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Barrie
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Hamilton Downtown
Hamilton Mountain
Hamilton West
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Toronto East
Toronto North
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Windsor Downtown
Windsor West
Pollutants
Select Pollutant
Ozone (O3)
Fine Particulate Matter (PM2.5)
Nitrogen Dioxide (NO2)
Carbon Monoxide (CO)
Sulphur Dioxide (SO2)
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Month
January
February
March
April
May
June
July
August
September
October
November
December
Year
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Chart
Table
London: Hourly Ozone Readings
From Feb-11-2025 EST to Feb-13-2025 EST.
Feb-11-2025 EST
Feb-12-2025 EST
Feb-13-2025 EST
