Chinanews, Beijing, September 19 - - Last week, the Social Investigation Center and Tencent.com have jointly conducted a survey covering 8,238 people, on the water security issue. More than 97.2% of the respondents are anxious about severe water pollution; 68.4% of the respondents even believe water pollution has reached a fatal condition; 89.6% think water quality has been deteriorating; and 83.7% are deeply worried about water security.This year, several blue-algae crises caused by pollution broke out in China, affecting hundreds of thousands of people.“The ground water of 50% of Chinese cities has been polluted polluted, and 300 million rural population have no water security to speak of at all,” said Zhou Shengxian, the director of the National Environmental Protection Administration.In 2005 alone, 693 water pollution accidents took place in China.Wang Jing, a law professor from Peking University, suggested that China should issue a law to define the responsibilities of local government officials in water pollution and the central government should authorize local governments to control water pollution.