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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: Sydney
Ad Hoc Reporting

AQS # L057-3002

Sydney

 

10 Highest Daily Averages for Year 2017

 

CO Averages

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

NOV-18 0.6 0.59
DEC-31 0.55 0.606
NOV-19 0.54 1.061
NOV-17 0.48 0.452
DEC-15 0.45 0.406
DEC-16 0.45 0.53
JAN-19 0.44 0.513
MAR-17 0.44 0.518
MAR-18 0.44 0.502
JAN-18 0.43 0.403
Date
Max 1 Hour Avg

NOV-19 1.061
DEC-12 0.742
SEP-15 0.642
DEC-31 0.606
NOV-18 0.59
FEB-20 0.571
DEC-2 0.546
JUL-25 0.542
DEC-16 0.53
NOV-5 0.519

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 Avg
1 Hour Avg

MAY-11 79 92
MAY-9 76 87
MAY-10 75 81
APR-9 68 73
MAR-21 67 77
MAY-8 67 75
MAY-27 66 73
MAY-26 65 75
MAY-14 64 67
MAR-18 63 70
Date
Max 1 Hour Avg

MAY-11 92
MAY-9 87
MAY-10 81
MAR-21 77
MAY-8 75
MAY-15 75
MAY-26 75
APR-9 73
MAY-27 73
JUN-9 72

 

PM 2.5 Averages

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

MAY-30 32  
MAY-20 21.4  
MAY-29 20.5  
JUL-26 20.2  
APR-5 18.6  
AUG-4 18.3  
AUG-5 18.3  
DEC-16 16.4  
OCT-23 16.2  
OCT-22 16.1  

 

PM 10 Averages

PM 10 data below are shown in Micrograms Per Cubic Meter (mg/m3)
This site did not monitor PM 10 during 2017

SO2 Averages

SO2 data below are shown in Parts Per Billion (PPB)
Date
Max Daily (24-Hour) Avg
1 Hour Avg

JAN-5 1 4.711
JAN-9 1 1.961
JAN-17 1 4.836
JAN-18 1 5.509
JAN-19 1 2.351
JAN-20 1 3.88
JAN-21 1 1.412
JAN-31 1 2.243
FEB-3 1 4.573
FEB-12 1 3.003
Date
Max 1 Hour Avg

AUG-5 9.476
JUL-10 7.115
SEP-4 6.641
MAR-18 6.577
JUN-27 5.954
APR-2 5.867
JUN-24 5.675
JAN-18 5.509
APR-28 5.127
DEC-5 5.048

Federal Air Quality Standard
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Last updated: March 02, 2017

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