Why is Shanghai considered a pollution-induced water shortage city?

    Answer: Geographically speaking, Shanghai is a city abundant in its water resources?? however, due to human activities (living, industry and agriculture, etc.), almost all surface water has been polluted in different degrees. The water quality, including that of Huangpu River, cannot meet the drinking water quality standards. Besides, the deteriorating tendency in the quality of water in Taihu Basin and the Yangtze River flowing through Shanghai, coupled with the impact of sea water upstream, makes the real source of water less and less, causing Shanghai to be a pollution-induced water shortage city.