Acid Rain

I always remember this cold rainy night forever, as if I shouted at the perception of death, I always woke up the eve of the night. At that time we were still young and did not know what this life brought to us. This is careless, I can care less than then ... My whole world may collapse at the moment, only crash, turn or scream, I mind more We can do .... .. We have so many medicines and we can not care about life, love, family ... a lot when we think that I am dead ... , I can not care anymore.

Today, acid rain is becoming a problem more and more. Acid rain is a complicated problem. Diffusion and destruction of acid rain, mainly caused by air pollution, includes the life cycle of animals and plants in weather, chemistry, soil and land, lakes and streams. (1) In pH, the number 7 is neutral acidity. Substances with an amount less than or equal to 7 are considered acidic. Any number of about 7 is considered basic. It is noteworthy that the pH is logarithmic, that is, the substance with pH 6 is 10 times more acidic than the substance with pH 6. In general, pH 6 has been used as a baseline to identify acid rain, but controversial about the tolerance of this value. Interestingly, pH 6 is the pH of carbon dioxide in equilibrium with distilled water. Therefore, acidic flow is defined as rainfall that exceeds anticipated rainfall expected acidity.

Acid rain means what it means - rain is acidic. "Acid rain" is defined as rainwater with a pH less than 6. Due to dissolved gases in the rain, the rain becomes acidic. Approximately 70% of acid rain is formed by dissolved sulfur dioxide (SO 2) forming sulfuric acid. The remaining 30% comes from various nitrogen oxides (mainly NO 2 and NO 3 which have already adopted Mane Nox). A small amount of hydrochloric acid also constitutes hydrochloric acid. The expression is as follows.