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: Presidents' Drive Near Road
 Ad Hoc Reporting

AQS # L095-0011
Presidents' Drive Near Road

10 Highest Daily Averages for Year 2025


CO Averages

CO data below are shown in Parts Per Million (PPM)
Date
Max 8 Hour Average
1 Hour Average

MAR-07 0.9 1.100
FEB-27 0.8 1.000
FEB-26 0.8 0.900
MAR-08 0.8 0.900
FEB-22 0.7 0.700
FEB-23 0.7 0.900
APR-23 0.7 0.900
JAN-04 0.7 0.700
APR-17 0.7 1.200
FEB-25 0.7 0.900
 
Date
Max 1 Hour Average
 

APR-17 1.200  
MAR-07 1.100  
JAN-05 1.000  
FEB-27 1.000  
APR-14 1.000  
APR-21 1.000  
FEB-23 0.900  
FEB-25 0.900  
FEB-26 0.900  
FEB-28 0.900  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
Date
Max 1 Hour Average
 

MAR-07 52.7  
JAN-08 44.5  
FEB-05 43.2  
MAR-19 42.7  
FEB-27 42.1  
FEB-28 40.8  
MAR-20 39.9  
JAN-27 39.7  
MAR-11 39.7  
MAR-08 38.9  

Ozone Averages

Ozone data below are shown in Parts Per Billion (PPB)
This site did not monitor Ozone during 2025.

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
MAY-03 16.7  
MAR-08 15.8  
MAR-07 15.6  
MAY-07 15.4  
FEB-26 12.8  
MAR-24 12.6  
MAR-25 12.6  
APR-22 12.5  
FEB-27 12.4  
MAR-09 12.1  
* = Value Not Available

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
This site did not monitor PM 10 during 2025.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor SO2 during 2025.

Federal Air Quality Standard
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