Highest Readings by Year
Air Quality Icon

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 2023


CO Averages

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

DEC-31 0.8 0.805
JAN-17 0.7 0.769
JAN-16 0.7 0.649
JAN-12 0.6 0.821
JAN-01 0.6 0.755
JAN-18 0.6 0.802
JAN-20 0.6 0.634
APR-14 0.5 0.754
DEC-02 0.5 0.516
DEC-30 0.5 0.698
 
Date
Max 1 Hour Average
 

MAY-23 0.948  
JAN-12 0.821  
DEC-31 0.805  
JAN-18 0.802  
JAN-17 0.769  
JAN-01 0.755  
APR-14 0.754  
DEC-30 0.698  
JAN-13 0.697  
JAN-11 0.674  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2023.

Ozone Averages

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

MAY-04 67 73
MAY-01 62 74
MAY-05 62 67
MAR-01 60 75
MAR-08 58 63
MAR-10 56 61
MAY-10 56 62
JAN-11 55 60
FEB-26 54 61
MAR-09 54 56
 
Date
Max 1 Hour Average
 

MAR-01 75  
MAY-01 74  
MAY-04 73  
MAY-05 67  
JUL-11 64  
MAR-08 63  
SEP-18 63  
MAY-10 62  
DEC-05 62  
FEB-26 61  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
OCT-03 36.7  
JAN-01 31.1  
JUL-24 21.2  
JUL-05 20.9  
JUL-25 20.2  
JUL-20 19.1  
AUG-22 18  
JUL-11 17.5  
JUL-23 17.3  
JUL-10 17.2  
* = Value Not Available

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
AUG-22 62.7  
JUL-24 62.6  
JUL-20 62.5  
OCT-03 61.6  
JUL-25 57.7  
JUL-11 54.5  
JUL-10 53.3  
JUL-23 51.1  
JUL-05 45.4  
JUL-21 45.1  
* = Value Not Available

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
OCT-03 2.110 3.435
OCT-12 1.170 1.763
OCT-02 1.110 1.631
OCT-08 1.100 3.514
OCT-13 1.100 1.689
DEC-19 0.980 1.882
DEC-31 0.980 1.204
MAR-01 0.970 1.438
MAY-04 0.970 1.426
DEC-06 0.970 1.495

Date
Max 1 Hour Average
 
OCT-08 3.514  
OCT-03 3.435  
DEC-19 1.882  
OCT-12 1.763  
DEC-05 1.745  
JAN-15 1.727  
OCT-13 1.689  
OCT-02 1.631  
FEB-26 1.557  
JUL-04 1.530  
* = Value Not Available

Federal Air Quality Standard
Go To Top