| AE |
Acid Equivalent |
| ai |
® Active Ingredient |
| AGDCI |
Agricultural Data Call-In |
| ai |
Active Ingredient |
| aPAD |
Acute Population Adjusted Dose |
| AR |
Anticipated Residue |
| ARC |
Anticipated Residue Contribution |
| BCF |
Bioconcentration Factor |
| CAS |
Chemical Abstracts Service |
| CI |
Cation |
| CNS |
Central Nervous System |
| cPAD |
Chronic Population Adjusted Dose |
| CSF |
Confidential Statement of Formula |
| CFR |
Code of Federal Regulations |
| CSFII |
USDA Continuing Surveys for Food Intake by Individuals |
| DCI |
Data Call-In |
| DEEM |
Dietary Exposure Evaluation Model |
| DFR |
Dislodgeable Foliar Residue |
| DRES |
Dietary Risk Evaluation System |
| DWEL |
Drinking Water Equivalent Level (DWEL). The DWEL represents
a medium specific (i.e., drinking water) lifetime exposure at which adverse,
noncarcinogenic health effects are not anticipated to occur. |
| DWLOC |
Drinking Water Level of Comparison. |
| EC |
Emulsifiable Concentrate Formulation |
| EEC |
Estimated Environmental Concentration. The estimated pesticide
concentration in an environment, such as a terrestrial ecosystem. |
| EP |
End-Use Product |
| EPA |
U.S. Environmental Protection Agency |
| FAO |
Food and Agriculture Organization |
| FDA |
Food and Drug Administration |
| FIFRA |
Federal Insecticide, Fungicide, and Rodenticide Act |
| FFDCA |
Federal Food, Drug, and Cosmetic Act |
| FQPA |
Food Quality Protection Act |
| FOB |
Functional Observation Battery |
| G |
Granular Formulation |
| GENEEC |
Tier I Surface Water Computer Model |
| GLC |
Gas Liquid Chromatography |
| GLN |
Guideline Number |
| GM |
Geometric Mean |
| GRAS |
Generally Recognized as Safe as Designated by FDA |
| HA |
Health Advisory (HA). The HA values are used as informal guidance
to municipalities and other organizations when emergency spills or contamination
situations occur. |
| HAFT |
Highest Average Field Trial |
| HDT |
Highest Dose Tested |
| IR |
Index Reservoir |
| Kow |
Octanol-water partition coefficient |
| LC50 |
Median Lethal Concentration. A statistically derived concentration
of a substance that can be expected to cause death in 50% of test animals.
It is usually expressed as the weight of substance per weight or volume
of water, air or feed, e.g., mg/l, mg/kg or ppm. |
| LD50 |
Median Lethal Dose. A statistically derived single dose that
can be expected to cause death in 50% of the test animals when administered
by the route indicated (oral, dermal, inhalation). It is expressed as a
weight of substance per unit weight of animal, e.g., mg/kg. |
| LEL |
Lowest Effect Level |
| LOC |
Level of Concern |
| LOD |
Limit of Detection |
| LOAEL |
Lowest Observed Adverse Effect Level |
| MATC |
Maximum Acceptable Toxicant Concentration |
| MCLG |
Maximum Contaminant Level Goal (MCLG). The MCLG is used by the
Agency to regulate contaminants in drinking water under the Safe Drinking
Water Act. |
| mg/kg/day |
Milligram Per Kilogram Per Day |
| mg/L |
Milligrams Per Liter |
| mm/Hg |
Millimeters of Mercury. This is a measure of vapor pressure. |
| MOE |
Margin of Exposure |
| MP |
Manufacturing-Use Product |
| MPI |
Maximum Permissible Intake |
| MRID |
Master Record Identification (number). EPA's system of recording
and tracking studies submitted. |
| NA |
Not Applicable |
| N/A |
Not Applicable |
| NAWQA |
USGS National Water Quality Assessment |
| NOEC |
No Observable Effect Concentration |
| NOEL |
No Observed Effect Level |
| NOAEL |
No Observed Adverse Effect Level |
| NPDES |
National Pollutant Discharge Elimination System |
| NR |
Not Required |
| OP |
Organophosphate |
| OPP |
EPA Office of Pesticide Programs |
| OPPTS |
EPA Office of Prevention, Pesticides and Toxic Substances |
| Pa |
pascal. The pressure exerted by a force of one newton acting on
an area of one square meter. |
| PAD |
Population Adjusted Dose |
| PADI |
Provisional Acceptable Daily Intake |
| PAG |
Pesticide Assessment Guideline |
| PAM |
Pesticide Analytical Method |
| PCA |
Percent Crop Area |
| PDP |
USDA Pesticide Data Program |
| PHED |
Pesticide Handler's Exposure Data |
| PHI |
Preharvest Interval |
| ppb |
Parts Per Billion |
| PPE |
Personal Protective Equipment |
| ppm |
Parts Per Million |
| PRN |
Pesticide Registration Notice |
| PRZM |
/ |
| EXAMS |
Tier II Surface Water Computer Model |
| Q1* |
The Carcinogenic Potential of a Compound, Quantified by the EPA's
Cancer Risk Model |
| RAC |
Raw Agriculture Commodity |
| RBC |
Red Blood Cell |
| RED |
Reregistration Eligibility Decision |
| REI |
Restricted Entry Interval |
| RfD |
Reference Dose |
| RQ |
Risk Quotient |
| RS |
Registration Standard |
| RUP |
Restricted Use Pesticide |
| SAP |
Science Advisory Panel |
| SCI-GROW |
Tier I Ground Water Computer Model |
| SF |
Safety Factor |
| SLC |
Single Layer Clothing |
| SLN |
Special Local Need (Registrations Under Section 24© of FIFRA) |
| TC |
Toxic Concentration. The concentration at which a substance produces
a toxic effect. |
| TD |
Toxic Dose. The dose at which a substance produces a toxic effect. |
| TEP |
Typical End-Use Product |
| TGAI |
Technical Grade Active Ingredient |
| TLC |
Thin Layer Chromatography |
| TMRC |
Theoretical Maximum Residue Contribution |
| torr |
A unit of pressure needed to support a column of mercury 1 mm
high under standard conditions. |
| TRR |
Total Radioactive Residue |
| UF |
Uncertainty Factor |
| g/g |
Micrograms Per Gram |
| g/L |
Micrograms Per Liter |
| USDA |
United States Department of Agriculture |
| USGS |
United States Geological Survey |
| UV |
Ultraviolet |
| WHO |
World Health Organization |
| WP |
Wettable Powder |
| WPS |
Worker Protection Standard |
![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}