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: Sydney
 Ad Hoc Reporting

AQS # L057-3002
Sydney

10 Highest Daily Averages for Year 2014


CO Averages

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

DEC-15 0.4 0.513
DEC-21 0.4 0.472
DEC-12 0.4 0.502
DEC-20 0.4 0.432
OCT-27 0.4 0.410
JAN-18 0.4 0.404
MAR-31 0.4 0.417
DEC-13 0.4 0.417
DEC-16 0.4 0.428
APR-01 0.4 0.405
 
Date
Max 1 Hour Average
 

DEC-15 0.513  
APR-04 0.503  
DEC-12 0.502  
OCT-19 0.473  
DEC-21 0.472  
DEC-20 0.432  
JUL-18 0.431  
DEC-16 0.428  
MAR-31 0.417  
DEC-13 0.417  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2014.

Ozone Averages

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

MAY-24 75 80
APR-01 68 76
AUG-01 67 91
MAY-22 66 78
JUL-31 66 75
MAY-06 65 72
MAY-17 64 71
MAY-21 64 68
MAY-05 63 66
MAY-18 62 65
 
Date
Max 1 Hour Average
 

AUG-01 91  
JUN-09 82  
JUL-21 82  
MAY-24 80  
JUL-22 79  
MAY-22 78  
APR-01 76  
AUG-22 76  
JUL-31 75  
AUG-06 73  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
JUN-25 29.2  
MAY-25 26.3  
DEC-13 25.9  
DEC-12 25.6  
JUN-24 24.2  
NOV-13 23.5  
MAY-24 22.7  
OCT-26 22.2  
NOV-12 22  
DEC-14 21.8  
* = 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 2014.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
NOV-20 4.630 14.000
MAY-09 2.630 23.000
FEB-17 2.290 19.000
OCT-14 1.960 10.000
SEP-13 1.880 9.000
OCT-25 1.710 17.000
SEP-06 1.540 11.000
MAR-03 1.500 6.000
APR-05 1.500 10.000
AUG-22 1.420 6.000

Date
Max 1 Hour Average
 
MAY-09 23.000  
FEB-17 19.000  
OCT-25 17.000  
JUL-10 14.000  
NOV-20 14.000  
OCT-08 13.000  
OCT-28 12.000  
SEP-02 11.000  
SEP-06 11.000  
APR-05 10.000  
* = Value Not Available

Federal Air Quality Standard
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