Excessive heavy metal pollution in Qujing Reservoir, Yunnan Province.

Xinhuanet Kunming August 18 Report: According to the website of the Pearl River Water Conservancy Commission of the Ministry of Water Resources, the investigation results of the investigation team of the Pearl River Commission show that the "pollution incident caused by illegal dumping of chromium slag" in Qujing City, Yunnan Province is a serious incident that affects the drinking water safety of people and livestock. Among them, in the chromium slag yard of Luliang Chemical Co., Ltd., due to leakage and other reasons, hexavalent chromium was detected to exceed the standard.

According to reports, the purpose of the investigation team of the Pearl River Committee is to assess the impact of the incident on the drinking water safety of people and livestock, as well as on the water quality of Nanpanjiang River and the lower reaches of the Yangtze River. After investigation, Qilin District, Qujing City, where the incident occurred, was the worst drought year in the past 50 years, with less effective rainfall and a large drought range, and the situation of water supply security and water resources protection was very severe. In June, there was a small amount of rainfall in Qujing city, which washed away illegally dumped chromium slag and leached it into nearby water bodies, causing some livestock to die after drinking stagnant water.

The investigation results of the Pearl River Committee show that no obvious hexavalent chromium pollution has been detected in sensitive water bodies such as Huangnibao Reservoir, the upstream and downstream of Nanpanjiang Xiaqiaozha. In the chromium slag yard of Luliang Chemical Co., Ltd., it was found that hexavalent chromium exceeded the standard due to leakage and other reasons.

According to the Qujing Municipal Government Information Office, on June 5438+08, the investigation team of the Ministry of Environmental Protection arrived in Qujing to further investigate the chromium slag pollution.

Li Chunrong, deputy director of Qujing Hydrological Bureau, revealed that as early as 2009, the Hydrological Bureau had detected that hexavalent chromium exceeded the standard by more than 2 times in Nanpanjiang near Heping Science and Technology.