Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Tuesday, July 22, 2014, 6:00 pm

Station	O3 (ppb)	PM2.5 (µg/m3)	NO2 (ppb)	SO2 (ppb)	CO (ppm)
Barrie	60	16	5
Belleville	64	10	2
Brampton	64	10	3
Brantford	60	10	0
Burlington	50	10	9
Chatham	65	19	4
Cornwall	51	11	2
Dorset	67	15
Grand Bend	60	11	0
Guelph	56	18	2
Hamilton Downtown	56	8	4	1	.23
Hamilton Mountain	57	7	3	0
Hamilton West	49	7	4
Kingston	58	10	1
Kitchener	57	11	2
London	58	9	2
Mississauga	66	14	7	3
Morrisburg	54	10
Newmarket	75	14	5
North Bay	66	14	2
Oakville	68	14	5
Oshawa	64	15	4
Ottawa Central	59	13	2
Ottawa Downtown	51	16	3	0	.22
Parry Sound	64	15	2
Petawawa	54	25
Peterborough	63	12	3
Port Stanley	66	12
Sarnia	79	17	11	27
Sault Ste Marie	40	19	7	5
St. Catharines	56	12	3
Sudbury	61	11	3	0
Thunder Bay	20	3	1
Tiverton	78	17	1
Toronto Downtown	55	15	22
Toronto East	65	10	7
Toronto North	71	11	10
Toronto West	68	13	6	1	.25
Windsor Downtown	70	17	6	8	.23
Windsor West	69	19	6	7

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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