Tools and Data Products

Air Quality Related Values (AQRV) Summaries top
Visibility Summary
Visibility Summary
Scenic vistas are diminished by haze that causes discoloration, loss of texture, and diminished visual range, and some of the pollutants that form haze have been linked to serious health effects and environmental damage. These reports summarize visibility in Class I areas that are protected and regulated by the Regional Haze Rule.
Ozone Summary
Ozone Summary
Elevated ozone concentrations adversely affect sensitive vegetation and ecosystems, including forests, parks, wildlife refuges, and wilderness areas. This graphical report summarizes ozone trends as measured by the EPA ozone monitoring network.
Wet Deposition
Wet Deposition Summary
Deposition of sulfur and nitrogen compounds contributes to the acidification and eutrophication of sensitive terrestrial and aquatic ecosystems. This graphical report summarizes trends in wet deposition data from the NADP National Trends Network (NTN).
Dry Deposition
Dry Deposition Summary
About half of the acidity in the atmosphere falls back to earth through dry deposition. This graphical report summarizes the sulfur and nitrogen composition of dry deposition data from the EPA's Clean Air Status and Trends Network (CASTNet).
Data top
Database Query Wizard
Database Query Wizard
Use a variety of interactive tools and applications to visualize, explore, filter, and download raw and aggregated air quality data and relevant metadata from the integrated database in a variety of customizable formats.
IMPROVE Data
IMPROVE Data
These express tools provide access to the full collection of data and metadata from the Interagency Monitoring of Protected Visual Environments (IMPROVE) program. The IMPROVE program monitors pollutants and generates metrics to identify sources and causes of regional haze at all Class 1 Areas in the U.S.
U.S. Forest Service Water Quality Data
U.S. Forest Service Water Quality Data
Explore air-quality-related water chemistry data collected and managed by the U.S. Forest Service. These data have been collected on Forest Service lands or by the Forest Service on adjacent lands, and are used to help assess air pollution impacts to sensitive waters in Federally-protected areas.
Metadata top
Monitoring Site Browser
Monitoring Site Browser
View the locations of monitoring sites and explore monitoring site metadata for all of the available ground-based monitoring networks in the FED database using an interactive map.
Dataset Index
Dataset Index
Search and explore the entire collection of air and water quality datasets currently stored in the FED database. See details for each dataset such as the parameters it contains, the data flags used, and its monitoring site locations on a map.
Dataset Explorer
Dataset Explorer
View low-level and comprehensive details about each dataset stored in the FED database. Download each dataset's raw data, see its monitoring locations on a map, and view details about the parameters it contains.
General Metadata
General Metadata
These express tools provide access to detailed metadata about datasets, networks, sites, parameters, methodologies, data flags, agencies, and other key entities that are referenced by the data products and air quality datasets provided on the FED website.
Federal Lands List
Federal Lands List
An interactive list of lands that are owned or administered by the Federal government, such as national parks, wildlife refuges, wilderness areas, scenic rivers, historic parks, military reservations, and other public domain lands.
Air Quality Glossary
Air Quality Glossary
An extensive glossary of common air quality-related phrases, terms, and codes that may be encountered while browsing the Federal Land Manager Environmental Database (FED) website or exploring its data products.
Visualization top
AQRV Tools
AQRV Tools
An Air Quality Related Value (AQRV) is a scenic, cultural, physical, biological, ecological, and/or recreational resource in one or more federal areas that may be adversely affected by a change in air quality. These express tools help analyze the impacts to AQRVs for Federal Class I Areas.
Annual Pollutant Summary
Annual Pollutant Summary
This interactive tool provides access to data and charts based upon the EPA Annual Summary dataset, which is a compilation of annual averages and other metrics for the pollutants submitted to the EPA Air Quality System (AQS). It includes criteria air pollutants (CAPs), hazardous air pollutants (HAPs), urban air toxics, fine (PM2.5) aerosols, and other pollutants that affect visibility and air quality.
Haze Analysis
Haze Analysis
These express tools below provide a variety of charts and graphs for analyzing Regional Haze Rule (RHR) metrics from the IMPROVE program. The IMPROVE program monitors pollutants and generates metrics to identify sources and causes of regional haze at all Class 1 Areas in the U.S.
Ambient Data Tools
Ambient Data Tools
The tools below provide a variety of graphical products for exploring and analyzing haze and visibility data from the IMPROVE network, as demonstrated by speciated composition and long-trend trends in aerosol light extinction at IMPROVE monitoring sites that represent federal Class 1 Areas.
IMPROVE Q/A
IMPROVE Q/A
The tools below provide a variety of graphical products for exploring and analyzing raw aerosol data from the IMPROVE network. The tools are designed to facilitate quick, high-level assessments of raw IMPROVE aerosol data at the network, regional, and individual monitoring site level.
Ozone: High4 5-Year Average Explorer
Ozone: High4 5-Year Average Explorer
This graphical and tabular report summarizes the 5-year and by-year average 4th Highest Daily 8-hr Avg. Max. Ozone Concentrations at EPA ozone sites. A time series graph and data table are displayed.
Ozone: W126 5-Year Average Explorer
Ozone: W126 5-Year Average Explorer
This graphical and tabular report summarizes the 5-year and by-year average W126 Ozone Exposure Indexes at EPA ozone sites. A time series graph and data table are displayed.
Imagery top
Live Webcams
Live Webcams
These webcams are useful for seeing the effects of air pollution on visibility. Take note of whether or not it appears that air pollution is affecting the quality of the respective vistas.
Visibility Photographs
Visibility Photographs
Cameras are used at a number of IMPROVE monitoring sites. Images from monitoring sites with over five years of data were selected to capture the range or "spectrum" of visual conditions at each site.
Resources top
Browser Diagnostics
Browser Diagnostics
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