Reporting of the achievement of the standards is done within specific jurisdictions using 3-year averages. Source: Environment and Climate Change Canada (2018) National Air Pollution Surveillance Program. With the interactive map, you can drill down to the peak NO2 concentrations at specific monitoring stations. Peak O3 concentrations in southern Quebec were higher than the standard for most of the years before 2008. Regional average sulphur dioxide concentrations, Canada, 2002 to 2016. For a given station, the average indicator is calculated by summing all valid daily averages and dividing by the number of valid days. Some VOCs can cause cancer and serious health problems. For more information on the indicators, consult the Air quality indicators definitions in the Methods section. Air Quality Canada Inc. is an environmental consulting firm with experienced professionals who perform Air Quality Assessments and testing services. For example, the 98th percentile value of 25 µg/m3 at a given station means that 98% of all daily 24-hour average concentrations are less than 25 µg/m3, and only 2% are equal to or greater than 25 µg/m3. Note: Census metropolitan areas and census agglomerations were used to define the larger urban areas for this indicator. An up arrow indicates an increasing trend, a down arrow a decreasing trend, and an "X" no trend. Track air pollution now to help plan your day and make healthier lifestyle decisions. Source: Environment and Climate Change Canada (2018) National Air Pollution Surveillance Program and the Canadian Air and Precipitation Monitoring Network. For a given year, the 4th-highest ranking value in the array is identified as the annual peak (4th-highest) 8-hour O3 concentration for that station. The United States and Canada committed to addressing transboundary air pollution issues in the 1991 Air Quality Agreement (AQA), a bilateral executive agreement. This figure shows an example of the calculation of one daily maximum 8-hour average concentration. Our clients range from residential homes to small businesses to large commercial environments. According to a recent Fraser Institute study, Canada ranks 9th out of the 33 richest and cleanest countries on the planet for overall air quality. The national, regional and urban area indicators (average and peak [98th percentile] 1-hour) for NO2 are calculated by averaging the station-level annual average and station-level annual peak values for selected stations within the urban area, the region or Canada as a whole. The reduction in Canadian and U.S. emissions of ground-level O3 precursor gases (nitrogen oxides [NOX] and volatile organic compounds [VOCs]) is an important factor in this downward trend. Concentrations for the years 2002 to 2016 are reported in the data table for this chart. Source: Environment and Climate Change Canada (2018) National Air Pollution Surveillance Program. You will not receive a reply. Nitrogen dioxide (NO2) belongs to a group of substances called nitrogen oxides (NOX).Footnote 9 Nitrogen oxides are emitted into the atmosphere from high-temperature combustion processes such as vehicle engines, power plants and industrial processes. The AQI is used to measure air quality on a scale of zero to 500 (500 being the most hazardous) by showing changes in the amount of air pollution. For the peak (98th percentile) 24-hour PM2.5 indicator, a station is also included if it exceeds the 24-hour standard of 28.0 micrograms per cubic metre (µg/m3), even if the above data completeness criteria are not satisfied. Haze and reduce visibility meet the definition of toxic under the Canadian Environmental indicators. Year 2008, workplace discontent and poor productivity in Canada and British Columbia 2016, the average is... 38.8 ppb, which is 4 % lower than in 2015 in British Columbia recorded concentrations that used! 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