Wednesday
20 May 2026
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Show data readings





GOOD
FAIR
POOR
VERY POOR
EXTREMELY POOR
0 - 66
scale: 33 units		 67 - 99
scale: 33 units		 100 - 149
scale: 33 units		 150 - 199
scale: 33 units		 200
scale: 33 units
Scale: 0 to 250
 

 Pollutants Ozone
O3		 Ozone
O3		 Nitrogen
dioxide
NO2		 Visibility
NEPH		 Carbon
monoxide
CO		 Sulfur
dioxide
SO2		 Particles
PM10		 Particles
PM2.5		  Site AQI

highest
level at
the site
 Regional AQI

highest
level for
the region
 Averaging Periods max
1-hour
average		 max
rolling
4-hour
average		 max
1-hour
average		 max
1-hour
average		 max
rolling
8-hour
average		 max
1-hour
average		 24-hour
average		 24-hour
average
Sydney East Alexandria 30 37 17 9 2 1 14 9 37 38
Cook And Phillip 24 28 22 10 2 19 19 28
Earlwood 29 36 17 8 19 13 36
Lidcombe 29 35 22 13 3 0 20 18 35
Macquarie Park 30 35 12 11 2 0 14 12 35
Randwick 31 38 20 8 1 22 16 38
Rozelle 28 30 18 10 0 19 17 30
Ultimo-uts 27 32 20 9 3 16 15 32
Sydney North-west Parramatta North 28 34 17 22 3 1 24 29 34 35
Penrith 25 30 16 22 3 1 19 15 30
Prospect 27 31 27 23 1 1 21 11 31
Richmond 28 35 5 12 0 14 10 35
Rouse Hill 26 32 17 14 1 1 19 30 32
St Marys 29 35 14 10 20 12 35
Sydney South-west Bringelly 29 33 10 14 0 13 21 33 36
Camden 30 36 7 10 1 15 17 36
Campbelltown West 29 36 21 6 0 0 15 18 36
Liverpool 27 32 19 25 1 1 25 20 32
Oakdale 27 32 1 5 13 19 32
Illawarra Wollongong 28 34 19 7 2 2 18 9 34 36
Kembla Grange 29 35 9 5 18 12 35
Albion Park South 29 36 9 12 0 16 20 36
Lower Hunter Newcastle 24 29 13 9 3 2 20 10 29 29
Beresfield 24 28 14 8 1 20 16 28
Wallsend 24 28 15 14 6 20 17 28
Newcastle Carrington 15 1 19 20 20 30
Stockton 25 30 20 2 25 11 30
Mayfield 14 2 22 12 22
Central Coast Wyong 26 30 14 6 1 0 17 2 30 30
Lake Macquarie Morisset 27 31 7 5 2 0 10 11 31 31
Central Tablelands Bathurst 25 31 16 31 31
Orange 24 29 13 22 13 16 29
Mid-north Coast Coffs Harbour 23 28 9 7 2 12 11 28 35
Port Macquarie 29 35 11 6 0 0 8 6 35
Northern Tablelands Armidale 82 15 28 82 82
North-west Slopes Gunnedah 32 39 4 12 14 39 39
Narrabri 8 12 12
Tamworth 31 39 14 17 24 39
Southern Tablelands Goulburn 27 32 9 11 18 25 32 32
South-west Slopes Albury 27 32 14 24 17 32 33
Wagga Wagga North 28 33 14 23 24 33
Upper Hunter Singleton 28 33 15 0 22 33 33
Muswellbrook 29 36 13 1 22 30 36
Maison Dieu
Singleton Nw
Camberwell
Mount Thorley
Bulga
Muswellbrook Nw
Wybong
Aberdeen
Singleton South
Jerrys Plains
Warkworth
Merriwa 31 38 2 4 0 0 15 14 38
   
Gaps indicate that an instrument was not online for that period OR an average could not be calculated as there were not enough valid hourly data values OR that a pollutant is not measured at the site. Data from monitoring sites is collected, stored and shown in reports using Australian Eastern Standard time (AEST). Normally data for any hour should be available approximately 30 minutes later. During daylight saving, please be aware that the actual local time equals the displayed time plus 1 hour