Water is the source of life, but with the geometric growth of our population, the chaos of modern industrial wastewater emission misplacing, urban waste, pesticide spraying, etc. in rural areas, causing severe river pollution, already a few fresh water resources exacerbate the shortage can not be used by man. According to statistics, more than 1000 kinds of water pollution has reached 2 (2221) mainly for organic chemicals, carbide, metal objects, of which there are 765 kinds of water (190 species on human health, and 20 kinds of cancer, 23 kinds of suspect cancer , 18 kinds of tumor promoters, 56 kinds of mutation: Tumor). In China, only less than 11% of the people in line with our health standards for drinking water, while up to 65% of people drinking muddy, bitter alkaline, fluoride, arsenic, industrial pollution, infectious diseases, water. 200 million people drink tap water, 7,000 million people drink high fluoride water, 3000 million people drink water with high nitrate, high-fluoride drinking water, 5,000 million people, 1.1 billion people drink water with high hardness.
Hai Hai: the first of the seven major river pollution
Status: Haihe River Basin in northern China, including two major river systems Hai and Luan River. Haihe river system mainly by Zhang Wei River, Ziya River, Daqing River, Yongding River, Chaobai, North Canal, until the composition Jiyun, including steep Hai River, MA cheek River drainage channel until the plain; Luan river system, including Jidong Zhu River.
Under the “National Environment Quality Report “(1993) results, the Haihe River main pollutant is ammonia nitrogen, followed by permanganate index and biochemical oxygen demand, also Oil Type of pollution is very serious, increasingly seen as major pollutants. Present serious pollution of Haihe River, worse than Grade more than 50%. Cangzhou major pollution reaches the Ziya River and South Canal, the canal north of Beijing, Zhangjiakou and Tianjin Haihe of Yang.
Reasons: most of the Haihe River Basin, including Hebei province, northeastern Shanxi, Shandong Province, north of the small area in Inner Mongolia and Beijing and Tianjin, with a total area of 319,000 km 2. Average annual runoff for the 29.18 billion m, concentrated in the 7 to 10 months (about 70%), the national average per capita quantity of water is 10.5%, which is the national contradiction between water supply and demand the most prominent areas.
Haihe River as the constant increase in the use of surface water, river Discharge for the sharp drop, coupled with increased urban and industrial sewage, polluted the river average diameter ratio as high as 0.12. Many river Water pollution Serious.
Liaohe: Liaohe River water quality in general poor, worse than Grade 40.6%
Pollution reasons: First, the extensive mode of economic growth adversely affected. Liao River Basin has long formed the coal, oil, Steel And other heavy industry dominated the industrial structure, resource development strength, low efficiency, pollution emission and high strength.
Second, the low level of pollution control of industrial pollution sources. Industrial waste water basin total about 1 / 3, showing a growing trend. Paper, Chemical industry , Metallurgy, food, pharmaceutical and other polluting industries, some businesses obsolete equipment, backward technology, pollution control facilities in the event of default and more wastewater treatment facilities, inadequate, difficult to achieve a stable discharge standard.
Third Municipal Wastewater Treatment Low efficiency. As of the end of 2005, the Liaohe River Basin into 19 urban sewage treatment plants, processing 2.42 million tons / day, but the actual capacity is only about 50%, part of the sewage treatment plant after completion of a long-term can not function properly.
Fourth, the environment are not adequately regulated. Liao River Basin environmental monitoring, early warning, emergency response and environmental law enforcement capacity is weak in some areas failed to observe the phenomenon is more prominent lax enforcement of environmental law is not enough punishment, corporate waste-water treatment, excessive discharge, total discharge of the phenomenon can not be super-effective containment.
Songhua River Songhua River: flowing through the commodity grain base in the “toxic water”
Source of Songhua River Nen River North, South source Second Songhua River drainage area of 55.68 million square meters, multi-year surface runoff 73.47 billion cubic meters, is an important industrial base and commodity grain production bases. However, with the growing population and rapid development of industrial and agricultural production, Nen, the second Songhua River, the water quality of Songhua River are subject to different levels of pollution. Excessive pollution is the main project of ammonia, nitrogen, permanganate index, volatile phenol, BOD and dissolved oxygen, which is due to the discharge of urban waste water and more serious water shortages within the basin.
2005 11 months, CNPC Jilin Petrochemical Company in Jilin explosion, the explosion of plant only a few hundred meters from the Songhua River after the blast, about 100 tons of benzene substances (benzene, nitrobenzene, etc.) into the Songhua River, causing serious pollution of the river, along the millions of residents are affected. BOLA TANGKAS