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Metro Newsroom

Exceptional Events in 2007 Affecting Air Quality Measurements

Tuesday January 8, 2008

The Louisville Metro Air Pollution Control District routinely reviews any air quality monitoring data showing an exceedance of an ambient air quality standard set by the U.S. Environmental Protection Agency.

The EPA considers an exceptional event to have occurred if the air quality is affected by a natural event or human activity that is unlikely to recur at a particular location and is not reasonably controllable or preventable.

Examples of exceptional events include structural and wildland fires and fireworks displays. The District “flags” data so that the public and the EPA may be aware that these “flagged” high monitored values are not the norm and were influenced by an exceptional event.

The District then prepares a report on the event for review by the public and the EPA.

The District is providing this notice that it has prepared exceptional event reports for three events in 2007 and is providing a 30-day opportunity for the public to review and comment on these reports.

Here are links to relevant documents.  Each link opens in a new window. 

Questions or comments should be directed to Mr. Larry Garrison, Environmental Supervisor, Ambient Monitoring Unit, Louisville Metro Air Pollution Control District, 850 Barret Ave., Louisville, KY 40204, Telephone (502) 574-7278.

E-mail Mr. Garrison