Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Sunday, February 1, 2015, 6:00 pm

Station	O3 (ppb)	PM2.5 (µg/m3)	NO2 (ppb)	SO2 (ppb)	CO (ppm)
Barrie	34	3	2
Belleville	34	4	3
Brampton	24	5	15
Brantford	27	3	10
Burlington	35	2	2
Chatham	27	5	7
Cornwall	33	8	5
Dorset	36	2
Grand Bend	32	5	4
Guelph	27	4	6
Hamilton Downtown	33	2	5	0	.18
Hamilton Mountain	31	3	6	2
Hamilton West	31	4	6
Kingston	33	5	4
Kitchener	25	4	11
London	29	4	7
Mississauga	22	7	16	1
Morrisburg	34	5
Newmarket	34	3	4
North Bay	33	2	3
Oakville	23	7	11
Oshawa	32	4	4
Ottawa Central	33	8	3
Ottawa Downtown	31	7	5	1	.2
Parry Sound	34	8	2
Petawawa	34	3
Peterborough	34	3	3
Port Stanley	30	5	6
Sarnia	31	4	5	0
Sault Ste Marie	34	6	3	0
St. Catharines	33	3	3
Sudbury	30	4	7	0
Thunder Bay	34	4	4
Tiverton	34	2	1
Toronto Downtown	21	8	18
Toronto East	28	3	9
Toronto North	30	8	10
Toronto West	20	6	25	1	.26
Windsor Downtown	28	5	11	2	.28
Windsor West	28	6	10	1

Order by Station Location (East to West)

Note: 
Ontario 1-hour AAQC for O₃ = 80 ppb
Ontario 1-hour AAQC for NO₂ = 200 ppb
Ontario 1-hour AAQC for SO₂ = 250 ppb
Ontario 1-hour AAQC for CO = 30 ppm

Note: The pollutant concentrations on this web page are based on automatically
polled data and have not undergone final verification.

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