2018年6月27日 · Information on the causes and effects of acid rain. Why acid rain is a problem in Canada, and what areas of the country are affected.

2013年8月29日 · Acid rain has wiped out fishes, molluscs and frogs in thousands of Eastern Canada lakes . The pH scale measures the degree of acidity (artwork by Michael Lee). Acid rain is the wet or dry deposition of acidic substances and their precursors on the Earth's surface.

It lays out a framework solve the acid rain problem in eastern Canada and prevent one in western and northern Canada. The main elements of the Strategy are: reducing sulphur dioxide emissions in eastern Canada and the US. protect clean areas from degradation. maintain science and monitoring programs and; report regularly to Ministers and the ...

Between 1972 and 1977, evidence linked acidification to the long-range transport of sulphur dioxide from sources in other countries – for Scandinavia, nations of continental Europe, and for Canada, the United States; within Canada there was …

We explain why acid rain is still a concern for freshwater systems, what causes acid rain in Canada, and what Canadian researchers are doing to discover and mitigate its lasting impacts.

In 1985, seven Canadian provinces (all except British Columbia, Alberta, and Saskatchewan) and the federal government signed the Eastern Canada Acid Rain Program. [54] The provinces agreed to limit their combined sulfur dioxide emissions to 2.3 million tonnes by 1994.

2021年6月17日 · Acid rain occurs when sulphur dioxide and other pollutants mix with moisture in the air to form rain droplets with a high level of acidity. This acidity causes aluminum to leach out of the soil...

The geographical distribution of acid rain in Canada is dis- cussed in relation to main source areas of pollutants, prevail- ing meteorological conditions and precipitation type.

Eastern Canada is most sensitive to the effects of acid deposition because of its thin granitic soil. The sensitive area covers 43% of Canada, over 4 million km². Most of the emission sources are also located in the east of the country.

In Canada, acid rain has already killed nearly 15,000 lakes, another 150,000 are being damaged and a further 150,000 are threatened. Many salmon-bearing rivers in Nova Scotia no longer support the species.