Science & Technology
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Occurrence of contaminants of emerging concern (CECs) in the South Platte
The widespread occurrence of natural and synthetic organic chemicals in surface waters can cause ecological risks and human health concerns.
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Ambient Monitoring Technology Information Center (AMTIC)
This site contains information on ambient air quality monitoring programs, monitoring methods, quality assurance and control procedures, and federal regulations related to ambient air quality monitoring.
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Harmful Algal Blooms (HABs) in Water Bodies
Technical, scientific, policy, regulatory, statutory, guidance and research information about cyanobacterial harmful algal blooms and cyanotoxins in drinking water and water bodies.
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Computational Toxicology and Exposure Online Resources
EPA's Safer Chemicals program produces a variety of computational tools to assist users in decision-making, researching, and evaluating chemical information. These tools offer a wealth of chemistry, toxicity, and exposure data that is publicly accessible.
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Toxic Release Inventory Training Course (TRI) (2015 EIC)
Focusing on air releases, explore tried and true access points along with new ways to access the data including the new P2 tool (currently available) and the TRI Analyzer tool (schedule to go public summer 2015)
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EPA's New Emissions Factor Development Procedures (2015 EIC)
Steps through the new procedures and how to access emissions data collected electronically and new procedures that will allow people to create their own specialized emissions factor.
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Session 4 - International Emission Inventories (2017 EIC)
Papers and Presentation during the 2017 International Emission Inventory conference.
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Session 5 - Intersection Between Inventories and Life-Cycle Emissions Impacts (2017 EIC)
Papers and presentations submitted during the 2017 Emission Inventory conference
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Session 10 - Speciated Emissions Data and Their Use (2015 EIC)
Papers and presentations submitted at the 2015 Emissions Inventory confernce
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Pesticide Program Dialogue Committee Meeting May 18-19, 2016
View meeting materials and the transcript of the May 2016 PPDC meeting.
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2014 National Emissions Inventory (NEI) Plan
The NEI is prepared at least every three years by the U.S. EPA based primarily upon emissions estimates and emissions model inputs provided by State, Local and Tribal (SLT) air agencies, and supplemented by data developed by the EPA.
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Training on EPA's Nonpoint Source Emissions Inventory Tools (2015 EIC)
The training will include an overview of the tools and a discussion of the procedures used and assumptions made to estimate emissions
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Volume 1 - Introduction
An introduction to the Emissions Inventory Improvement Program (EIIP) materials. Describes EIIP development, use of EIIP, inventory staff training, and planning, development, documentation, and reporting of inventories.
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Volume 6 - Quality Assurance Procedures and DARS Software
Quality Assurance and Quality Control materials for air emissions from the Emissions Inventory Improvement Program (EIIP).
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Session 1 - EI Preparation for Modeling Including Projections (2015 EIC)
Papers and presentations presented at the 2015 International Emissions Conference
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Urban River: Merrimack River
Information on the efforts of the US EPA, the Commonwealth of Massachusetts, the municipalities within the Merrimack River and nongovernmental organizations to improve the water quality of the Merrimack River.
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Air Quality System (AQS)
The Air Quality System (AQS) is EPA's repository of ambient air quality data. AQS stores data from over 10,000 monitors, 5000 of which are currently active.
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AQS Tech Note POC 6-28-13
AQS Tech Note POC 6-28-13
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CMAQ Dynamic Evaluation and Trend Analysis
Dynamic evaluation is the method of comparing the model simulated change in air pollution levels due to changes in emissions or meteorology to observed changes.
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Understanding Hypoxia in the Gulf Using CMAQ
The coupled EPIC/CMAQ modeling system simulated impacts on air and land quality of different land use changes driven by potential energy and agricultural management decisions. Linking these results to watershed models allows for analysis of hypoxia events.