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: Davis Island
 Ad Hoc Reporting

AQS # L057-1035
Davis Island

10 Highest Daily Averages for Year 2011


CO Averages

CO data below are shown in Parts Per Million (PPM)
This site did not monitor CO during 2011.

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2011.

Ozone Averages

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

JUN-16 77 91
MAY-10 73 79
SEP-16 73 94
MAY-07 72 78
JUN-06 71 88
MAR-22 69 88
MAY-19 67 78
MAR-17 65 77
MAR-25 65 72
APR-14 65 68
 
Date
Max 1 Hour Average
 

SEP-16 94  
JUN-16 91  
MAR-22 88  
JUN-06 88  
MAY-20 82  
MAR-18 79  
MAY-10 79  
MAY-07 78  
MAY-19 78  
MAR-17 77  

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 2011.

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
MAR-22 45.8  
SEP-14 45.4  
FEB-16 40.8  
FEB-17 37.4  
SEP-16 37  
APR-18 36.9  
MAY-10 36.6  
MAY-11 36.3  
APR-14 34.5  
JUL-10 34.5  
* = 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-22 8.250 52.000
NOV-26 7.880 28.000
MAR-20 6.750 50.000
SEP-03 6.540 23.000
NOV-01 6.290 32.000
JUN-07 5.500 18.000
NOV-06 5.290 26.000
JAN-23 4.830 36.000
JAN-01 4.540 13.000
DEC-20 4.540 11.000

Date
Max 1 Hour Average
 
DEC-22 52.000  
MAR-20 50.000  
APR-09 40.000  
FEB-27 38.000  
JAN-23 36.000  
OCT-03 35.000  
NOV-01 32.000  
JAN-09 31.000  
FEB-18 31.000  
JUL-23 30.000  
* = Value Not Available

Federal Air Quality Standard
Go To Top