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The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter ( PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively).
On June 28, 2016, the City of Saint-Hyacinthe, Quebec dumped approximately 8,000 tonnes of raw sewage into the Yamaska River allegedly causing the deaths of thousands of fish. [38] The "most serious case of water contamination in Canadian history" was the "fatal E. coli outbreak in Walkerton, Ontario in May 2000. [39]
While most of Canada's surface and ground water is generally clean there is some local and regional water pollution that can be caused by "industrial and municipal discharge, runoff, spills, and deposition of airborne pollutants". [15] Contaminated water can result in a myriad of serious consequences for human health.
For the first time in the history of this report, Canada was the most polluted country in Northern America, with the region's 13 most polluted cities located within its borders.
A new report from the World Health Organization lists the cities with the most polluted air -- and unfortunately, a lot of cites are on it. Topping the list is Delhi. Euronews' video makes it easy ...
Western cities top the list of most polluted. Globally, more than 6.5 million people die each year due to air pollution. Exposure to polluted air can inflame cells and increase the risk of chronic ...
The air monitoring site located in Labrador City is an industrial station for which Environment Canada has added an ozone monitor to predict an air quality health index for the area. Data from the NAPS Program are included in the Canada-wide Air Quality Database and are published in annual air quality data summary reports. [15]
The following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter in micrograms per cubic meter (μg/m 3).