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 2023


CO Averages

CO data below are shown in Parts Per Million (PPM)
Date
Max 8 Hour Average
1 Hour Average
JAN-18 1.1 1.600
JAN-17 1.1 1.400
JAN-16 1.0 1.200
DEC-31 0.9 1.200
APR-14 0.8 1.400
JUL-03 0.8 1.000
MAY-24 0.8 1.100
JUN-20 0.8 1.200
JAN-12 0.7 1.200
JUN-30 0.7 1.300
 
Date
Max 1 Hour Average
 
FEB-07 2.100  
JAN-18 1.600  
JAN-17 1.400  
APR-14 1.400  
JUN-30 1.300  
JAN-12 1.200  
JAN-16 1.200  
APR-27 1.200  
JUN-20 1.200  
DEC-31 1.200  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
Date
Max 1 Hour Average
 
JAN-17 67.1  
JAN-18 64.6  
JAN-12 61.3  
JAN-16 56.4  
FEB-13 54.2  
OCT-23 53.3  
DEC-31 51.5  
JAN-08 51.3  
MAY-05 51.2  
MAR-10 48.8  

Ozone Averages

Ozone data below are shown in Parts Per Billion (PPB)
This site did not monitor Ozone during 2023.

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 2023.

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
This site did not monitor PM 10 during 2023.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor SO2 during 2023.
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