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: St. Marks Wildlife Refuge
 Ad Hoc Reporting

AQS # G129-0001
St. Marks Wildlife Refuge

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

APR-17 0.9 1.075
MAY-10 0.8 0.970
MAY-11 0.6 0.965
SEP-10 0.5 0.497
MAY-13 0.4 0.967
MAR-21 0.4 0.794
MAY-16 0.4 0.443
JUN-05 0.4 0.386
SEP-09 0.4 0.515
JUL-26 0.3 0.337
 
Date
Max 1 Hour Average
 

APR-17 1.075  
MAY-10 0.970  
MAY-13 0.967  
MAY-11 0.965  
MAR-21 0.794  
FEB-07 0.765  
SEP-09 0.515  
SEP-10 0.497  
MAR-23 0.486  
MAY-16 0.443  

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

APR-19 62 65
MAY-04 61 64
MAY-01 58 61
MAY-05 57 59
MAY-25 56 59
NOV-06 55 57
MAR-30 54 57
APR-20 54 56
MAY-06 54 57
JUN-30 54 57
 
Date
Max 1 Hour Average
 

APR-19 65  
MAY-04 64  
JUN-08 63  
OCT-31 63  
MAR-20 61  
MAY-01 61  
MAY-05 59  
MAY-25 59  
MAR-14 58  
MAR-05 57  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
JUL-18 24.9  
MAY-11 23.2  
APR-17 21.8  
JUL-01 20.9  
AUG-23 20.1  
MAR-20 19.4  
AUG-22 19.1  
JUN-07 19  
APR-18 18.7  
MAR-21 18.5  
* = 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 2023.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
JUL-18 1.400 1.628
NOV-26 1.400 1.684
NOV-30 1.390 1.903
NOV-18 1.380 1.483
NOV-19 1.380 1.473
DEC-02 1.380 1.684
DEC-03 1.380 1.546
DEC-01 1.370 1.600
JUN-30 1.360 1.686
JUL-13 1.360 1.450

Date
Max 1 Hour Average
 
APR-17 2.315  
MAY-11 2.152  
SEP-19 2.128  
JUN-06 2.093  
MAR-09 1.969  
NOV-20 1.934  
JAN-10 1.932  
NOV-30 1.903  
FEB-14 1.833  
MAY-06 1.800  
* = Value Not Available

Federal Air Quality Standard
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