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: Davis Island
 Ad Hoc Reporting

AQS # L057-1035
Davis Island

10 Highest Daily Averages for Year 2017


CO Averages

CO data below are shown in Parts Per Million (PPM)
This site did not monitor CO during 2017.

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2017.

Ozone Averages

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

MAY-10 73 84
MAY-09 71 81
AUG-01 65 78
SEP-28 65 72
APR-09 63 70
MAY-11 63 69
SEP-27 61 76
MAY-27 58 64
MAY-08 57 62
MAY-14 55 58
 
Date
Max 1 Hour Average
 

MAY-10 84  
MAY-09 81  
AUG-01 78  
SEP-27 76  
SEP-28 72  
APR-09 70  
MAY-11 69  
MAY-27 64  
SEP-15 64  
NOV-08 64  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
This site did not monitor PM 2.5 during 2017.

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
MAY-30 88.3  
JUL-26 56.9  
AUG-04 56.3  
JUL-27 55.4  
MAY-29 53.8  
AUG-05 49.9  
JUL-24 44.3  
MAY-20 43.6  
JUL-25 42.7  
OCT-22 38.9  
* = Value Not Available

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
SEP-04 3.340 18.000
JUL-14 3.110 13.900
JUL-06 2.810 9.100
JUL-11 2.780 12.200
JUL-21 2.620 7.700
JUL-05 2.440 11.500
AUG-04 2.380 7.400
APR-29 2.370 7.700
FEB-21 2.320 8.200
JUL-10 2.300 8.300

Date
Max 1 Hour Average
 
SEP-04 18.000  
SEP-28 15.100  
JUL-14 13.900  
APR-14 13.800  
JUN-12 12.900  
JUL-11 12.200  
JUL-05 11.500  
JUL-07 10.300  
JUL-06 9.100  
JUL-25 8.800  
* = Value Not Available

Federal Air Quality Standard
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