Science & Technology
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AirData - Multiyear Tile Plot
This tool makes a time series plot for a specific location and time period. This tool displays daily air quality summary statistics for the criteria pollutants by monitor.
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Air Data - Daily Air Quality Tracker
This tool plots daily AQI values relative to the most recent 5-year average and the high/low since 2000 for a specific location and time period.
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Air Quality Index Daily Values Report
This report provides daily Air Quality Index values for the specified year and location. Read more about what's in this report
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Download Daily Data
This tool queries daily air quality summary statistics for the criteria pollutants by monitor. You can get data for specific monitors or all monitors in a city, county, or state.
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AirData - AQI Plot
This tool compares AQI values for multiple pollutants for a specific location and time period. This tool displays an entire year of AQI values - two pollutants at a time.
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Multiyear Tile Plot - for Exceptional Events Analysis
This tool makes a time series plot for a specific location and time period. This tool displays daily air quality summary statistics for the criteria pollutants by monitor.
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Concentration Map - for Exceptional Events Analysis
Make a map of daily concentrations over several days. The daily air quality can be displayed in terms of the Air Quality Index or in concentration ranges for certain PM species like organic carbon, nitrates, and sulfates.
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Single-year Tile Plot - for Exceptional Events Analysis
This tool plots daily AQI values for a specific location and time period. Each square or “tile” represents one day of the year and is color-coded based on the AQI level for that day. The legend tallies the number of days in each AQI category.
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Project Profile: Vir-Clar Farms
This project profile for Dane County Digester, located in Vienna, WI, includes information about the farm's anaerobic digestion system, feedstock, benefits, and recognition.
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Project Profile: Five Star Dairy Farm
This project profile for Dane County Digester, located in Vienna, WI, includes information about the farm's anaerobic digestion system, feedstock, benefits, and recognition.
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Project Profile: Clover Hill Dairy
This project profile for Dane County Digester, located in Vienna, WI, includes information about the farm's anaerobic digestion system, feedstock, benefits, and recognition.
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Project Profile: Butler Farms
This project profile for Butler Farms, located in Lillington NC, includes information about the farm's anaerobic digestion system, feedstock, benefits, and recognition.
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Sector-based PM2.5 and Ozone Benefit Per Ton Estimates
This page has benefit per-ton estimates that relate changes in emissions in PM2.5 precursor emissions from 17 industrial, area and mobile sectors and monetized benefits.
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U.S. Government’s International Methane Mitigation Activities: 2017 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2017)
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July 25, 2006 follow up to RFC: Cahaba River Biological and Water Quality Studies, Birmingham, Alabama
Submitted by Jefferson County Commission
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EPA response to RFC: Sterling's Texas City Facility
EPA response to the Request for Correction (RFC)
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RFC: Risk Assessment for Metan Sodium
Submitted on behalf of the Metam Sodium Alliance
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Withdrawal RFC: The Inventory of Sources and Environmental Releases of Dioxin-Like Compounds in the U.S.
Request for withdrawal after correction was made
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EPA Response to RFC 18002 concerning Chlorpyrifos
EPA Response to RFC 18002 regarding an EPA web-page concerning chlorpyrifos
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EPA Response to RFC 19003 regarding an EPA Blog concerning National Pollinators Week
EPA Response to RFC 19003 regarding an EPA Blog concerning National Pollinators Week