondary monitor | Quality Assurance Qualifier | QA | YES | |
SX | Does Not Meet Siting Criteria | Quality Assurance Qualifier | QA | YES | |
TB | Trip Blank Value Above Acceptable Limit | Quality Assurance Qualifier | QA | YES | |
TT | Transport Temperaure is Out of Specs. | Quality Assurance Qualifier | QA | YES | |
V | Validated Value | Quality Assurance Qualifier | QA | YES | |
VB | Value below normal; no reason to invalidate | Quality Assurance Qualifier | QA | YES | |
W | Flow Rate Average out of Spec. | Quality Assurance Qualifier | QA | YES | |
X | Filter Temperature Difference out of Spec. | Quality Assurance Qualifier | QA | YES | |
Y | Elapsed Sample Time out of Spec. | Quality Assurance Qualifier | QA | YES | |
AA | Sample Pressure out of Limits | Null Data Qualifier | NULL | YES | 9967 |
AB | Technician Unavaliable | Null Data Qualifier | NULL | YES | 9968 |
AC | Construction/Repairs in Area | Null Data Qualifier | NULL | YES | 9969 |
AD | Shelter Storm Damage | Null Data Qualifier | NULL | YES | 9970 |
AE | Shelter Temperature Outside Limits | Null Data Qualifier | NULL | YES | 9971 |
AF | Scheduled but not Collected | Null Data Qualifier | NULL | YES | 9972 |
AG | Sample Time out of Limits | Null Data Qualifier | NULL | YES | 9973 |
AH | Sample Flow Rate out of Limits | Null Data Qualifier | NULL | YES | 9974 |
AI | Insufficient Data (cannot calculate) | Null Data Qualifier | NULL | YES | 9975 |
AJ | Filter Damage | Null Data Qualifier | NULL | YES | 9976 |
AK | Filter Leak | Null Data Qualifier | NULL | YES | 9977 |
AL | Voided by Operator | Null Data Qualifier | NULL | YES | 9978 |
AM | Miscellaneous Void | Null Data Qualifier | NULL | YES | 9979 |
AN | Machine Malfunction | Null Data Qualifier | NULL | YES | 9980 |
AO | Bad Weather | Null Data Qualifier | NULL | YES | 9981 |
AP | Vandalism | Null Data Qualifier | NULL | YES | 9982 |
AQ | Collection Error | Null Data Qualifier | NULL | YES | 9983 |
AR | Lab Error | Null Data Qualifier | NULL | YES | 9984 |
AS | Poor Quality Assurance Results | Null Data Qualifier | NULL | YES | 9985 |
AT | Calibration | Null Data Qualifier | NULL | YES | 9986 |
AU | Monitoring Waived | Null Data Qualifier | NULL | YES | 9987 |
AV | Power Failure | Null Data Qualifier | NULL | YES | 9988 |
AW | Wildlife Damage | Null Data Qualifier | NULL | YES | 9989 |
AX | Precision Check | Null Data Qualifier | NULL | YES | 9990 |
AY | Q C Control Points (zero/span) | Null Data Qualifier | NULL | YES | 9991 |
AZ | Q C Audit | Null Data Qualifier | NULL | YES | 9992 |
BA | Maintenance/Routine Repairs | Null Data Qualifier | NULL | YES | 9993 |
BB | Unable to Reach Site | Null Data Qualifier | NULL | YES | 9994 |
BC | Multi-point Calibration | Null Data Qualifier | NULL | YES | 9995 |
BD | Auto Calibration | Null Data Qualifier | NULL | YES | 9996 |
BE | Building/Site Repair | Null Data Qualifier | NULL | YES | 9997 |
BF | Precision/Zero/Span | Null Data Qualifier | NULL | YES | 9998 |
BG | Missing ozone data not likely to exceed level of standard | Null Data Qualifier | NULL | YES | 9966 |
BH | Interference/co-elution/misidentification | Null Data Qualifier | NULL | YES | 9965 |
BI | Lost or damaged in transit | Null Data Qualifier | NULL | YES | 9964 |
BJ | Operator Error | Null Data Qualifier | NULL | YES | 9963 |
BK | Site computer/data logger down | Null Data Qualifier | NULL | YES | 9962 |
BL | QA Audit | Null Data Qualifier | NULL | YES | 9961 |
BM | Accuracy check | Null Data Qualifier | NULL | YES | 9960 |
BN | Sample Value Exceeds Media Limit | Null Data Qualifier | NULL | YES | 9947 |
BR | Sample Value Below Acceptable Range | Null Data Qualifier | NULL | YES | |
CS | Laboratory Calibration Standard | Null Data Qualifier | NULL | YES | 9953 |
DA | Aberrant Data (Corrupt Files, Aberrant Chromatography, Spikes, Shifts) | Null Data Qualifier | NULL | YES | 9951 |
DL | Detection Limit Analyses | Null Data Qualifier | NULL | YES | 9949 |
FI | Filter Inspection Flag | Null Data Qualifier | NULL | YES | 9959 |
MB | Method Blank (Analytical) | Null Data Qualifier | NULL | YES | 9955 |
MC | Module End Cap Missing | Null Data Qualifier | NULL | YES | 9958 |
QV | Quality Control Multi-point Verification | Null Data Qualifier | NULL | YES | |
SA | Storm Approaching | Null Data Qualifier | NULL | YES | 9957 |
SC | Sampler Contamination | Null Data Qualifier | NULL | YES | 9948 |
ST | Calibration Verification Standard | Null Data Qualifier | NULL | YES | 9954 |
TC | Component Check & Retention Time Standard | Null Data Qualifier | NULL | YES | 9952 |
TS | Holding Time Or Transport Temperature Is Out Of Specs. | Null Data Qualifier | NULL | YES | 9956 |
XX | Experimental Data | Null Data Qualifier | NULL | YES | 9950 |
IA | African Dust | Informational Only | INFORM | YES | |
IB | Asian Dust | Informational Only | INFORM | YES | |
IC | Chem. Spills & Indust Accidents | Informational Only | INFORM | YES | |
ID | Cleanup After a Major Disaster | Informational Only | INFORM | YES | |
IE | Demolition | Informational Only | INFORM | YES | |
IF | Fire - Canadian | Informational Only | INFORM | YES | |
IG | Fire - Mexico/Central America | Informational Only | INFORM | YES | |
IH | Fireworks | Informational Only | INFORM | YES | |
II | High Pollen Count | Informational Only | INFORM | YES | |
IJ | High Winds | Informational Only | INFORM | YES | |
IK | Infrequent Large Gatherings | Informational Only | INFORM | YES | |
IL | Other | Informational Only | INFORM | YES | |
IM | Prescribed Fire | Informational Only | INFORM | YES | |
IN | Seismic Activity | Informational Only | INFORM | YES | |
IO | Stratospheric Ozone Intrusion | Informational Only | INFORM | YES | |
IP | Structural Fire | Informational Only | INFORM | YES | |
IQ | Terrorist Act | Informational Only | INFORM | YES | |
IR | Unique Traffic Disruption | Informational Only | INFORM | YES | |
IS | Volcanic Eruptions | Informational Only | INFORM | YES | |
IT | Wildfire-U. S. | Informational Only | INFORM | YES | |
J | Construction | Informational Only | INFORM | YES | |
E | Forest Fire | Request Exclusion | REQEXC | NO | |
RU | Wildland Fire Use Fire-U. S. | Request Exclusion | REQEXC | NO | |
8 | QA/QC Unknown | Quality Assurance Qualifier | QA | NO | |
PQ | Values Between PQL And MDL | Quality Assurance Qualifier | QA | NO | |
T | Multiple PM2.5 Validity Flags | Quality Assurance Qualifier | QA | NO | |
A | High Winds | Informational Only | INFORM | NO | |
B | Stratospheric Ozone Intrusion | Informational Only | INFORM | NO | |
C | Volcanic Eruption | Informational Only | INFORM | NO | |
D | Sandblasting | Informational Only | INFORM | NO | |
F | Structural Fire | Informational Only | INFORM | NO | |
G | High Pollen Count | Informational Only | INFORM | NO | |
H | Chem. Spills & Indust. Accidents | Informational Only | INFORM | NO | |
I | Unusual Traffic Congestion | Informational Only | INFORM | NO | |
IU | Wildland Fire Use Fire-U. S. | Informational Only | INFORM | NO | |
K | Agricultural Tilling | Informational Only | INFORM | NO | |
L | Highway Construction | Informational Only | INFORM | NO | |
M | Rerouting of Traffic | Informational Only | INFORM | NO | |
N | Sanding/Salting of Streets | Informational Only | INFORM | NO | |
O | Infrequent Large Gatherings | Informational Only | INFORM | NO | |
P | Roofing Operations | Informational Only | INFORM | NO | |
Q | Prescribed Burning | Informational Only | INFORM | NO | |
R | Cleanup After a Major Disaster | Informational Only | INFORM | NO | |
S | Seismic Activity | Informational Only | INFORM | NO | |
U | Sahara Dust | Informational Only | INFORM | NO | |
Z | Other event | Informational Only | INFORM | NO |