Air quality
The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The Air quality indicators track ambient concentrations of fine particulate matter, ground-level ozone, sulphur dioxide, nitrogen dioxide, and volatile organic compounds at the national, regional and urban levels and at local monitoring stations. The national and regional indicators are presented with their corresponding Canadian Ambient Air Quality Standard when available. Canadians are exposed to air pollutants on a daily basis, and this exposure can cause adverse health and environmental effects. Information is provided to Canadians in a number of formats including: static and interactive maps, charts and graphs, HTML and CSV data tables and downloadable reports. See the supplementary documentation for the data sources and details on how the data were collected and how the indicator was calculated. Canadian Environmental Sustainability Indicators: https://www.canada.ca/environmental-indicators
| relative_air_pollutant_concentration_changes_canada_2006_to_202 | unnamed_1 | unnamed_2 | unnamed_3 | unnamed_4 | unnamed_5 | unnamed_6 | unnamed_7 | unnamed_8 | unnamed_9 |
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Year
|
PM2.5 average concentration (percentage change from 2006 level)
|
PM2.5 average peak (98th percentile) 24-hour concentration (percentage change from 2006 level)
|
O3 average 8-hour concentration (percentage change from 2006 level)
|
O3 average peak (4th highest) 8-hour concentration (percentage change from 2006 level)
|
NO2 average concentration (percentage change from 2006 level)
|
NO2 average peak (98th percentile) 1-hour concentration (percentage change from 2006 level)
|
SO2 average concentration (percentage change from 2006 level)
|
SO2 average peak (99th percentile) 1-hour concentration (percentage change from 2006 level)
|
VOC average concentration (percentage change from 2006 level)
|
|
2006
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
|
2007
|
-1.79
|
4.72
|
0.92
|
5.23
|
-2.74
|
-0.48
|
-5.15
|
-10.66
|
-4.77
|
|
2008
|
0.69
|
-4.28
|
-0.76
|
-2.22
|
-7.98
|
0.02
|
-9.83
|
-10.93
|
-5.08
|
|
2009
|
-3.21
|
-10.67
|
-2.14
|
-6.79
|
-10.71
|
-1.76
|
-22.03
|
-17.60
|
-3.71
|
|
2010
|
12.47
|
19.93
|
1.69
|
-2.77
|
-15.99
|
-6.71
|
-33.83
|
-16.80
|
-16.19
|
|
2011
|
6.62
|
-2.37
|
1.73
|
-6.61
|
-18.82
|
-7.93
|
-34.94
|
-43.84
|
-18.07
|
|
2012
|
5.44
|
-4.99
|
3.52
|
-0.74
|
-23.88
|
-15.35
|
-35.95
|
-38.93
|
-30.65
|
|
2013
|
16.11
|
-0.33
|
1.48
|
-7.86
|
-23.85
|
-12.29
|
-38.99
|
-40.22
|
-29.74
|