Current Pollutant Concentrations

Air Pollutant 1-Hour Concentrations For Wednesday, April 23, 2014, 10:00 pm

Station	O3 (ppb)	PM2.5 (µg/m3)	NO2 (ppb)	SO2 (ppb)	CO (ppm)
Barrie	42	5	3
Belleville	48	3	1
Brampton	41	4	5
Brantford	43	5	0
Burlington	39	4	3
Chatham	43	3	3
Cornwall	35	4	7
Dorset	41	4
Grand Bend	46	4	0
Guelph	41	4	3
Hamilton Downtown	40	5	3	0	.16
Hamilton Mountain	42	5	4	1
Hamilton West	38	6	6
Kingston	43	3	3
Kitchener	40	6	5
London	34	1	9
Mississauga	42	5	5	3
Morrisburg	37	4
Newmarket	45	4	3
North Bay	28	12	19
Oakville	43	5	3
Oshawa	46	3	2
Ottawa Central	49	1	2
Ottawa Downtown	49	4	2	0	.14
Parry Sound	45	7	1
Petawawa	49	3
Peterborough	43	4	2
Port Stanley	39	2
Sarnia	42	4	5	0
Sault Ste Marie	41	4	5	0
St. Catharines	45	3	6
Sudbury	39	7	8	1
Thunder Bay	29	7	24
Tiverton	48	4	1
Toronto Downtown	42	6	N/A
Toronto East	36	4	15
Toronto North	44	6	6
Toronto West	22	4	30	2	.27
Windsor Downtown	30	5	19	7	.19
Windsor West	34	7	16	4

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.

Disclaimer