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Air Quality Monitoring

Highest Readings by Year

Air Resource Management
Ad Hoc Reporting

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 Avg
1 Hour Avg

APR-17 0.91 1.075
MAY-10 0.81 0.97
MAY-11 0.64 0.965
SEP-10 0.47 0.497
MAY-13 0.44 0.967
MAR-21 0.37 0.794
MAY-16 0.37 0.443
JUN-5 0.37 0.386
SEP-9 0.37 0.515
JUL-26 0.33 0.337
Date
Max 1 Hour Avg

APR-17 1.075
MAY-10 0.97
MAY-13 0.967
MAY-11 0.965
MAR-21 0.794
FEB-7 0.765
SEP-9 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 Avg
1 Hour Avg

APR-19 62 65
MAY-4 61 64
MAY-1 58 61
MAY-5 57 59
MAY-25 56 59
NOV-6 55 57
MAR-30 54 57
APR-20 54 56
MAY-6 54 57
JUN-30 54 57
Date
Max 1 Hour Avg

APR-19 65
MAY-4 64
JUN-8 63
OCT-31 63
MAR-20 61
MAY-1 61
MAY-5 59
MAY-25 59
MAR-14 58
MAR-5 57

 

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (mg/m3)
Date
Daily Average
 

JUL-18 24.9  
MAY-11 23.2  
APR-17 21.8  
JUL-1 20.9  
AUG-23 20.1  
MAR-20 19.4  
AUG-22 19.1  
JUN-7 19  
APR-18 18.7  
MAR-21 18.5  

 

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (mg/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) Avg
1 Hour Avg

JUL-18 1.4 1.628
NOV-26 1.4 1.684
NOV-30 1.39 1.903
NOV-18 1.38 1.483
NOV-19 1.38 1.473
DEC-2 1.38 1.684
DEC-3 1.38 1.546
DEC-1 1.37 1.6
JUN-30 1.36 1.686
JUL-13 1.36 1.45
Date
Max 1 Hour Avg

APR-17 2.315
MAY-11 2.152
SEP-19 2.128
JUN-6 2.093
MAR-9 1.969
NOV-20 1.934
JAN-10 1.932
NOV-30 1.903
FEB-14 1.833
MAY-6 1.8

Federal Air Quality Standard
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Last updated: March 02, 2017

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