Science & Technology
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SW-846 Test Method 9071B: n-Hexane Extractable Material (HEM) for Sludge, Sediment, and Solid Samples
procedure used to quantify low concentrations of oil and grease in soil, sediments, sludges, and other solid materials amenable to chemical drying and solvent extraction
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SW-846 Test Method 9095B: Paint Filter Liquids Test
method used to detect the presence of free liquids in a representative sample of waste to determine compliance with 40 CFR 264.314 and 265.314
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SW-846 Test Method 8327: Per-and Polyfluoroalkyl Substances (PFAS) by Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Method procedures written and performed by analyst trained in the basic principles of chemical analysis and in the use of the subject technology.
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SW-846 Test Method 3512: Solvent Dilution of Non-Potable Waters
Method procedures written and performed by analyst trained in the basic principles of chemical analysis and in the use of the subject technology.
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SW-846 Test Method 1311: Toxicity Characteristic Leaching Procedure
the TCLP is designed to determine the mobility of both organic and inorganic analytes present in liquid, solid, and multiphasic wastes
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Water Quality Standards Regulations: Pueblo of Nambe
Information related to Water Quality Standards for Pueblo of Nambe.
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IRIS Descriptions of Organs/Systems
A list of organ systems/lifestage definitions that provide background to the grouping in the advanced search portion of the website.
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IRIS Bimonthly Public Meeting (Jun 2014)
On June 25-27, 2014, EPA hosted a public meeting/webinar, to provide an opportunity for the public to give input and participate in an open discussion regarding several IRIS chemical assessments of Hexavalent Chromium (Cr(VI)) and Inorganic Arsenic (iAs).
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Strengthened Practices for Peer Review
This document focuses on the rigor of the process for identifying and evaluating actual or potential conflicts of interest for contractor-managed peer reviews of EPA.
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U.S. EPA. 2000. Science Policy Council Handbook: Peer Review
The goal of the Peer Review Policy and this Handbook is to enhance the quality and credibility of Agency decisions by ensuring that the scientific and technical work products underlying these decisions receive appropriate levels of peer review by independe
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NCEA 2009. Policy and Procedures for Conducting IRIS Peer Reviews
The purpose of this Standard Operating Procedure is to explain EPA's process for independent external peer review of draft human health assessments prepared under EPA’s IRIS Program.
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Supporting Documents to Recent IRIS Program Developments
These documents support EPA's announcement about improving the quality and process of IRIS program developments.
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Volunteer Registration Forms
These forms are provided online for volunteers consent to participate in an EPA clinical study at the EPA Research Facility in North Carolina.
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Clean Air Act (CAA) Program Delegation Status for Other Rules in Louisiana
Other Rules in Louisiana
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Air Topics
Information about indoor and outdoor air quality, air monitoring and air pollutants.
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Safer Choice Criteria for Fragrance-Free Products
Safer Choice has developed criteria for fragrance-free products to allow them to add the fragrance-free notation with the Safer Choice label.
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CHP Project Development Steps
Learn about the steps involved with CHP project development including, qualification, level 1 feasibility analysis, level 2 feasibility analysis, procurement, and operations and maintenance.
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Acid Rain
The causes of acid rain, how acid rain affects our environment and our health, and what regulatory actions have been put in place to reduce the pollutants that cause acid rain.
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eGRID2020 Corrections and Revisions
Describes corrections and revisions for updated eGRID data
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Notice of Data Availability - Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone NAAQS
EPA is providing an opportunity to review ozone transport modeling data for the 2015 ozone NAAQS