WaterScarcityandPollution.pptVIP

Water Scarcity and Pollution General Institute for Water Resources and Hydropower Planning Design Ministry of Water Resources March 2007 Contents Water resources in China The cost estimation of water scarcity caused by water pollution National water resources assessment Water resources in China Water quantity Water quality water use Water scarcity status water quantity－calculating basins Water quantity The changes of surface water The changes of surface water The changes of surface and ground water resources water quality status The proportion of water function zone meeting standards Water use The changes of water supply during 1980-2000 The changes of water supply in the north China The ratio of total use to total water available in 2000 Water use equal or exceed to the available water in the north China water scarcity in different basin (108m3) The cost estimation of water scarcity caused by water pollution Main concerns Methods to estimate the water scarcity caused by water pollution The cost of water scarcity Strategic measures to mitigation Main concerns Water scarcity caused by pollution：water scarcity (including groundwater depletion), sources water of supply not meeting standards. Cost：①Health, ②production, ③ecology, ④increase of treat cost of water supply not meeting standard. Here only ② and ④ considered. Methods to estimate the quantity of water scarcity caused bypollution （1）The north area ① The quantity of supply of source water which were not meeting standards ② Water scarcity (repressing water demand) ③ Groundwater depletion ④ Available water ⑤ Water quality status Methods to estimate the quantity of water scarcity caused by pollution （2）The south area ① The quantity of supply of source water which were not meeting standards ② Groundwater depletion ③ Water quality status The cost of water scarci