Acid rain

Acid Rain

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Acid rain due to its adverse effects and problems is an issue of major concern worldwide , however , due to low toxic emissions the problem is not that serious for Australia as it is for rest of the world

Acid rain basically becomes acidic when rain water dissolves carbon dioxide and other pollutants from the atmosphere which results in ph of acid rain to drop below the generally accepted ph of rain that

is between ph 5 - 6

Causes of acid rain has been a widely debated issue for years , however latest scientific findings have cleared the matter to a great extent

The basic cause is the presence of the two elements that dissolve in the rain to make it acidic sulfur dioxide and nitrogen dioxide that are emitted to our atmosphere from the on going industrial processes and hence those areas where industrial processes are at their peak are more effected by this rain . Power generation plants that use coal as their energy resource are the ones contributing the most in sulfur dioxide emission and adds up to 70 of that present in the world . Also Increasing number of automobiles and the use of fossil fuels for power generation are the major sources for the emission of nitrogen into the atmosphere . Although these human causes contribute mostly to this problem , however , natural factors like fires , volcanic eruptions and bacterial decomposition also emit nitrogen dioxide into the atmosphere to a great extent

By traveling thousands of miles in the air , these polluted particles are exposed to other harmful elements present in the atmosphere and when these mix , they may form harmful chemicals that come down to us in the form of rain , snow , hail , fog , frost or dew

These chemicals can and have effected us in many ways

Acid rain is a threat to a very important resource of our ecosystem that is the trees , as it causes them to loose their leaves , turn brown stunted growth , damaged barks and other problems like diseases and insects . This can happen either through direct exposure of trees with the rain or exposure of soil to acid rain . Acid rain also absorbs helpful chemicals like calcium and potassium before trees can . Trees get weak and less resistant to harsh weather and climatic changes

With the ability to tamper and obliterate most durable materials , acid rain is the reason for deterioration and corrosion of old buildings monuments and weathering of tombstones as well . For example , the Taj Mahal in India is turning its white luster into pale shade due to exposure to acid rain . Moreover automobile industry considers acid rain as a type of corrosive for automotive bodies and parts as it leaves irregular marks and disfigures plane surfaces that can only be repaired through repainting once they are effected

Acid rain is also hazardous to human health as well as it can cause asthma , bronchitis...