The rainwater is slightly acidic in nature whose pH value is 6.0 or 5.5. If the pH value of rainwater is below 5.5, then it is called acid rain. How does acid rain influence the quality of water?
Generally the pH of rain water is acidic (pH 5.6) due to presence of a weak acid known as carbonic acid which is formed from the reaction of atmospheric carbon dioxide with water. Therefore, the precipitation in which pH below 5.6 constitute the acid rain. Acid rain causes the acidification of lakes and rivers thus lowering their productivity. More than 10,000 lakes in Sweden have become acidified. Thousands of lakes in United States of America, Canada, Norway have become unproductive due to acidity. Population of fishes has decreased to serious extent. The fishless areas are now fish graveyards.
Generally the pH of rain water is acidic (pH 5.6) due to presence of a weak acid known as carbonic acid which is formed from the reaction of atmospheric carbon dioxide with water. Therefore, the precipitation in which pH below 5.6 constitute the acid rain. Acid rain causes the acidification of lakes and rivers thus lowering their productivity. More than 10,000 lakes in Sweden have become acidified. Thousands of lakes in United States of America, Canada, Norway have become unproductive due to acidity. Population of fishes has decreased to serious extent. The fishless areas are now fish graveyards.
Dear Sudip Saha,
Precipitation becomes acidic when it mix with atmospheric gases (trace gases) such as sulphor and nitrogen ( making sulphuric acid and nitros oxide). This also leads to increased adsorption of aluminium from soil. The delivery of this water to streams can effect water quality and harm the living the aquatic organisms.
Well,
The natural values of pH in the water range between 6.5 and 8.5 and the water in which the pH are outside these limits is considered to be contaminated. The exit of the pH value from the natural boundary has different effects on the aquatic organisms, which leads to the destruction of many sensitive species, especially in the stage of the larvae. Most mineral compounds that may be deposited in the bottom of ponds, rivers, lakes or seas, many of them are poisonous and dissolve again in water at change the pH value to pH of less than 7.
Sincerely
Acid rain if one time, it will effect on the pH of water likewise the biodiversity of oceans, If repeatedly occurred then its a big trouble to earth because water will effect as well as the terrestrial part also as all lives are survive with water. So it will effect over the globe.
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