Science & Technology
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Indicators: Cyanotoxins (microcystin)
Algal toxins are toxic substances released by some types of algae (phytoplankton) when they are present in large quantities (blooms) and decay or degrade. High nutrient levels and warm temperatures often result in favorable conditions for algae blooms.
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About Regional Monitoring Networks
The purpose of the site is to provide the regional, state, and tribal partners with the technical information that we've developed in order to participate in the regional monitoring networks (RMNs).
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Data Management
Regional Monitoring Networks data management processes and conceptualizations
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Data Analysis
Regional Monitoring Network data analysis methods and usefulness over time.
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Regional Monitoring Networks - Streams
The purpose of the site is to provide the regional, state, and tribal partners with the technical information that we've developed in order to participate in the regional monitoring networks (RMNs).
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Regional Monitoring Networks - Wetlands
The purpose of the site is to provide the regional, state, and tribal partners with the technical information that we've developed in order to participate in the regional monitoring networks (RMNs).
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Questions BenMAP-CE Can Help Answer
BenMAP-CE can answer two different types of questions: what is the burden attributable to air pollution, and what are the benefits of reducing air pollution levels?
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AQS Memos - AQS Technical Note - NAAQS Reporting Issues for NO2 and SO2 NCore Reporting Issues for NOy and Trace-Level Gases
AQS Memos - AQS Technical Note - NAAQS reporting issues for NO2 and SO2 Nore reporting Issues for NOy and trace-level gases
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AQS Memos - Archive Data
AQS Memos - Archive Data
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AQS Ask the Experts Q&A November 2020
AQS Ask the Experts Q&A November 2020
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AQS Data Dictionary
Data Dictionary
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Fiscal Year 2024 DWSRF BIL LSLR Allotments
FY24 BIL LSLR allotments memorandum May 2024
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Grant Funding for Emissions from Wood Heaters - Closed Announcement FY 24
EPA’s Office of Air Quality Planning & Standards is soliciting applications from eligible entities to compete for financial assistance through the Targeted Airshed Grant Program.
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2020 DERA National Grants Competition - Closed Announcement FY 2020
EPA’s Office of Air Quality Planning & Standards is soliciting applications from eligible entities to compete for financial assistance through the Targeted Airshed Grant Program.
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American Indian Air Quality Training Program - Closed Announcement FY 2020
EPA’s Office of Air Quality Planning & Standards is soliciting applications from eligible entities to compete for financial assistance through the Targeted Airshed Grant Program.
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2019 & 2020 Targeted Airshed Grant Program- Closed Announcement FY 2020
EPA’s Office of Air Quality Planning & Standards is soliciting applications from eligible entities to compete for financial assistance through the Targeted Airshed Grant Program.
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Superfund Chemical Data Matrix (SCDM)
Learn about the Superfund Chemical Data Matrix (SCDM), a source for factor values and screening concentration benchmarks that can be applied when evaluating potential National Priorities List (NPL) sites using the Hazard Ranking System (HRS).
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Groundwater Cleanup Flexibilities
The groundwater cleanup approach may incorporate one or more flexible provisions that are found in existing Superfund laws, regulations, policy and guidance. The four provisions described here may be selected and adjusted to meet site-specific conditions.
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Analytical Methods, Fish Tissue Mass and Suitable Container Materials
Recommended aliquot weights, suggested method for analysis and appropriate container materials for various analyses.
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Sample Analysis
Sample analysis describes the process of testing a sample to determine the presence and concentrations of certain contaminants.