Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Saturday, February 28, 2015, 5:00 pm

Station	O3 (ppb)	PM2.5 (µg/m3)	NO2 (ppb)	SO2 (ppb)	CO (ppm)
Barrie	44	16	8
Belleville	42	6	6
Brampton	45	12	8
Brantford	47	10	6
Burlington	40	12	11
Chatham	49	12	6
Cornwall	45	8	4
Dorset	47	5
Grand Bend	47	11	6
Guelph	41	11	10
Hamilton Downtown	42	13	11	3	.28
Hamilton Mountain	42	14	13	5
Hamilton West	43	9	8
Kingston	42	7	4
Kitchener	41	11	12
London	44	13	7
Mississauga	43	11	9	3
Morrisburg	44	9
Newmarket	49	10	7
North Bay	47	7	3
Oakville	43	12	N/A
Oshawa	37	13	12
Ottawa Central	47	8	4
Ottawa Downtown	43	10	8	1	.22
Parry Sound	49	8	3
Petawawa	45	4
Peterborough	43	12	7
Port Stanley	48	10	4
Sarnia	42	12	12	11
Sault Ste Marie	43	7	4	1
St. Catharines	49	9	5
Sudbury	42	7	5	1
Thunder Bay	36	8	8
Tiverton	49	10	6
Toronto Downtown	40	13	12
Toronto East	33	14	17
Toronto North	41	15	12
Toronto West	42	14	11	2	.21
Windsor Downtown	46	11	9	4	.24
Windsor West	50	12	5	3

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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