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.
Data
AirData presents annual summaries of air pollution data from two
EPA databases:
AQS (Air Quality System) database
provides air monitoring data - ambient concentrations of criteria
and hazardous air pollutants at monitoring sites, primarily
in cities and towns.
NEI (National Emission
Inventory) database provides estimates of annual emissions of criteria
and hazardous air pollutants from all types of sources. The NEI
database in 2002 replaced two separate EPA databases for emissions
of criteria air pollutants (National Emission Trends, or NET) and
hazardous air pollutants (National Toxics Inventory, or NTI).
We extract data periodically from these databases for use in AirData.
The database status page has details.
Features
Here are the types of information you can find at the AirData Web
site:
Reports and Maps display air pollution data in tabular and graphical formats.
Each report or map has options for customizing its content,
and each one can produce a data file that you may download to
your computer. Reports and Maps are the primary focus of the
AirData Web site
The Monitor
Data Queries section of the AirData Web site
has more detailed descriptions of air monitors, and
annual summary data for more pollutants and years than standard
AirData reports and maps. Monitor Data Queries uses data extracted
from the AQS database.
About AirData describes the kinds of air pollution data included in AirData
reports and maps, and the EPA databases from which we obtain
the data.
How To Select... explains
how to choose selection criteria for AirData reports and maps.
Contacts gives the names,
addresses, and phone numbers of people in EPA and state environmental
agencies to contact about air pollution data.
Limitations
The AirData Web site does have some limitations.
It cannot tell you where the air is cleanest, and it does not include
detailed hourly or daily measurements of air pollution. AirData
has annual summary data only.
The capability to run Java applets and Flash™ movies in your
browser is desirable, but not essential. These capabilities enable optional features of the AirData
Web site.
Other considerations: ·Use of cookies - temporary cookies only, nothing saved on your computer ·Accessibility - maps are inherently visual, may be inaccessible to some