Acid Deposition, The Economic Losses Caused By The Material Damage Estimates

The damage to materials caused by acidic matter in atmosphere is the main portion of the economic loss caused by acid precipitation. For the rececent years, lots of studies on economic loss have done by domestic researchers, but there is few of case studies. By analyzing the damage mechanism to materials and using the dose – response functions,this paper presents a investigation method of the stock at risk and using the analytical method to calculate the loss of the materials, which may be provide a new reference to the loss of the acid precipitation in the atmosphere.In our country, the main factors that affect acid precipitation are the H+ and SO2 in the acidic matter. The effects on the south cities of the H+ and SO2 are considered first in this paper, the target year is 2001 and Guang Zhou is selected as the representative city. The calculated results show that the damage to galvanized steel and security net which is made of galvanized steel is the most serious, the damage to bicycles is the next and the economic loss of the marble and granite accounts for some proportion, which indicate that acid precipitation damages the metal seriously and accelerates the corrosive process of other materials. The economic loss is caculated in the south of the acid rain area and it is proved that economy is badly affected by the damage to the materials caused by acid precipitation. In the end, Ji Nan is chosen as the typical city in the north and the economic loss of damage to the materials is caculated approximatively, and the same method is used to the other north cities based on GDP. Analyzing the results between the south and the north, we have found the acid precipitation has more effects to the south cities.