CO (42101) data for 1991

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Organisation

U.S. Envioronmental Protection Agency Air Quality System

The Air Quality System (AQS) contains ambient air pollution data collected by EPA, state, local, and tribal air pollution control agencies from over thousands of monitors. AQS...

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CO (42101) data for 1991

Contains CO (42101) data throughout the U.S. for the year 1991

Data and Resources

co-1991url
Resource pointing to https://aqs.epa.gov/aqsweb/airdata/daily_42101_1991.zip
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Additional Info

Field	Value
Last Updated	May 19, 2025, 15:42 (UTC)
Created	May 19, 2025, 15:42 (UTC)
file-size	3,663 KB
file_type	CSV
last-update	As of 2024-08-20
parameter-type	CO (42101)
rows	338,277 Rows
year	1991