| Following
is a list of freeware that provides databases and electronic publications related to air quality. To
learn more about a particular item, click on the item name. To
download a software product or visit an interactive web site,
click on "download" or "view," respectively.
But first, please read our disclaimer and
permissions page if you haven't already done so.
AIRData
By US Environmental Protection Agency. The AIRData Web site gives you access to air pollution data for the entire United States. Want to know the highest ozone level measured in your state last year? Ever wonder where air pollution monitoring sites are located? Are there sources of air pollution in your town? You can find out here! AIRData produces reports and maps of air pollution data based on criteria that you specify.
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AIRNow
By Cross-Agency U.S. Government. The U.S. EPA, NOAA, NPS, tribal, state, and local agencies developed the AIRNow Web site to provide the public with easy access to national air quality information. The Web site offers daily AQI forecasts as well as real-time AQI conditions for over 300 cities across the US, and provides links to more detailed State and local air quality Web sites.
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AIRS Executive for Windows
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Contains air pollution data extracted from the AIRS database. Users can generate many different reports, charts, and maps. AIRS Executive for Windows has ambient air quality data from monitoring sites across the US, and pollutant emissions estimates for stationary sources regulated by the EPA. In addition, it includes ambient air quality data from about 50 nations that voluntarily provide data to the GEMS/AIR Programme sponsored by the United Nations World Health Organization. Managers, supervisors, and non-technical staff will find it helpful in obtaining summaries of air pollution data.
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Allowance Data Prepackaged Data Sets
By US Environmental Protection Agency, Acid Rain Program. Download allowances data for both the Acid Rain Program and the NOx Budget Trading Program.
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AP-42: Compilation of Air Pollutant Emission Factors (Mobile Sources)
By US Environmental Protection Agency, Office of Mobile Sources. "Compilation of Air Pollutant Emission Factors, Volume II: Mobile Sources" (commonly referred to as "AP-42") has two sections, I - Highway Vehicles and II - Nonroad Mobile Sources. Section I provides extensive information about the highway vehicle emission factor model, currently MOBILE5, and includes numerous tables of both values used in the model and "look-up tables" of emission factors produced by the model. Section II provides emission factor information, in the form of look-up tables, for a wide range of nonroad mobile sources (including agricultural equipment, construction equipment, lawn and garden equipment, aircraft and aircraft engines, locomotives, marine vessels, and miscellaneous types of equipment).
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Applicability Determination Index System
By US Environmental Protection Agency, Office of Enforcement and Compliance Assurances (OECA), Manufacturing, Energy and Transportation Division (METD). The Applicability Determination Index (ADI) is a database that contains memoranda issued by EPA on applicability and compliance issues associated with the New Source Performance Standards (NSPS), National Emissions Standards for Hazardous Air Pollutants (with categories for both NESHAP, Part 61, and MACT, Part 63), and chlorofluorocarbons (CFC). There are also separate categories for asbestos (Part 61, Subpart M) and woodstoves (Part 60, Subpart AAA). Recently issued determinations are added to the database on a quarterly basis.
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AQI Calculator: AQI to Concentration
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Select a criteria pollutant and enter the Air Quality Index (AQI); the associated pollutant concentration and health information are indicated.
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AQI Calculator: Concentration to AQI
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Select a criteria pollutant and enter the pollutant concentration in the specified units; the Air Quality Index and associated information are calculated.
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BEIS (Biogenic Emissions Inventory System)
By US Environmental Protection Agency, Office of Research and Development. Allows users to estimate hourly emissions of biogenic volatile organic compound and soil nitrogen oxide emissions for any county in the contiguous United States
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Carbon Counter
By The Climate Trust and Mercy Corps. Find out how much carbon dioxide you emit in your day-to-day life.
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E-GRID Spreadsheets Version 2002
By US Environmental Protection Agency, Acid Rain Program. The Emissions & Generation Resource Integrated Database (E-GRID) contains data on environmental characteristics of electric power generation. An integration of 12 different federal data bases, E-GRID provides air pollutant emission and resource mix information for thousands of individual power plants and generating companies. E-GRID provides emissions per unit of electricity, permitting direct comparisons of pollution levels from different power sources, and also shows, for individual plants, companies, states, and regions, the amount and percentage of power from different resources, such as coal, natural gas, nuclear, hydro, solar, and wind. E-GRID Spreadsheets Version is accessible by viewing spreadsheets. Requires MS Excel or comparable spreadsheet software.
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eGRID
By US Environmental Protection Agency, Acid Rain Program. The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive inventory of environmental attributes of electric power systems. The preeminent source of air emissions data for the electric power sector, eGRID is based on available plant-specific data for all U.S. electricity generating plants that provide power to the electric grid and report data to the U.S. government. eGRID contains air emissions data for nitrogen oxides, sulfur dioxide, carbon dioxide, and mercury.
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Electronic Data Reporting (EDR) Format
By US Environmental Protection Agency, Acid Rain Program. Version 2.2 of the Electronic Data Reporting (EDR) Format for the US EPA Acid Rain Program Part 75 rule revisions and Subpart H reporting. In PDF format.
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Emissions Prepackaged Data Sets
By US Environmental Protection Agency, Acid Rain Program. Download daily, hourly, or raw (EDR format) hourly emissions data by state and year. Unit level hourly data are available by month or quarter. Unit level daily data are available by quarter or year. Raw hourly emissions and heat input data are available in the electronic data report (EDR) format by year and quarter.
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Emissions Tracking System (ETS-FTP)
By US Environmental Protection Agency, Acid Rain Program. Allows submittal of Acid Rain Program and/or NOx Budget Trading Program quarterly reports to the Agency. ETS-FTP submits the reports to EPA's mainframe computer and retrieves the resulting feedback reports using File Transfer Protocol (FTP) over the Internet. ETS-FTP is designed to take advantage of Internet technology, in conjunction with SecuRemote security software, to seamlessly interface with existing security requirements for accessing EPA's computer resources.
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Envirofacts Warehouse
By US Environmental Protection Agency. Allows you to retrieve environmental information from EPA databases on Superfund sites, drinking water, toxic and air releases, hazardous waste and Biennial Reporting System data, water discharge permits, and grants information. Use online queries to retrieve data or generate maps of environmental information by choosing from several mapping applications available through EPA's Maps On Demand.
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Environmental Treaties and Resource Indicators (ENTRI)
By Center for International Earth Science Information Network (CIESIN). Find information about environmental treaties and national resource indicators relevant to nine global environmental issues: 1) land use/land cover change and desertification, 2) global climate change, 3) stratospheric ozone depletion, 4) transboundary air pollution, 5) conservation of biological diversity, 6) deforestation, 7) oceans and their living resources, 8) trade and the environment, and 9) population.
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Fire (Factor Information Retrieval Data System)
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). A database management system containing EPA's recommended emission estimation factors for criteria and hazardous air pollutants. FIRE includes information about industries and their emitting processes, the chemicals emitted, and the emission factors themselves. FIRE allows access to criteria and hazardous air pollutant emission factors obtained from the Compilation Of Air Pollutant Emission Factors (AP-42), Locating and Estimating (L&E) series documents, and the retired AFSEF and XATEF documents.
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Fire Wars
By NOVA Online. Video: How much do forest fires contribute to global warming?
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Global Warming Is a Waste
By US Environmental Protection Agency. This PowerPoint presentation uses graphics to explain the science and impacts of global climate change, and to show how WasteWise activities can help organizations reduce their impact on the global climate.
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GRID-Arendal Maps and Graphics Database
By United Nations Environment Programme. Graphics and maps that show pollution and atmosphere and climate change globally. Generally free for non-commercial use if source listed.
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Isotopic Composition of Selected Atmospheric Constituents
By National Institute of Standards and Technology. Contains over a thousand reported measurements of CH3D, 13CH4, and 14CH4 at sources and in tropospheric air. These isotopic data are useful to modelers who quantify the global or regional methane budgets by comparing the isotopic compositions of methane in ambient air with the isotopic compositions of the aggregate of flux-weighted sources.
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MetEd Modules
By Cooperative Program for Operational Meteorology, Education & Training (COMET). Modules of meteorology education courses as a webcast or web presentation. Topics include floods, wind, hazaroudous weather, forecasting, dust, dispersion modeling, and watersheds.
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Monitoring Data Checking (MDC) Software
By US Environmental Protection Agency, Acid Rain Program. Allows regulated industry and State agencies to enter, analyze, print and export electronic monitoring plan, certification and quality assurance data for the OTC NOx Budget Program and the Acid Rain Program.
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Nationwide Air Quality Forecast
By Cross-Agency U.S. Government. Nationwide daily air quality forecasts provided by State and local Air Agencies for over 300 major U.S. cities.
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NOAA Photo Collection
By US National Oceanographic and Atmospheric Administration (NOAA). More than 10,000 downloadable photos and images of oceans, the atmosphere, and the history of the pioneers who began the study of the environment in the United States.
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Ozone Air Quality Conditions
By Cross-Agency U.S. Government. Nationwide and regional real-time ozone air quality maps covering 46 US States and parts of Canada. These maps are updated daily every hour.
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Search the EPA Internet
By US Environmental Protection Agency. Search the US Environmental Protection Agency's (EPA's) web site.
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Source Classification Codes (SCC) Excel files
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). The Source Classification Codes and Area and Mobile Source (AMS) codes are available in several different formats. These codes are used as a primary identifier in EPA's AIRS Facility Subsystem (AFS), National Emission Trends (NET) database, Factor Information and Retrieval database (FIRE), and many State agency emissions data systems.
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SPECIATE
By US Environmental Protection Agency. SPECIATE is the EPA's repository of total organic compound (TOC) and particulate matter (PM) speciation profiles of air pollution sources. It includes more than 4,000 PM and TOC profiles.
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State Implementation Plans -- Region 5
By US Environmental Protection Agency, Region 5, Air and Radiation. Contains State Implementation Plans (SIPs) for each state in Region 5 (Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin). SIPs are a collection of regulations that explain how a State will clean up polluted areas under the Clean Air Act.
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Stratospheric Ozone Depletion
By US Environmental Protection Agency and Purdue University. Includes information and graphics depicting the ozone layer, how ozone is created, causes and effects of ozone depletion, the ozone hole, the greenhouse effect, and how an individual can help prevent ozone depletion. The program also examines applicable government legislation, including portions of the US Clean Air Act Amendments of 1990.
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Toxic Release Inventory (TRI) on Envirofacts
By US Environmental Protection Agency, Office of Pollution Prevention and Toxics (OPPT). Contains information on chemical emissions from almost 23,000 facilities in the United States. This information is updated each year from reports that the facilities provide to EPA. The purpose of the TRI is to provide information to citizens, community leaders, and officials about releases of toxic chemicals in their communities. Information from the TRI helps citizens and public officials hold companies accountable and make informed decisions about the management of toxic chemicals in their communities and about potential risks.
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Toxic Release Inventory (TRI) on TOXNET
By US Environmental Protection Agency, Office of Pollution Prevention and Toxics (OPPT). Contains information on chemical emissions from almost 23,000 facilities in the United States. This information is updated each year from reports that the facilities provide to EPA. The purpose of the TRI is to provide information to citizens, community leaders, and officials about releases of toxic chemicals in their communities. Information from the TRI helps citizens and public officials hold companies accountable and make informed decisions about the management of toxic chemicals in their communities and about potential risks.
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Toxic Release Inventory (TRI) PDF Files by State
By US Environmental Protection Agency, Office of Pollution Prevention and Toxics (OPPT). The Toxics Release Inventory (TRI) provides state reports about releases and transfers of chemicals and compounds. Each report contains overall state information regarding releases and transfers, a list of the top five chemicals released or transfered, off-site, in that state, and a list of the top ten facilities that released or transfered, off-site, the greatest amount of chemicals. The purpose of the TRI is to provide information to citizens, community leaders, and officials about releases of toxic chemicals in their communities. Information from the TRI helps citizens and public officials hold companies accountable and make informed decisions about the management of toxic chemicals in their communities and about potential risks.
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Ventilation Climate Information System
By US Department of Agriculture, Forest Service. Assesses values of air quality and visibility at risk from wildland fires in the US.
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WebFIRE
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). This Internet version of FIRE provides access to the Agency’s air emissions factors information.
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