Data and Tools

EPA Method 549.2: Determination of Diquat and Paraquat in Drinking Water by Liquid-Solid Extraction and High Performance Liquid Chromatography with Ultraviolet Detection

SAM lists this method for preparation and analysis of water samples to detect and measure paraquat using HPLC-UV.

OSHA Method 61: Phosgene

Method 61 describes procedures for preparation and analysis of air samples for detection and measurement of phosgene, using by solvent desorption and GC/nitrogen selective detector.

EPA Method 531.2: Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in Water by Direct Aqueous Injection HPLC with Postcolumn Derivatization

SAM lists this method for preparation and analysis of drinking water samples to address N-methylcarbamoyloximes and N-methylcarbamates using HPLC.

OSHA Method ID216SG: Boron Trifluoride (BF3)

This method describes procedures for preparation and analysis of air samples for detection and measurement of boron trifluoride collected in bubblers, using ion-specific electrodes.

EPA Method 3570 (SW-846): Microscale Solvent Extraction (MSE)

Method 3570 describes procedures for preparation of solid samples for subsequent analysis of select semivolatile organic compounds, using microscale solvent extraction.

EPA Method 5035A (SW-846): Closed-System Purge-and-Trap and Extraction for Volatile Organics in Soil and Waste Samples

SAM lists this method for preparation of solid samples to be analyzed for select VOCs, using purge-and-trap GC.

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.

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.

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.

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.

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.

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.

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.

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).

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.

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.

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.