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: Daniela Banu (NCore)
 Ad Hoc Reporting

AQS # L011-0034
Daniela Banu (NCore)

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

MAY-30 0.7 0.773
DEC-24 0.7 0.632
FEB-04 0.7 0.672
DEC-25 0.7 0.807
DEC-04 0.6 0.732
JUL-20 0.6 0.522
JUL-21 0.6 0.703
FEB-05 0.6 0.773
DEC-07 0.6 0.671
MAY-31 0.6 0.793
 
Date
Max 1 Hour Average
 

SEP-21 1.340  
DEC-25 0.807  
MAY-31 0.793  
FEB-05 0.773  
MAY-30 0.773  
DEC-04 0.732  
DEC-08 0.730  
JUN-23 0.719  
JAN-17 0.704  
JUL-21 0.703  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2021.

Ozone Averages

Ozone data below are shown in Parts Per Billion (PPB)
Date
Max 8 Hour Average
1 Hour Average

APR-13 57 60
FEB-04 56 64
MAY-08 56 59
JAN-21 55 62
APR-16 54 61
APR-22 54 59
APR-15 52 59
APR-07 51 52
APR-08 51 53
MAY-20 50 52
 
Date
Max 1 Hour Average
 

FEB-04 64  
JAN-21 62  
APR-16 61  
APR-13 60  
APR-15 59  
APR-22 59  
MAY-08 59  
MAY-06 58  
JAN-05 57  
MAY-13 57  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
MAY-31 36.4  
AUG-24 24.2  
AUG-23 24  
JUN-18 21.8  
MAY-30 21.2  
SEP-01 20.3  
AUG-22 18.9  
SEP-02 18.4  
OCT-07 17.9  
AUG-25 17.1  
* = Value Not Available

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
AUG-23 77  
AUG-24 73.8  
SEP-01 67.2  
JUN-18 65.8  
AUG-22 61.4  
AUG-25 54.4  
SEP-02 54  
JUN-19 48  
OCT-07 46.1  
MAY-31 45.6  
* = Value Not Available

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
DEC-04 0.910 4.650
JAN-04 0.610 1.529
DEC-08 0.610 1.872
JAN-05 0.590 1.259
NOV-29 0.560 1.182
DEC-06 0.530 1.069
DEC-01 0.520 0.678
DEC-02 0.510 0.646
DEC-03 0.510 0.658
DEC-05 0.500 1.521

Date
Max 1 Hour Average
 
DEC-04 4.650  
DEC-08 1.872  
JAN-04 1.529  
DEC-05 1.521  
JAN-05 1.259  
NOV-25 1.187  
NOV-29 1.182  
DEC-06 1.069  
NOV-26 0.954  
DEC-07 0.869  
* = Value Not Available

Federal Air Quality Standard
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