Data and Tools
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Meteorological Processors and Accessory Programs
Surface and upper air data, provided by NWS, are important inputs for air quality models. Before these data are used in some of the EPA dispersion models, meteorological processors are used to manipulate the data.
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EDIT node 300649 Oklahoma EPA-Approved Oklahoma Regulations SIP effective August 3, 2026 (OKd40) – NOT AVAILABLE – UNDER DEVELOPMENT
Current EPA-Approved Regulations in the Oklahoma SIP
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Search Products that Meet the Safer Choice Standard
All products earning EPA's Safer Choice label were evaluated under the Safer Choice Standard
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Where to Find EPA Data
Where to find EPA data links to data repositories and topically aligned data web areas
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Maps
eGRID Maps
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Registering Your Company
This page allows interested businesses to register with federal government in SAM
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KABAM Version 1.0 User's Guide and Technical Documentation - Appendix C - Explanation of Default Values Representing Biotic Characteristics of Aquatic Ecosystem, Including Food Web Structure
Information relevant to KABAM and explanations of default parameters used to define the 7 trophic levels. KABAM is a simulation model used to predict pesticide concentrations in aquatic regions for use in exposure assessments.
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T-HERPS Version 1.0 User's Guide for Risk to Amphibians and Reptiles from Pesticides
T-HERPS estimates dietary exposure and risk to terrestrial-phase amphibians and reptiles from pesticide use. Currently approved for assessing exposure and risk to the California red-legged frog and terrestrial-phase herptiles with similar dietary behavior
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KABAM Version 1.0 User's Guide and Technical Documentation - Appendix E - Selection of Bird Species of Concern and Corresponding Biological Parameters
Bird species of concern were identified to define default parameters (body weight and diet composition) to represent birds in KABAM. KABAM is a simulation model used to predict pesticide concentrations in aquatic regions for use in exposure assessments.
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Tolerances by Commodity, Crop Group, or Crop Subgroup Index
Index to Pesticide Chemical Names, Part 180 Tolerance Information, and Food and Feed Commodities (by Commodity)
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KABAM Version 1.0 User's Guide and Technical Documentation - Appendix A - Description of Bioaccumulation Model
The purpose of this model is to estimate chemical concentrations (CB) and BCF and BAF values for aquatic ecosystems. KABAM is a simulation model used to predict pesticide concentrations in aquatic regions for use in exposure assessments.
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TRI Operator Definition
The Toxics Release Inventory (TRI) contains information about more than 650 toxic chemicals that are being used, manufactured, treated, transported, or released into the environment.
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Greenhouse Gas Search User Guide
Search the GHG data for individual facilities by name, or location or filter the data set by state or county, industrial sectors, annual facility emissions thresholds and greenhouse gases.
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Optimization Model for reducing Emissions of Greenhouse Gases from Automobiles (OMEGA)
OMEGA is a free, desktop computer application which estimates the technology cost for automobile manufacturers to achieve variable fleet-wide levels of vehicle greenhouse gas (GHG) emissions.
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Safer Chemicals Research
EPA's Chemical Safety research protects human health and the environment by evaluating chemicals for potential risk and providing tools and guidance for improved chemical production that supports a sustainable environment.
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SIP Version 1.0 User's Guide for Pesticide Exposure of Birds and Mammals through Drinking Water
Model provides an upper bound estimate of exposure of birds and mammals to pesticides through drinking water alone. Intended for use in problem formulation to determine whether or not drinking water exposure alone is a potential pathway of concern.
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Compliance Software for Radioactive Air Emissions
Atmospheric dispersion and transport models that are used to assess radiation dose and risk and to demonstrate compliance with certain radionuclide National Emission Standards for Hazardous Air Pollutants (NESHAPs) regulations.
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Contact Us about the Benchmarking and Building Performance Standards Policy Toolkit
Contact Us about the Existing Buildings: Energy Benchmarking and Performance Standards Toolkit
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2026 Ozone Exceedances
View 2026 Ozone Exceedances for New England.
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Chemical Assessment Clustering Engine (ChemACE)
ChemACE allows a user to instantly cluster a large list of chemicals into structurally related groups of chemicals to support read across and data gap filling