Current NAAQS Status in Louisville

This table shows the status of the Louisville metropolitan statistical area in attainment of national ambient air quality standards (NAAQS).

Standard Averaging Time Attainment Status
Carbon Monoxide
9 ppm 8-hour Attainment
35 ppm 1-hour Attainment
Lead
0.15 µg/m3 Rolling 3-Mo Average Attainment
Nitrogen Dioxide
0.053 ppm Annual Average Attainment
0.10 ppm 1-hour Attainment
Ozone
0.070 ppm 8-hour Nonattainment
Particulate Matter (PM10)
150 µg/m3 24-hour Attainment
Particulate Matter (PM2.5)
12.0 µg/m3 Annual Average Attainment
35 µg/m3 24-hour Attainment
Sulfur Dioxide
0.75 ppm 1-hour Attainment
0.5 ppm 3-hour Attainment

 

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