Science & Technology
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EPA IO [Inorganic] Compendium Method IO-3.4: Determination of Metals in Ambient Particulate Matter Using Inductively Coupled Plasma (ICP) Spectroscopy
This method describes procedures for analysis of compounds containing arsenic, osmium, thallium or vanadium in prepared air samples, using ICP-AES.
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EPA Method 8290A, Appendix A (SW-846): Procedure for the Collection, Handling, Analysis, and Reporting of Wipe Tests Performed Within the Laboratory
This method provides procedures for detection and measurement of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in a variety of environmental matrices.
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EPA IO [Inorganic] Compendium Method IO-5: Sampling and Analysis for Vapor and Particle Phase Mercury in Ambient Air Utilizing Cold Vapor Atomic Fluorescence Spectrometry (CVAFS)
This method describes procedures for preparation and analysis of air samples for vapor and particulate mercury using acid digestion and cold vapor atomic fluorescence spectrometry.
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Air Data - Daily Air Quality Tracker (PDF Report)
This tool plots recent daily AQI values relative to the long-term high/low and recent 5-year average for a specific location and time period.
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EPA Air Method, Toxic Organics - 10A (TO-10A): Determination of Pesticides and Polychlorinated Biphenyls in Ambient Air Using Low Volume Polyurethane Foam (PUF) Sampling Followed by Gas Chromatographic/Multi-Detector Detection (GC/MD)
This method describes procedures for preparation and analysis of air samples for detection and measurement of select organic compounds, using solvent extraction and GC-MS.
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EPA Method 3135.2I: Cyanide, Total and Amenable in Aqueous and Solid Samples Automated Colorimetric With Manual Digestion
This method describes procedures for preparation and analysis of solid, water and wipe samples for detection and measurement of cyanide amendable to chlorination using acid digestion and spectrophotometry.
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EPA IO [Inorganic] Compendium Method IO-3.5: Determination of Metals in Ambient Particulate Matter Using Inductively Coupled Plasma/Mass Spectrometry (ICP-MS)
This method describes procedures for analysis of prepared air samples for detection and measurement of metal compounds as the total metal, using ICP-MS.
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IPM Analysis of the Proposed Mercury and Air Toxics Standards (MATS)
Learn about EPA's analysis of the impact of the proposed Toxics Rule on the U.S. electric power sector using version 4.10_PTox of the Integrated Planning Model (IPM).
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EPA Method 538: Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS)
EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) lists this method for preparation and analysis of drinking water samples to detect and measure acephate, diisopropyl methylphosphonate (DIMP), methamidophos and thiofanox.
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EPA Method 8316 (SW-846): Acrylamide, Acrylonitrile and Acrolein by High Performance Liquid Chromatography (HPLC)
This method describes procedures for analysis of acrylamide, acrylonitrile and acrolein in water samples, using HPLC-UV detection.
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EPA Method 525.2: Determination of Organic Compounds in Drinking Water by Liquid-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry
SAM lists this method for preparation and analysis of water samples for selected organic compounds using liquid-solid or solid-phase extraction and GC-MS.
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EPA Method 8318A (SW-846): N-Methylcarbamates by High Performance Liquid Chromatography (HPLC)
This method describes procedures for preparation and analysis of solid samples for methylcarbamates using solvent extraction and HPLC-FL detection.
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IPM Analysis of the Final Mercury and Air Toxics Standards (MATS)
EPA used version 4.10_MATS of the Integrated Planning Model (IPM) to analyze the impact of the Mercury and Air Toxics Standards (MATS) rule on the U.S. electric power sector. Learn about the results and view links to documentation.
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Power Sector Modeling Platform v.5.15
Learn about EPA’s Base Case v.5.15, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
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Summary of Reporting Requirement Changes due to the CDR Revisions and Small Manufacturing Definition Update Rules
A brief overview on the development of the CDR/ IUR regulations and general requirements for reporting.
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IPM Analysis of the Proposed Transport Rule (CSAPR)
Learn about how EPA used Integrated Planning Models (IPM) to analyse the effects of the proposed Cross-State Air Pollution Rule (CSAPR), also known as the Transport Rule.
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Power Sector Modeling Platform v.5.16
Learn about EPA’s Base Case v.5.15, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
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Power Sector Modeling Platform v.6 May 2018
Learn about EPA’s Base Case v.5.15, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
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Power Sector Modeling Platform v6 November 2018
Learn about EPA’s Base Case v.6 November 2018 Reference Case, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
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Ex Ante Costs vs. Ex Post Costs of the Large Municipal Waste Combustor Rule
This is a working paper titled "Ex Ante Costs vs. Ex Post Costs of the Large Municipal Waste Combustor Rule"