Science & Technology
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What is the difference between parameter codes 88101 and 88502 for PM2.5 monitors?
The 88101 monitors include both manually operated Federal Reference Methods (FRMs) and automated Federal Equivalent Methods (FEMs) and each are used for determining compliance with the PM2.5 standards. The 88502 monitors are “FRM-like” but are not used for regulatory purposes. Both 88101 and 88502 monitors are used for reporting daily…
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EPA Releases Peer Review Comments on White Paper for Asbestos Part 2 Risk Evaluation under TSCA
On December 28, 2023, EPA released comments from the letter peer review for its 2023 white paper presenting the Agency’s quantitative approach for the human health risk assessment for part 2 of the TSCA risk evaluation for asbestos.
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Meeting Materials for the October 24-27, 2017 Scientific Advisory Panel
Meeting Materials for the October 24-27, 2017 Scientific Advisory Panel on Physiologically-based Pharmacokinetic Modeling
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Meeting Materials for the October 2, 2017 Virtual Meeting
Meeting Materials for the October 2, 2017 Virtual Meeting
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Development of Community Water System Drinking Water Intake Percent Cropped Area Adjustment Factors for use in Drinking Water Exposure Assessments: 2014 Update
This document presents a history of the development and use of PCAs as used by the Office of Pesticide Programs (OPP), and the process used for calculating CWS-DWI specific PCAs.
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Presidential Green Chemistry Challenge: 2010 Small Business Award
Presidential Green Chemistry Challenge 2010 award winner, LS9, engineered microorganisms to convert fermentable sugars selectively to alkanes, olefins, fatty alcohols, or fatty esters, each in a single-unit biorefinery.
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Presidential Green Chemistry Challenge: 2001 Academic Award
Presidential Green Chemistry Challenge 2001 award winner, Professor Chao-Jun Li, uses metal catalysts in water to carry out chemical reactions that used to need both an oxygen-free atmosphere and hazardous organic solvents.
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Presidential Green Chemistry Challenge: 2015 Designing Greener Chemicals Award
Presidential Green Chemistry Challenge 2015 award winner, Hybrid Coating Technologies/Nanotech Industries, ...
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Presidential Green Chemistry Challenge: 2006 Greener Synthetic Pathways Award
Presidential Green Chemistry Challenge 2006 award winner, Merck, discovered the asymmetric catalytic hydrogenation of unprotected enamines to make beta-amino acids. Merck applied this to synthesize sitagliptin (Januvia).
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Presidential Green Chemistry Challenge: 2011 Designing Greener Chemicals Award
Presidential Green Chemistry Challenge 2011 award winner, Sherwin-Williams, developed water-based acrylic alkyd paints with VOCs that can be made from recycled soda bottle (PET), acrylics, and soybean oil.
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Risk Evaluation for Octamethylcyclotetra- siloxane (D4)
EPA granted the manufacturer request for risk evaluation for Di-isodecyl phthalate (DIDP) (1,2-Benzene- dicarboxylic acid, 1,2- diisodecyl ester) in December 2019 and the chemical is currently undergoing risk evaluation.
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EPA Calls for Nominations of Peer Reviewers for Formaldehyde
EPA is calling for nominations of candidates to serve as ad hoc reviewers to EPA's Science Advisory Committee on Chemicals (SACC) to consult on EPA's risk evaluation of formaldehyde.
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State Implementation Plan (SIP) Attainment Demonstration Guidance
how to prepare attainment demonstrations for National Ambient Air Quality Standards (NAAQS) and the Regional Haze Rule using air quality modeling and other relevant technical analyses.
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Green Street, Green Jobs, Green Towns (G3) Webcasts, Podcasts, Blogs, and Listservs
This webpage provides links to green infrastructure, sustainability, and resiliency webcasts, blogs, listservs, podcasts, articles, and press releases.
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Unacceptable and Acceptable Substitutes Tables
Landing page for substitute tables.
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Indoor airPLUS Mobile App RSS Podcast feed XML file
XML file linked from Indoor airPLUS Builder App containing RSS podcast feed
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Demographics Proximity Tool
Human exposure modeling relates pollutant concentrations in the larger environmental media to pollutant concentrations in the immediate exposure media.
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Compliance Monitoring Data Portal
A framework for streamlining water quality assessment and reporting by integrating existing systems.
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Water Quality Standards Regulations: Pueblo of Sandia
Information related to Water Quality Standards for Pueblo of Sandia.
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Sampling Schedule Calendar
Sampling calendars for ambient monitoring schedules