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Air Pollution Data Sources

This page provides links to data systems, maps, and additional information.

Air quality data reflects the amount of pollution and other substances present in the atmosphere measured by monitors throughout the nation.

Emissions data reflects the amount of pollutants and other substances being discharged from facilities, vehicles, and other activities that release pollution into the atmosphere.


Air Quality Data

Below is a list of systems with information about air quality.  Each entry is a link followed by a description of the system and the intended audience.  At the end of this section is a table providing an at-a-glance comparison of the systems.

Comparative Tables

The following tables provide a comparison of the air quality sytems organized by intended audience.  A system targeted to the general public contains information presented in a way that can be understood without detailed knowledge of the regulatory or monitoring programs.  Technical users are engineers, analysts, or those employed by air quality control agencies that need more detailed information.  Researcher systems are those that provide for the downloading of large amounts of data for analysis elsewhere.

Air quality information is collected and summarized on different time scales.  The tables below indicate whether the system has raw data (the most detailed – hourly for continuous monitors), daily summary, or annual summary data.  It gives the years of data the system contains.  The substances available are also indicated in order of the most requested.  Finally the types of outputs available are noted.  A full circle indicates the system has this information or feature and an empty circle indicates it has some of the listed information.


General Public

System

Level of Detail

Time

Substances

Output Types

 

Raw

Daily

Annual

Time range of most detailed data

Ozone + PM2.5

Other Criteria

Toxics

PM2.5 Adj. Spec

PM2.5 Unadj. Spec

Other

Tables/ Charts

Maps

AirCompare

 

2001 2010

 

 

 

 

AirData

 

1980 - present

 

 

 

 

AirNow

 

1999 Present

 

 

 

 

A full circle indicates the system has this information or feature and an empty circle indicates it has some of the listed information.


Technical Users

System

Level of Detail

Time

Substances

Output Types

 

Raw

Daily

Annual

Time range of most detailed data

Ozone + PM2.5

Other Criteria

Toxics

PM2.5 Adj. Spec

PM2.5 Unadj. Spec

Other

Tables/ Charts

Maps

AirTrends

 

 

1990 – 2010

 

 

 

AQS

1994 Present

 

 

CASTNET

 

1987 - 2011

 

 

 

 

 

A full circle indicates the system has this information or feature and an empty circle indicates it has some of the listed information.


Researchers

System

Level of Detail

Time

Substances

Output Types

 

Raw

Daily

Annual

Time range of most detailed data

Ozone + PM2.5

Other Criteria

Toxics

PM2.5 Adj. Spec

PM2.5 Unadj. Spec

Other

Tables/ Charts

Maps

AQS Data Page

 

 

1993 2011

 

 

 

 

AQS Data Mart

1980 Present

 

 


Emissions Data

Below is a list of systems with information about air emissions.  Each entry is a link followed by a description of the system and the intended audience.  At the end of this section is a table providing an at-a-glance comparison of the systems.

Comparative Tables

The following tables provide a comparison of the emissions data sytems organized by intended audience.  A system targeted to the general public contains information presented in a way that can be understood without detailed knowledge of the regulatory or monitoring programs.  Technical users are engineers, analysts, or those employed by air quality control agencies that need more detailed information.  Researcher systems are those that provide for the downloading of large amounts of data for analysis elsewhere.

Emissions information is collected and summarized on different time scales.  The tables below indicate whether the system has raw data (the most detailed – hourly for continuous monitors), daily summary, or annual summary data.  It gives the years of data the system contains.  The substances available are also indicated in order of the most requested.  Finally the types of outputs available are noted.  A full circle indicates the system has this information or feature and an empty circle indicates it has some of the listed information.


General Public

System

Level of Detail

Time

Substances

Output Types

 

Raw

Daily

Annual

Time range of
most detailed data

Criteria

Toxics

Other

Tables/
Charts

Maps

Air
Emission
Sources:
Where
You Live

 

 

2005

 

 


Technical Users

System

Level of Detail

Time

Substances

Output Types

 

Raw

Daily

Annual

Time range of
most detailed data

Criteria

Toxics

Other

Tables/
Charts

Maps

Greenhouse
Gas
Emissions

 

 

1990 - 2009

 

 

 

NATA

 

 

1996, 1999, 2002, 2005

 

 



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