|关键词: 全国 酸雨 现状 趋势
|Analysis on the Acid Rain from 2005 to 2011 in China
|The monitoring data on the acid rain from 2005 to 2011 in China were studied. The ratio of acid rain city, the frequency and area of acid rain were decreasing, however situation was still severe. The type of acid rain was mainly sulfuric acid rain, and the contribution of nitrate to precipitation acidity was increasing year by year. The sulfur deposition flux showed decreasing trend and the nitrate deposition flux showed increasing trend compared with those in 2005. The annual pH value was at the same level with the USA, Japan and other East Asian countries, however the deposition flux of the major acidic ions was at a high level.
|Key words: China acid rain status trend