Monday, July 27, 2009

Sulfur dioxide (SO2) emissions in both Canada and the U.S


Sulphur dioxide emissions come from:

Sulfur dioxide (SO2), usually a by-product of industrial processes and fossil fuel is burned. Ore, coal and natural gas processing plants are the most important smelting. In 2000, the UK example, for the S 2 emission, therefore, 14.8 million tonnes - more than six times larger that the Czech Republic was 2.4 million tonnes. But the two countries from different sources of SO2 emissions. Canada, industrial sources and power equipment 27% (2000) with 68% of emissions. Electrical equipment in the U.S. (2002) with 67% of emissions.

Netherlands to deal with acid rain, the initiative can not be. Canada and the United States in emissions of acid reduction only the decision of the acid rain. The show in the U.S. from Eastern Canada in more than half the acid. Ontario in areas such as South East Asia (Long Woods), and Sutton, Quebec, the United States in about three quarters of the acid will. In 1995, Canada in the U.S. sulfur oxide across the estimated annual 3.5 million tonnes was from 4.2.

SO2 emission levels changing:

2.3 million tonnes in 1994, a 40% reduction from 1980, an increase of the eastern Canada acid rain program in Canada in 1985 to seven years in the province of Manitoba in order to reduce SO2 emissions is. By 1994, seven provinces met or exceeded its target. 1998, provinces, regions and the Federal Government's agreement with Canada Wide -2000 after acid rain strategy, acid rain Commission proposed new measures. Canada's acid rain program, including data on emissions and the post-2000 period for both the progress of the strategy for the former, the two programs should be included in the annual report. 1980 and 2001 between, SO2 emissions by about 50%, an increase of 2.38 million tonnes. In eastern Canada, SO2 emissions by 63%, an increase of 1,980 from 2001.

Acid rain remain a problem without further controls:


The scientists in 1990, only 1991, Canada - USA air quality (AQA) is necessary for the reduction of SO2 emissions in Canada and the USA about 75% of the acid in Canada to address the problem. The explanation of the science in the ecosystems in the humid sulfur - was to the effect of the acids. New assessment of the science in science acidic acid 2004 wet and dry sulfur and nitrogen from the declaration, the potential of aquatic and terrestrial ecosystems assessed. A better estimate of sec (SO2 gaseous particle sulphate, nitric acid, nitrates and other particles, the amount of nitrogen), that the critical loads for aquatic ecosystems in the last estimate of the signal that the impact of the proposed strategy for the last projections were too optimistic. In some regions, forest ecosystems taxes and, more importantly, it is for the ecosystems. Canada is still angry at the different levels of forest ecosystems examination of terrestrial ecosystems in the new configuration is a weight is required. It seems that the new science of the size of the reduction of emissions of SO2, or they are getting more support will continue.

So for this post in Canada - a comprehensive strategy for acid rain in Canada and the United States and the reduction of emissions by 2000 points. Persons in 1991, Canada, the United States Air Quality Directive of the agreement, the south and center of the province, the south and the center of Quebec, New Brunswick and Nova Scotia in the field of identity on the control of the next annual meeting of the deposition of sulphate, without much weight that their resources for the achievement is. Weight for these important and the center of the province and the center of the southern Quebec to 10 kg wet sulphate per hectare per year can be eliminated. Consequently, more than 95,000 lakes created by acid rain. Lakes in these areas, the reduction of sulphates, as in the statement, or as fast as in the less sensitive have not responded. Indeed, some sensitive lakes are acidic.

Total before with some 800,000 km2 of southern Canada - an area the size of France and the United Kingdom in the organization - in the acid rain harmful, that the water above the maximum weight.

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