Science & Technology
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Halogenated and Aromatic Volatile Organic Compounds (VOCs) by Gas Chromatography: SW-846 Methods 8010A and 8020A or Method 8021A
Summarizes holding times and preservation for halogenated and aromatic volatile organic compounds by gas chromatography. Also provides a target compound list, and calibration procedures.
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September 2017 MOVES Model Review Work Group Meeting Materials
September 2017 MOVES Model Review Work Group Meeting Materials.
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Frequent Questions: Nutrient Criteria Implementation
Information related to Frequent Questions: Nutrient Criteria Implementation
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6PPD-quinone
Learn about 6PPD-quinone and what EPA is doing to address it.
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Guidelines for Deriving Numerical National Water Quality Criteria for the Protection of Aquatic Organisms and Their Uses
Criteria produced by these Guidelines are intended to be useful for developing water quality standards, mixing zone standards, and effluent limitations.
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BOSC EC Meeting - December 2022
BOSC EC Meeting - December 2022
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Ecoregional Nutrient Criteria for Wetlands
This document present EPA's nutrient criteria for Wetlands in Ecoregion XIII. It contains EPA's recommendations to states and authorized tribes for establishing their water quality standards. These recommended criteria are not laws
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Water Quality Standards Regulations: Miccosukee Tribe of Indians of Florida
Information related to Water Quality Standards for Miccosukee Tribe of Indians of Florida.
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Clean Air Act Second Prospective Report Study Science Advisory Board Review, February 19, 2010
The following materials were submitted to the Air Quality Modeling Subcommittee (AQMS) technical subcommittee of the section 812 Council pursuant to their February 19, 2010 review meeting in Washington, D.C.
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Webinar: New Renewable Natural Gas Projects by LMOP Partners in Texas and New York
LMOP webinar on November 12, 2024 about two new landfill gas-to-renewable natural gas projects in Texas and New York.
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Guidance for Using Daily Average Aquatic Concentrations in Ecological Drinking Water Assessments
This memorandum announces a change in the way EFED calculates acute EECs for ecological assessments and acute EDWCs for human health assessments in surface water.
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Study Profile Templates - Series 890 - Endocrine Disruptor Screening Program Test Guidelines
These templates are for use in preparation for the data evaluation record (DER) for the indicated study.
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Guidance for Classifying Studies Conducted Using the OECD Test Guideline 223 (TG223) (Acute Avian Oral Sequential Dose Study)
Guidance based on comparison of results from the TG223 validation studies to results from avian acute oral studies previously submitted to EPA for two test chemicals following EPA's 850.2100 (public draft) guidelines.
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What are Hazardous Air Pollutants?
What are hazardous air pollutants?
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2011 NATA: Assessment Methods
Information about assessment methods used in the 2011 NATA assessment
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Presidential Green Chemistry Challenge: 2016 Greener Synthetic Pathways Award
Presidential Green Chemistry Challenge 2016 award winners, Albemarle and CB&I, developed a safer technology to produce alkylate, a clean gasoline component by replacing liquid acid catalysts with a lower environmental impact catalyst
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Presidential Green Chemistry Challenge: 2005 Greener Synthetic Pathways Award (Merck & Co., Inc.)
Presidential Green Chemistry Challenge 2005 award winner, Merck, designed an atom-economical, energy- and water-saving, convergent synthesis for aprepitant, the active ingredient in Emend, a drug for nausea and vomiting.
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PRN 81-4: Label Improvement Program - Label Revisions to Accommodate New AOAC Methods of Chemical Analysis
This notice describes procedures EPA will use to ensure that pesticide label ingredient statements reflect percentages of ingredients determined by the most specific analytical techniques approved by the Association of Official Analytical Chemists (AOCA).
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Antimicrobial Testing Program
EPA tests certain antimicrobial products (hospital disinfectants and tuberculocides) to ensure that products in the marketplace are effective. See how we do this and find a list of tested products.
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Clean Water Access During Emergencies Webinar
EPA's ORD offers free public webinars on recent research results. Watch a pre-recorded webinar on proposed capability expansion of the Water on Wheels Cart, future deployments and its integration into Kentucky's Emergency Response Plan.