Air Pollution in Ontario: Real-time Air Quality Index and smog alert.

Locations: Ajax » Algoma » Bearskin Lake » Bruce County » Cannifton » Chatham-Kent » Chelsea Green » Cochrane District » Corktown » Cornwall » Country Hills » Darbyville » Dynes » Eastview » Elgin County » Elgin Mills » Fairview » Grand Bend » Harmony Beach » Hastings County » Holmedale » Huckson Corners » Kent Gardens » Kingston » Little Britain » London » Madoc » Minet's Point » Mount Joy » District Municipality of Muskoka » Newmarket » Regional Municipality of Niagara » Old Glenridge » Oshawa » Owen Sound » Parry Sound District » Peterborough » Point Edward » Portsmouth » Ridley Heights » Royal » Simcoe County » St. Pie X » The Donovan » Thunder Bay District » Timmins » Downtown Toronto » Toronto » United Counties of Stormont, Dundas and Glengarry » Vaughan » Victoria Hills » Waterloo » Waterloo » Welland » Wellington County » West Lynde » Westmount » Wiltshire Park » The Entertainment District » Discovery District » Ottawa »

Pollution and air quality forecast for Ontario. Today is Friday, April 19, 2024. The following air pollution values have been recorded for Ontario:

ozone (O3) - 0 (Good)
nitrogen dioxide (NO2) - 0 (Good)
particulate matter (PM2.5) dust - 6 (Good)
carbon monoxide (CO) - 0 (Good)
sulfur dioxide (SO2) - 0 (Good)
particulate matter (PM10) suspended dust - 6 (Good)

Real-time Air Quality Index (AQI) for Ontario, Tuesday, April 16, 2024: 1.

AQI 1 Good

What is the air quality in Ontario today? Is the air polluted in Ontario?. Is there smog?

Today (Tuesday, April 16, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Ontario.

How is the O3 level today in Ontario? (ozone (O3))
0 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
0 (Good)

What is the current level of PM2.5 in Ontario? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 6 (Good) For comparison, the highest level of PM2.5 in Ontario in the last 7 days was: 40 (Monday, July 17, 2023) and the lowest: 1 (Saturday, April 13, 2024). The highest PM2.5 values were recorded: 8.6 (August 2018). The lowest level of particulate matter PM2.5 pollution occurs in month: May (4.3).

How high is the CO level? (carbon monoxide (CO))
0 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)

What is the level of PM10 today in Ontario? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Ontario is: 6 (Good)

Current data Tuesday, April 16, 2024, 10:00 AM

O3 0 (Good)

0 (Good)

NO2 0 (Good)

PM2,5 6 (Good)

CO 0 (Good)

SO2 0 (Good)

PM10 6 (Good)

Data on air pollution from recent days in Ontario

index	2024-04-09	2024-04-10	2024-04-11	2024-04-12	2024-04-13	2024-04-14	2024-04-15	2024-04-16	2023-07-17
o3	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	- Good
no2	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good
pm25	8 Good	6 Good	5 Good	3 Good	1 Good	4 Good	5 Good	4 Good	40 Unhealthy for Sensitive Groups
no	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	- Good
nox	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	- Good
co	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	- Good
so2	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	- Good
pm10	10 Good	13 Good	8 Good	2 Good	1 Good	5 Good	10 Good	6 Good	- Good

data source »

pollution pm25 hikersbay.com — Air pollution in Ontario from April 2018 to May 2020

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03	2018-05	2018-04
o3:ppm	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.03 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)
pm25	4.3 (Good)	5.3 (Good)	6 (Good)	6.6 (Good)	6 (Good)	7.5 (Good)	6.6 (Good)	4.9 (Good)	5.5 (Good)	5.3 (Good)	7.8 (Good)	6.1 (Good)	5.4 (Good)	5.3 (Good)	7.3 (Good)	7 (Good)	6 (Good)	7.5 (Good)	4.8 (Good)	4.6 (Good)	4.4 (Good)	8.6 (Good)	7.4 (Good)	6.2 (Good)	4.4 (Good)	8.5 (Good)	7.7 (Good)	6.9 (Good)	5.8 (Good)	5.9 (Good)	7.4 (Good)	7.2 (Good)	6.4 (Good)	5.4 (Good)	5.1 (Good)	5 (Good)	5.8 (Good)	7.1 (Good)	6.8 (Good)	6.5 (Good)	7.4 (Good)	4.6 (Good)	5.2 (Good)	5.6 (Good)	6.1 (Good)	5.7 (Good)	6.9 (Good)	5.7 (Good)	6.3 (Good)	7.8 (Good)	5.6 (Good)

data source »

Quality of life in Ontario

Green and Parks in the City

Ontario 75%

United States: 70% Venezuela: 41% Iceland: 72%

particulate matter PM2.5

Ontario 7.2 (Good)

Pleasure of spending time in the city

Ontario 80%

United States: 75% The Bahamas: 53% Venezuela: 41% Iceland: 89%

particulate matter PM10

Ontario 13 (Good)

Air Pollution

Ontario 21%

United States: 29% The Bahamas: 52% Venezuela: 59% Iceland: 13%

Garbage Disposal

Ontario 73%

United States: 71% The Bahamas: 29% Venezuela: 18% Iceland: 79%

Availability and quality of drinking water

Ontario 77%

United States: 71% The Bahamas: 55% Venezuela: 28% Iceland: 96%

Cleanliness and tidiness

Ontario 66%

United States: 60% The Bahamas: 35% Venezuela: 22% Iceland: 75%

Noise and Light pollution

Ontario 33%

United States: 47% The Bahamas: 39% Venezuela: 47% Iceland: 23%

Water Pollution

Ontario 38%

United States: 44% The Bahamas: 58% Venezuela: 76% Iceland: 8.4%

Source: Numbeo

ALGOMA

Tuesday, April 16, 2024, 11:00 AM

O3 0.04 (Good)

ozone (O3)

Barrie

Tuesday, April 16, 2024, 10:00 AM

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

O3 0.03 (Good)

ozone (O3)

NO2 0.01 (Good)

nitrogen dioxide (NO2)

PM2,5 4 (Good)

particulate matter (PM2.5) dust

Belleville

Tuesday, April 16, 2024, 10:00 AM

PM2,5 5 (Good)

particulate matter (PM2.5) dust

NO2 0 (Good)

nitrogen dioxide (NO2)

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0 (Good)

index_name_nox

Bonner Lake

Tuesday, April 16, 2024, 11:00 AM

O3 0.04 (Good)

ozone (O3)

Brantford

Tuesday, April 16, 2024, 10:00 AM

PM2,5 5 (Good)

particulate matter (PM2.5) dust

O3 0.01 (Good)

ozone (O3)

0.01 (Good)

index_name_nox

0 (Good)

index_name_no

NO2 0.01 (Good)

nitrogen dioxide (NO2)

Chatham

Tuesday, April 16, 2024, 10:00 AM

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

NO2 0.01 (Good)

nitrogen dioxide (NO2)

PM2,5 5 (Good)

particulate matter (PM2.5) dust

Cornwall

Tuesday, April 16, 2024, 11:00 AM

O3 0.04 (Good)

ozone (O3)

PM2,5 2.7 (Good)

particulate matter (PM2.5) dust

CO 0.1 (Good)

carbon monoxide (CO)

SO2 0 (Good)

sulfur dioxide (SO2)

PM10 6 (Good)

particulate matter (PM10) suspended dust

0.02 (Good)

index_name_nox

NO2 0.02 (Good)

nitrogen dioxide (NO2)

0.01 (Good)

index_name_no

Dorset

Tuesday, April 16, 2024, 10:00 AM

O3 0.01 (Good)

ozone (O3)

PM2,5 3 (Good)

particulate matter (PM2.5) dust

EGBERT

Tuesday, April 16, 2024, 11:00 AM

O3 0.03 (Good)

ozone (O3)

Experimental Lakes

Tuesday, April 16, 2024, 11:00 AM

O3 0.04 (Good)

ozone (O3)

Grand Bend

Tuesday, April 16, 2024, 10:00 AM

NO2 0.01 (Good)

nitrogen dioxide (NO2)

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

PM2,5 4 (Good)

particulate matter (PM2.5) dust

Hamilton Downtown

Tuesday, April 16, 2024, 10:00 AM

PM2,5 4 (Good)

particulate matter (PM2.5) dust

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

NO2 0.01 (Good)

nitrogen dioxide (NO2)

Kingston

Tuesday, April 16, 2024, 10:00 AM

0 (Good)

index_name_no

O3 0.03 (Good)

ozone (O3)

0.01 (Good)

index_name_nox

PM2,5 3 (Good)

particulate matter (PM2.5) dust

NO2 0.01 (Good)

nitrogen dioxide (NO2)

Kitchener

Tuesday, April 16, 2024, 10:00 AM

PM2,5 4 (Good)

particulate matter (PM2.5) dust

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

NO2 0.01 (Good)

nitrogen dioxide (NO2)

London

Tuesday, April 16, 2024, 11:00 AM

O3 0.03 (Good)

ozone (O3)

0.01 (Good)

index_name_no

PM2,5 7 (Good)

particulate matter (PM2.5) dust

NO2 0.01 (Good)

nitrogen dioxide (NO2)

0.02 (Good)

index_name_nox

North Bay

Tuesday, April 16, 2024, 10:00 AM

0 (Good)

index_name_no

NO2 0.01 (Good)

nitrogen dioxide (NO2)

O3 0.02 (Good)

ozone (O3)

0.01 (Good)

index_name_nox

PM2,5 6 (Good)

particulate matter (PM2.5) dust

Ottawa

Monday, July 17, 2023, 2:00 PM

PM2,5 40 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

NO2 0 (Good)

nitrogen dioxide (NO2)

Parry Sound

Tuesday, April 16, 2024, 10:00 AM

0.02 (Good)

index_name_nox

0 (Good)

index_name_no

O3 0.01 (Good)

ozone (O3)

NO2 0.01 (Good)

nitrogen dioxide (NO2)

PM2,5 4 (Good)

particulate matter (PM2.5) dust

Peterborough

Tuesday, April 16, 2024, 10:00 AM

0 (Good)

index_name_no

NO2 0 (Good)

nitrogen dioxide (NO2)

0 (Good)

index_name_nox

PM2,5 3 (Good)

particulate matter (PM2.5) dust

O3 0.03 (Good)

ozone (O3)

Pickle Lake

Tuesday, April 16, 2024, 10:00 AM

O3 0.04 (Good)

ozone (O3)

Port Stanley

Friday, April 12, 2024, 12:00 PM

0.02 (Good)

index_name_nox

NO2 0.02 (Good)

nitrogen dioxide (NO2)

0 (Good)

index_name_no

O3 0.01 (Good)

ozone (O3)

Sarnia

Tuesday, April 16, 2024, 10:00 AM

SO2 0 (Good)

sulfur dioxide (SO2)

0 (Good)

index_name_no

NO2 0 (Good)

nitrogen dioxide (NO2)

PM2,5 3 (Good)

particulate matter (PM2.5) dust

0.01 (Good)

index_name_nox

O3 0.04 (Good)

ozone (O3)

Sault Ste Marie

Tuesday, April 16, 2024, 10:00 AM

NO2 0.01 (Good)

nitrogen dioxide (NO2)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

O3 0.02 (Good)

ozone (O3)

SO2 0 (Good)

sulfur dioxide (SO2)

PM2,5 4 (Good)

particulate matter (PM2.5) dust

St. Catharines

Tuesday, April 16, 2024, 10:00 AM

NO2 0.02 (Good)

nitrogen dioxide (NO2)

0.03 (Good)

index_name_nox

0.01 (Good)

index_name_no

PM2,5 5 (Good)

particulate matter (PM2.5) dust

O3 0 (Good)

ozone (O3)

Sudbury

Tuesday, April 16, 2024, 10:00 AM

SO2 0 (Good)

sulfur dioxide (SO2)

PM2,5 4 (Good)

particulate matter (PM2.5) dust

NO2 0.01 (Good)

nitrogen dioxide (NO2)

O3 0.03 (Good)

ozone (O3)

0.01 (Good)

index_name_nox

Tiverton

Tuesday, April 16, 2024, 10:00 AM

O3 0.03 (Good)

ozone (O3)

PM2,5 2 (Good)

particulate matter (PM2.5) dust

Toronto Downtown

Tuesday, April 16, 2024, 10:00 AM

NO2 0.01 (Good)

nitrogen dioxide (NO2)

PM2,5 3 (Good)

particulate matter (PM2.5) dust

O3 0.03 (Good)

ozone (O3)

0 (Good)

index_name_no

0.01 (Good)

index_name_nox

ALGOMA

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04

Barrie

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03
no2	0.01	0	0	0	0	0	0.01	0.01
pm25	3.8	4.5	4.8	1.3	3.3	4.8	5.3	9.6
no	0	0	0	0	0	0	0	0
nox	0.01	0	0	0	0	0	0.01	0.01

Belleville

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
nox	0.01	0	0	0	0	0.01	0	0.02
pm25	3.2	4	3.1	0.88	1.8	6.8	5.2	6.6
no2	0	0	0	0	0	0.01	0	0.01
o3	0.04	0.03	0.04	0.04	0.04	0.03	0.04	0.03
no	0	0	0	0	0	0	0	0.01

Bonner Lake

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.04	0.04	0.03	0.04	0.04	0.04	0.03	0.04

Brantford

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no	0	0	0	0	0	0	0	0
o3	0.02	0.04	0.04	0.04	0.03	0.03	0.04	0.03
nox	0.01	0	0	0	0	0.01	0	0.01
pm25	4.1	5.6	4.5	1.5	3.9	6.4	5.6	9.5
no2	0	0	0	0	0	0.01	0	0.01

Chatham

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	3.5	5.8	5	1.7	1.6	5.2	4.8	9.8
nox	0.01	0	0	0	0	0	0.01	0.01
no2	0	0	0	0	0	0	0	0.01
no	0	0	0	0	0	0	0	0
o3	0.04	0.04	0.05	0.05	0.04	0.04	0.04	0.04

Cornwall

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
nox	0.01	0	0	0	0	0.01	0.01	0.01
no	0	0	0	0	0	0	0	0
co	0.1	0.15	0.11	0.1	0.1	0.18	0.2	0.17
o3	0.04	0.04	0.04	0.04	0.04	0.03	0.04	0.04
so2	0	0	0	0	0	0	0	0
pm25	3.4	4.2	2.4	0.58	1.5	5.8	5.5	3.5
no2	0.01	0	0	0	0	0.01	0.01	0.01
pm10	6.3	10	4.7	1.2	2	8.1	13	10

Dorset

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	2.9	2.8	2.9	0.96	1	2.6	3.8	4.6
o3	0.02	0.03	0.03	0.04	0.03	0.03	0.03	0.03

EGBERT

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.04	0.04	0.04	0.04	0.03	0.03	0.04	0.04

Experimental Lakes

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04

Grand Bend

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no	0	0	0	0	0	0	0	0
nox	0	0	0	0	0	0	0	0
pm25	3.4	5.1	4.7	2.3	1.5	4.7	4.1	9
no2	0	0	0	0	0	0	0	0
o3	0.04	0.05	0.04	0.04	0.04	0.03	0.04	0.04

Hamilton Downtown

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no	0	0	0	0	0	0	0	0.03
nox	0.01	0.01	0.01	0	0.01	0.02	0.01	0.06
no2	0.01	0.01	0.01	0	0.01	0.02	0.01	0.03
o3	0.03	0.03	0.03	0.04	0.02	0.03	0.03	0.01
pm25	5.1	7.3	9.5	1	15	7	9.2	23

Kingston

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no	0	0	0	0	0	0	0	0
pm25	3.8	4.1	2.7	0.96	1.8	8.3	6.8	5.9
no2	0.01	0	0	0	0	0.01	0	0.01
nox	0.01	0	0	0	0	0.01	0	0.01
o3	0.03	0.03	0.04	0.03	0.04	0.03	0.04	0.03

Kitchener

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
nox	0	0	0	0	0	0.01	0	0.02
o3	0.04	0.04	0.04	0.04	0.03	0.03	0.04	0.03
no	0	0	0	0	0	0	0	0.01
pm25	3.9	5.6	4.8	1.8	3.1	5.3	5.4	9.3
no2	0	0	0	0	0	0.01	0	0.01

London

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no2	0.01	0.01	0.01	0	0	0.01	0.01	0.01
o3	0.03	0.04	0.04	0.04	0.04	0.03	0.04	0.04
nox	0.01	0.01	0.01	0	0	0.01	0.01	0.01
pm25	6	5.7	5.3	1.9	2.3	7	5	9
no	0	0	0	0	0	0	0	0

North Bay

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.03	0.02	0.04	0.04	0.03	0.03	0.04	0.03
nox	0.01	0.01	0	0	0	0.01	0.01	0.01
pm25	6	5.5	3	0.67	1.2	4.3	5.1	5.5
no	0	0	0	0	0	0	0	0
no2	0.01	0	0	0	0	0.01	0	0.01

Ottawa

index	2023-07-17
pm25	40
no2	0

Parry Sound

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	3.4	3.3	3.1	0.67	1.3	3.2	4.3	4.9
o3	0.03	0.03	0.04	0.04	0.03	0.03	0.04	0.04
no	0	0	0	0	0	0	0	0
no2	0	0	0	0	0	0	0	0
nox	0.01	0	0	0	0	0	0	0

Peterborough

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no	0	0	0	0	0	0	0	0
pm25	3	4.2	3.2	0.75	2.5	5.5	4.8	6.5
o3	0.04	0.04	0.04	0.04	0.03	0.03	0.04	0.03
nox	0	0	0	0	0	0.01	0	0.01
no2	0	0	0	0	0	0	0	0.01

Pickle Lake

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.04	0.04	0.04	0.04	0.04	0.04	0.03	0.04

Port Stanley

index	2024-04-12	2024-04-11
o3	0.01	0.01
nox	0.01	0.02
no	0	0
no2	0.01	0.02

Sarnia

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	3.5	5.6	5	1.9	1.8	6.5	3.3	11
no2	0.01	0.01	0.01	0	0	0.01	0.01	0.01
no	0	0	0	0	0	0	0	0
nox	0.01	0.01	0.01	0	0	0.01	0.01	0.01
o3	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
so2	0	0	0	0	0	0	0	0

Sault Ste Marie

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
o3	0.03	0.04	0.04	0.04	0.04	0.04	0.03	0.04
so2	0	0	0	0	0	0	0	0
nox	0.01	0.01	0	0	0	0	0.01	0
no	0	0	0	0	0	0	0	0
pm25	3.1	3.5	3.7	2	2.5	5.4	4.2	3.8
no2	0.01	0	0	0	0	0	0.01	0

St. Catharines

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
no2	0.01	0.01	0.01	0	0.01	0.01	0.01	0.01
nox	0.01	0.01	0.01	0	0.01	0.01	0.01	0.03
o3	0.02	0.03	0.04	0.04	0.03	0.03	0.05	0.02
no	0	0	0	0	0	0	0	0.01
pm25	4.4	6.8	3.9	1.4	4.8	5.9	6.3	9.9

Sudbury

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
nox	0.01	0.01	0	0	0	0.01	0.01	0.02
no2	0.01	0.01	0	0	0	0.01	0.01	0.01
o3	0.03	0.03	0.04	0.04	0.03	0.03	0.04	0.03
pm25	4	3.6	3.1	0.96	0.33	5.2	7	9.5
so2	0	0	0	0	0	0	0	0

Tiverton

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	2.8	3.8	4.3	2.1	2.1	3.3	3.3	7.5
o3	0.04	0.04	0.04	0.04	0.03	0.03	0.04	0.05

Toronto Downtown

index	2024-04-16	2024-04-15	2024-04-14	2024-04-13	2024-04-12	2024-04-11	2024-04-10	2024-04-09
pm25	3.4	7.5	7.9	3.4	4.3	5.3	14	12
o3	0.03	0.03	0.03	0.04	0.03	0.03	0.03	0.02
nox	0.01	0.02	0.02	0.01	0.01	0.02	0.03	0.07
no	0	0	0.01	0	0	0	0.01	0.03
no2	0.01	0.01	0.02	0.01	0.01	0.01	0.03	0.04

Algoma

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.04

Barrie

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03
pm25	4.5	7.6	7.5	7.9	7.2	9.4	9	6.5	7.2	5.9	8	6.8	6.4	6	9.6	8.4	6.6	8.8	6.2	5.8	5	9.8	8.2	7.3	8.4	6	4.7	9.7	9.6	9.1	6.7	7.6	9.3	8.3	7.5	6.2	6	5.4	5.8	6.7	6.7	6.7	8.2	4.6	5.1	5.5	6.3	5.4	7	6	6.9

Belleville

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	5.1	5.5	5.7	6.2	6	6.8	6.5	5.2	6.4	6	9.1	6	5.3	5.1	6.8	6.2	5.2	6.6	4.5	5	5.5	9	7.8	5.9	7.6	5	3.9	7.8	7.9	6.5	4.6	5.2	7.8	7.1	6.5	5.1	5.1	4.9	4.9	6.3	6.5	5.9	7	3.7	4.6	5	5.2	5	6.3	5	5.8
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.04	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.03

Bonner Lake

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.01	0.02	0.02	0.02	0.03	0.04	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.01	0.02	0.02	0.03	0.03	0.04	0.04

Brantford

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	4.6	5.8	6.8	8.4	6.4	8.6	8	5.2	6.3	6.4	8.2	7.5	6.8	6.9	8.6	9.1	7.3	9.3	6.1	5.3	5.2	9.7	8.5	8.4	10	6.2	5.4	9.6	8.8	7.7	7.7	6.6	8.2	8.5	7	6.4	6.3	5.6	6.6	8.1	7.9	7.8	8.7	6	6.1	6.5	7.2	6.9	8.8	6.5	7.6
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.03	0.04	0.04	0.03	0.02	0.03	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.03

Chatham

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	4.5	5.4	6.6	6.4	5.9	8.9	7	5.4	6.9	6.6	7.9	7.1	5.6	5.9	7.9	7.7	6.4	8.8	6	5.2	4.9	8.7	7	7.4	7.7	5.1	4.6	8.6	8.1	7.6	6.1	5.7	6.4	6.7	7.1	6.5	5.6	5.1	6	7.7	6.6	7.4	8.2	5.4	5.3	5.9	6.5	6.1	7.3	6	6.9
o3:ppm	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03

Cornwall

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.03	0.03
pm25	4.2	5.6	5.7	8.5	6.8	6.7	6.1	5	4.1	5.3	8.3	6.3	4.7	4.6	6.6	6.8	6.7	6.7	4.6	4.3	4.2	8.9	7.5	5.8	6	5.4	5.1	8.5	7.2	7.3	5.6	6.4	7.7	6.5	6	4.8	4.1	4.7	6.5	7.9	6.9	6.8	8.3	5.2	6.5	5.6	5.7	5.6	6.4	5.7	6.5

Dorset

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	3.9	4.4	3.8	4.9	3.8	4.6	3.9	4	4.3	3.8	6.6	4.7	4	2.7	4.1	3.5	4	5.2	3	5.4	3.5	7.2	6.1	4.1	6.1	4.7	3.3	5.7	6	4.9	4.6	4.8	5.9	6.7	5.7	4.4	3.6	3.7	3.5	4.9	4.3	4.3	5.6	2.9	5.2	6	4.4	4.1	4.8	4.1	4.1
o3:ppm	0.03	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.03

Egbert

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04

Experimental Lakes

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.04	0.05	0.05	0.04	0.03	0.03	0.03	0.03	0.02	0.03	0.02	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04

Grand Bend

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.04	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.04	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03
pm25	3.3	4.5	4.7	5.9	6.2	7.8	5.5	4.2	4.4	4.4	6	4.5	3.5	4.2	6.9	7.8	5.6	7	6	4.3	3.4	7	6	4.7	5.5	4.8	3.6	8.7	7.8	6	4.7	4.2	5.5	5.8	5	2.9	4.1	4	5.7	7	6.4	7	6.4	5	5.3	5.5	6.1	5	6.6	5.7	6.5

Hamilton Downtown

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03
pm25	6.1	7.6	8.1	8	7.7	9.4	9	6.8	7	7.1	9.7	11	9.7	9	9.5	9.5	8.6	11	7.2	6.4	6.6	11	9.5	9.9	14	8.5	6.3	11	9.8	8.8	7.1	8	11	8.3	10	8.3	9.2	7.3	7.5	9	9	8.4	9.9	6.2	6.7	6.8	8.1	7.5	10	8.3	9.5

Kingston

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03
pm25	7.5	4.7	4.7	6.1	5.5	5.7	5.4	4.4	5.3	4.7	7.5	5.7	4.8	4.7	5.8	6	4.8	5.5	3.4	3.9	3.2	7.3	5

Kitchener

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	4.5	5.8	7.1	7.7	6.6	8.9	8.2	5.6	6.4	5.9	7.9	6	6	6.3	8.8	9.1	7.5	9.8	5.7	5.3	4.6	9.1	7.8	6.7	9	6.3	4.6	11	8.6	8.4	7	7	8.1	12	7.4	5.7	5.1	5.6	6.3	8.8	8.4	8.5	9.1	6.5	5.7	6.3	6.7	6.6	8.2	6.4	7.3
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.03	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.03

London

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.03	0.03
pm25	5.2	5.6	7	7.2	7	8.9	7.4	5.2	5.5	4.9	6.5	5.6	6.1	6.1	8.8	9	7	9.3	5.6	5	4.8	9	7.9	7.1	8.8	6.3	5.3	10	8.9	8.1	6.8	6.1	6.9	6.7	7.3	6.4	6.2	6.4	6.7	8.8	8.3	7.5	8.6	5.9	5.9	6.6	6.9	6.9	7.8	6.6	6.6

North Bay

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.02	0.02	0.02	0.03	0.02	0.03	0.03	0.03	0.03
pm25	2.9	3.9	4.4	4.9	4.4	4.6	3.4	3.8	5	4.5	6.4	5.4	3.9	3.7	5.4	4	4.6	4.3	2.7	2.5	3.8	8	12	5.1	6.2	4.8	3.4	6	4.7	4.4	4.4	4.4	5.9	5.9	4.3	4.1	3.8	3.8	4.8	5.2	4.9	4.3	5.2	3.5	3.9	4.3	4.7	4.6	5	4.6	4.8

Ottawa

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03
pm25	2.9	5	6.4	9.2	7	7.4	5.9	5.1	4.4	4.6	9.1	5.7	5.8	4.5	6.9	6.9	6.7	6.6	5.4	3.7	4.1	7	6.4	4.8	5.9	5.1	4.1	8.5	7.5	6.6	5.6	5.1	7	6.2	5.8	4.8	4.3	4.3	6.1	8.4	7.6	7	7.5	4	4.9	5.1	4.8	5.8	5.8	4.5	6.3

Parry Sound

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04
pm25	2	3.6	4.2	5.2	4.1	5.5	4.1	2.8	3.9	4.4	6.9	4.3	3.9	3.8	6	4.9	4.1	5.1	2.3	3	3.6	8.3	6.3	3.9	5.7	4.7	4	6.6	5.5	4.7	4.6	4.8	6.5	5.9	4.7	3.9	3.3	3.7	4.8	4.9	5.1	4.4	5.5	3.5	3.9	4.6	5	4.5	5.3	4.5	4.8

Peterborough

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.04	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.04	0.03
pm25	3.5	5.1	5.3	5.6	5.4	6.7	7.1	4.7	4.8	5.7	8.5	5.5	5.5	4.6	7.1	6.6	5.6	7.4	4.5	5	3.7	8.8	6.7	6.1	6.9	5.4	3.7	8.5	8	6.2	5.4	6.4	7.4	6.9	5.8	5	3.9	4.7	5.9	6.7	6.7	7	7.1	3.8	4.5	5	5.4	4.7	6.2	5.2	7

Pickle Lake

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.03	0.03	0.04	0.05	0.04	0.04	0.03	0.03	0.03	0.03	0.02	0.03	0.02	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.04	0.04	0.04

Port Stanley

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.04	0.04	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.04
pm25	4.2	5.8	6.2	6.4	6.1	9.4	7.2	4.5	6.2	5.5	7.1	6.6	6.3	6	8.3	7.9	6.8	9.4	5.7	5.3	4	8.3	6.7	6.6	8.5	5.8	4.9	9.4	7.4	8	6.2	5.2	6.3	6	6	6	5.5	5.7	6.5	8	7.3	7	7.8	5.3	5.1	5.4	6.3	6	7.9	6.2	6

Sarnia

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07
o3:ppm	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03
pm25	3.9	6	7.4	7	6.6	10	8.2	5.4	7.5	5.9	7.7	6.2	5.4	5.8	8.4	8.8	6.9	10	6.1	5.5	4.9	8.7	6.6

Sault Ste Marie

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.02	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.03
pm25	3.5	4.3	4.9	4.8	4	5.3	4.4	3.2	3.9	5	7.4	5.2	4.2	4.8	5.6	4.7	4.4	5.9	2.9	3.3	4.2	7.5	7.3	5	6.9	4.7	3.9	6.5	6.2	4	5	4.6	5.9	6.4	5.8	4.8	4.3	4.3	5	5.5	5.4	4.6	6.3	3.2	4.1	4.8	5.1	5	5.1	4.9	4.7

St. Catharines

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.04	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.03	0.02	0.03	0.03	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.03
pm25	5.1	5.8	6.4	7	6.2	8.6	8.9	6.5	5.5	5.2	7.6	6.8	6.2	6.5	8.8	7.4	7	8.4	5.9	4.6	4.2	8.4	6.8	6.7	9.7	6.5	4.8	8.7	8.3	8.4	6.8	6.2	8.1	7.1	7.5	6.2	7.7	6.2	6.5	8.5	8.2	7.1	6.8	4.5	6.4	6.2	7	6.9	7.8	6.1	6.3

Sudbury

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07
o3:ppm	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.04	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03
pm25	4.2	4.8	5.6	5.2	4.7	5.6	4.4	4.2	4.7	4.8	7.7	5.3	4.5	4.7	5.4	4.2	4.5	4.8	2.8	3.5	4.2	8.4	6.6

Tiverton

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
o3:ppm	0.03	0.04	0.03	0.03	0.03	0.03	0.03	0.02	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.04
pm25	3.1	4.8	6.8	4.7	4.9	6.3	5.4	3.7	4.5	3.9	6.7	4.6	4.4	5.4	5.9	6.3	4.5	6.7	3.9	4.7	4.3	7.8	6.1	5.7	6.9	4	3.6	6.9	6.3	4.8	5.1	6	6	6.5	5.2	4.5	4	4	5	6.2	6.2	5.3	5.9	4.3	4.3	4.3	5.6	4.7	6	5	5.3

Toronto Downtown

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm25	5.3	6.1	7.4	8.6	8.6	10	9.4	6.3	6.9	7.1	10	8.3	6.6	6.5	8.9	8.7	6.8	8.8	5.3	5.1	5.1	11	9.7	7.3	8.6	7	5.4	10	9.9	9.1	6.7	7.5	11	9.6	7	6.1	5.7	5.4	6.5	6.8	7.3	7.3	8.4	4.8	5.4	6.5	9.3	7.1	8.2	6.1	7.7
o3:ppm	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.01	0.02	0.02	0.02	0.03	0.04	0.03	0.04	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03

* Pollution data source: https://openaq.org (AirNow) The data is licensed under CC-By 4.0