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 2015


CO Averages

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

DEC-31 0.5 0.408
JAN-20 0.4 0.359
JAN-21 0.4 0.403
MAR-21 0.4 0.408
MAR-20 0.3 0.345
JAN-30 0.3 0.388
MAY-09 0.3 0.329
MAY-10 0.3 0.358
FEB-12 0.3 0.444
FEB-23 0.3 0.358
 
Date
Max 1 Hour Average
 

AUG-25 0.707  
AUG-18 0.448  
FEB-12 0.444  
MAR-21 0.408  
DEC-31 0.408  
JAN-18 0.403  
JAN-21 0.403  
JAN-30 0.388  
JAN-19 0.371  
MAR-16 0.365  

NO2 Averages

NO2 data below are shown in Parts Per Billion (PPB)
This site did not monitor NO2 during 2015.

Ozone Averages

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

APR-22 74 *
MAR-20 69 80
MAY-02 68 75
MAY-09 68 80
JUL-13 66 80
APR-21 65 76
MAR-19 64 71
AUG-25 64 72
MAR-16 63 69
MAY-01 62 64
 
Date
Max 1 Hour Average
 

MAR-20 80  
MAY-09 80  
JUL-13 80  
APR-21 76  
MAY-02 75  
AUG-25 72  
MAR-19 71  
AUG-09 70  
MAR-16 69  
JUN-04 68  

PM 2.5 Averages

PM 2.5 data below are shown in Micrograms Per Cubic Meter (μg/m3)
Date
Daily Average
 
MAR-20 23  
AUG-04 20.6  
APR-26 20.2  
AUG-05 20.2  
JAN-10 19.8  
JUL-01 18.7  
JUL-08 18.7  
JAN-28 18.3  
FEB-15 18.3  
FEB-14 17.4  
* = 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 2015.

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Average
1 Hour Average
JUL-08 3.290 15.000
AUG-17 2.750 8.000
JUL-09 2.740 14.000
JUN-04 2.580 17.000
APR-08 2.460 15.000
JUN-16 2.380 11.000
MAY-31 2.130 10.000
JUN-14 2.080 7.000
JUN-07 2.000 9.000
JUL-10 1.960 10.000

Date
Max 1 Hour Average
 
JUN-04 17.000  
APR-08 15.000  
JUN-05 15.000  
JUL-08 15.000  
FEB-01 14.000  
JUL-09 14.000  
JUN-16 11.000  
APR-23 10.000  
MAY-31 10.000  
JUL-10 10.000  
* = Value Not Available

Federal Air Quality Standard
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