Highest Readings by Year
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Air Quality Monitoring

Highest Readings by Year
Air Resource Management
Data on this page are updated daily when complete data are received.

It is important to note that the ozone monitoring data less than three months old viewed on this website have generally not been verified and checked for quality assurance in accordance with federal requirements.

 More Details about: Perimeter Near-road
 Ad Hoc Reporting

AQS # L086-0035
Perimeter Near-road

10 Highest Daily Averages for Year 2021


CO Averages

CO data below are shown in Parts Per Million (PPM)
Date
Max 8 Hour Average
1 Hour Average
DEC-24 0.8 0.900
DEC-25 0.7 1.000
DEC-26 0.7 0.900
DEC-31 0.4 0.700
NOV-02 0.4 0.500
DEC-28 0.4 0.800
DEC-17 0.4 0.600
OCT-05 0.4 0.700
OCT-11 0.4 0.600
DEC-30 0.4 0.300
 
Date
Max 1 Hour Average
 
DEC-25 1.000  
DEC-24 0.900  
DEC-26 0.900  
DEC-28 0.800  
OCT-05 0.700  
OCT-12 0.700  
DEC-27 0.700  
DEC-31 0.700  
SEP-24 0.600  
OCT-04 0.600  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
Date
Max 1 Hour Average
 
JAN-07 53.7  
DEC-28 52.9  
JAN-05 51.1  
APR-07 50  
DEC-01 49.4  
NOV-29 48.6  
NOV-30 47.9  
DEC-04 47.8  
DEC-10 47.4  
MAR-24 46.2  

Ozone Averages

Ozone data below are shown in Parts Per Billion (PPB)
This site did not monitor Ozone during 2021.

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
This site did not monitor PM 2.5 during 2021.

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
This site did not monitor PM 10 during 2021.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor SO2 during 2021.
Federal Air Quality Standard
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