Acid Rain

Acid rain is a serious problem with disastrous effects. Each day this serious problem

increases, many people believe that this issue is too small to deal with right now this

issue should be met head on and solved before it is too late. In the following paragraphs I

will be discussing the impact has on the wildlife and how our atmosphere is being

destroyed by acid rain.

CAUSES Acid rain is a cancer eating into the face of Eastern Canada and the North

Eastern United States. In Canada, the main sulphuric acid sources are non©ferrous

smelters and power generation. On both sides of the border, cars and trucks are the main

sources for nitric acid(about 40% of the total), while power generating plants and

industrial commercial and residential fuel combustion together contribute most of the

rest. In the air, the sulphur dioxide and nitrogen oxides can be transformed into sulphuric

acid and nitric acid, and air current can send them thousands of kilometres from the

source.When the acids fall to the earth in any form it will have large impact on the

growth or the preservation of certain wildlife.

NO DEFENCE Areas in Ontario mainly southern regions that are near the Great Lakes,

such substances as limestone or other known antacids can neutralize acids entering the

body of water thereby protecting it. However, large areas of Ontario that are near the

Pre©Cambrian Shield, with quartzite or granite based geology and little top soil, there is

not enough buffering capacity to neutralize even small amounts of acid falling on the soil

and the lakes. Therefore over time, the basic environment shifts from an alkaline to a

acidic one. This is why many lakes in the Muskoka, Haliburton, Algonquin, Parry Sound

and Manitoulin districts could lose their fisheries if sulphur emissions are not reduced

substantially.

ACID The average mean of pH rainfall in Ontario's Muskoka©Haliburton lake country

ranges between 3.95 and 4.38 about 40 times more acidic than normal rainfall, while

storms in Pennsilvania have rainfall pH at 2.8 it almost has the same rating for vinegar.

Already 140 Ontario lakes are completely dead or dying. An additional 48 000 are

sensitive and vulnerable to acid rain due to the surrounding concentrated acidic soils.Ф

ACID RAIN CONSISTS OF....? Canada does not have as many people, power plants or

automobiles as the United States, and yet acid rain there has become so severe that

Canadian government officials called it the most pressing environmental issue facing the

nation. But it is important to bear in mind that acid rain is only one segment, of the

widespread pollution of the atmosphere facing the world. Each year the global

atmosphere is on the receiving end of 20 billion tons of carbon dioxide, 130 million tons

of suffer dioxide, 97 million tons of hydrocarbons, 53 million tons of nitrogen oxides,

more than three million tons of arsenic, cadmium, lead, mercury, nickel, zinc and other

toxic metals, and a host of synthetic organic compounds ranging from polychlorinated

biphenyls(PCBs) to toxaphene and other pesticides, a number of which may be capable

of causing cancer, birth defects, or genetic imbalances.

COST OF ACID RAIN Interactions of pollutants can cause problems. In addition to

contributing to acid rain, nitrogen oxides can react with hydrocarbons to produce ozone,

a major air pollutant responsible in the United States for annual losses of $2 billion to 4.5

billion worth of wheat, corn, soyabeans, and peanuts. A wide range of interactions can

occur many unknown with toxic metals. In Canada, Ontario alone has lost the fish in an

estimated 4000 lakes and provincial authorities calculate that Ontario stands to lose the

fish in 48 500 more lakes within the next twenty years if acid rain continues at the

present rate.Ontario is not alone, on Nova Scotia's Eastern most shores, almost every

river flowing to the Atlantic Ocean is poisoned with acid. Further threatening a $2

million a year fishing industry. Ф Acid rain is killing more than lakes. It can scar the

leaves of hardwood forest, wither ferns and lichens, accelerate the death of coniferous

needles, sterilize seeds, and weaken the forests to a state that is vulnerable to disease

infestation and decay. In the soil the acid neutralizes chemicals vital for growth, strips

others from the soil and carries them to the lakes and literally retards the respiration of

the soil. The rate of forest growth in the White Mountains of New Hampshire has

declined 18% between 1956 and 1965, time of increasingly intense acidic rainfall. Acid

rain no longer falls exclusively on the lakes, forest, and thin soils of the Northeast it now

covers half the continent.

EFFECTS There