Tuesday, July 28, 2009

Acid Rain and the facts

Due to acid rain:

Acid to deposit a common approach, participation is more than simply acid rain. Sulfur dioxide (SO2) and nitrogen in the conversion of secondary pollutants is primarily the result of dry or moist sour, sulfuric acid (H2SO4), ammonium nitrate (NH4NO3) and nitric acid (HNO3) like. Conversion of SO2 and particulates and NOx emissions of acid vapors or several hundred thousand kilometers on these pollutants in the air as far happens. Acid vapors and particles, the two processes - wet and dry can be explained from. Wet acid rain deposits, is a process in which rain, snow, hail or snow in the atmosphere generally below 5.6 with an acid pH. When such deposits secs, sulfate, nitrate, fly ash and gas (such as SO2 and NOx) in the form of particles or are absorbed in the surface. Gas, the water can be changed in contact with acid.

Acid:

Acids with the basis for the ability to make chemical salt is a bitter taste, with the compounds are. Acid blue litmus paper (pH paper also) called in red. Acid can burn skin.

pH:

PH scale of liquids such as water in the amount of acid is used to measure. Hydrogen ions to the acid, the acidity of the solution since the beginning is based on the concentration of hydrogen ions and to "is referred to as pH". The scale of the acidity of rain samples to describe is used.

PH is the number of small-scale, acidity of the material. Acid pH scale of 0 to 5 in case of rain and, therefore, acid rain "as." The pH scale on a small number of changes, changes in acidity.

For example, a change in just one unit from pH 6.0 to pH 5.0 would indicate a tenfold increase in acidity. Clean rain usually has a pH of 5.6. It is slightly acidic because of carbon dioxide which is naturally present in the atmosphere. Vinegar, by comparison, is very acidic and has a pH of 3.


Acid rain problem:

Because this region lack natural alkalinity of the soil and water in a lot - as the basis of lime - and so naturally can not neutralize acid from acid rain in Eastern Canada is a problem, it is. Because your system for water and soil of the harmful effects of acid rain can not protect against the Ontario, Quebec, New Brunswick and Nova Scotia as part of the Canadian Shield precambrian provinces, are affected. In fact, the hard rock capacity to neutralize acid rain do not need (i.e granite) sensitive, more than half Canada's. Alkaline soil and water if some parts of the South - as the Ontario and Western Canada - May neutralize or "buffer" in nature are against acid rain.

Canada in the West, this time enough information to determine when the acid rain on ecosystems. Industrialization of the historic low - compared to Canada's - and eastwardly time changes such as natural causes of soil resistance (i.e, even neutralize soil acidity), the best, in conjunction with Canada, the bad effects of acid rain in the west is very of.

However, in this western Canada is not in all areas are naturally protected. Lakes and the granite stone from the soil, for example, can quickly ineffective. Canadian Shield in this case, Northern Alberta, Saskatchewan and Manitoba are in the north, British Columbia, Nunavut and the western part of north western region. Lakes in these areas to acid rain, are sensitive to the north of Ontario. When sulfur dioxide and nitrogen in the west of Canada, Eastern Canada in May that exist for the same effect from growth is continuing.

The NOx emissions are the following:

The most important source of NOx emission motor vehicles, furnaces and residential, industry and public power, motors and other equipment in the boiler and the fuel is burning. In 2000, Canada's largest contribution to NOx emissions, the traffic, all of the emission is about 60%. In general, in 2000, 2.5 million tons of NOx emissions. For comparison: in the United States of America, P. 2000 NOx emissions for 21 million tonnes - more than 8 times in Canada with more than the amount of mail.

Canada in the U.S. The purpose of transboundary air pollution. Overall, the U.S. experience with the impact of ozone on a regional level of about 24%, Ontario are doing. Analysis of ozone concentration in four of Ontario's peak in the Southwest, with attention to the wind factor, it is estimated that the ozone in the U.S. from these places 50 to 60%.

Change the amount of NOx emissions:

Canada, NOx emissions since 1985, the total volume are relatively stable. Since 2000 the level of plants, big mergers and more than 100,000 tonnes of metal from the bottom of the NOx emission sources. Supplement in 2000 within the framework of ozone in the air quality in Canada and the U.S., Canada, Ontario in the south central and southern parts of the 39,000 tonnes of fossil fuels by power plants for an annual limit on emissions of NO2 and 5,000 tonnes of Quebec. Also NOx emissions from industrial boilers to reduce emissions and fuel consumption of vehicles and measures to reduce the new standard will be established. Canada's obligations to the territory's annual emissions of NOx in the meeting are (defined as central and southern Ontario and southern Quebec), with almost 39% from 1990 to 2010 defined.

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