环境问题（Environmental problems）.docVIP

环境问题（Environmental problems） What are the environmental problems China faces now? According to the data published in the twenty-first Century agenda for Chinas environmental protection and the China Environmental Status Bulletin 1996, the main data of Chinas current environmental conditions are as follows: 1) atmospheric environment * Chinas current air pollution is equivalent to the level of pollution in developed countries in 50s and 60s. Air pollution is mainly coal smoke pollution, the main pollutants are soot and sulfur dioxide, of which industrial sulfur dioxide emissions account for about 70%; * the trend of automobile exhaust pollution in major cities is increasing. Nitrogen oxides have become a major pollutant in the air of some major cities. Guangzhou and Beijing, followed by Shanghai, Anshan, Wuhan, Zhengzhou, Shenyang, Lanzhou, Dalian, Hangzhou and other cities; * more than 600 cities in the country have less than 1% of the urban air quality standards in line with the national standards; * the total suspended particulates and Dustfall in the large and medium-sized cities in the country are basically above the national standards; * in 1996, the area of acid rain in our country expanded rapidly, about 40% of its land area, which greatly affected Chinas crops, forests and so on. Only Jiangsu, Zhejiang and other 7 province due to acid rain caused by 150 million acres of farmland production, annual economic losses of about 3 billion 700 million yuan, 5 billion 400 million yuan loss of forest ecological benefits. The frequency of acid rain is greater than 90% of the city of Yibin, Hengyang, Ganzhou, Changsha; acid rain frequency is greater than 80% of the city as well as Wuzhou, Xiamen, Huaihua, Nanchang, Tumen; acid rain frequency is greater than 70%, Guangzhou and Leshan. 2) water resources and water environment * Chinas water resources are tight, and the per capita water resources are only 1/4 of the worlds per capita; * more than 300 cities in the country