State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
J Hazard Mater. 2010 Oct 15;182(1-3):259-65. doi: 10.1016/j.jhazmat.2010.06.023. Epub 2010 Jun 11.
Excessive intake of manganese can damage the nervous system of the human body. In August 2009, the manganese content of the drinking water source in Yancheng exceeded the national standard of drinking water source, which influenced the daily life of the local residents. The aim of this study was to investigate the factors leading to the manganese content of river water in Yancheng exceeding the national standard. To the data, the manganese content of surface water in Yancheng already met the national standard of drinking water source in September 2009, but the manganese content of river sediment was relatively high, especially in Mangshe River and Tongyu River. It was worthwhile to note that the soluble manganese content of the sediment in Mangshe River was even as high as 270 mg kg(-1), which suggested that the release of manganese from the sediment was the major cause of the pollution. The manganese content of the soil near the rivers was also determined, and the results indicated that the wastewater and waste slag discharged by the stainless steel factories nearby were the main pollution sources of manganese. Furthermore, the environmental factors affecting the release of manganese from the sediment were also investigated.
过量摄入锰会损害人体的神经系统。2009 年 8 月，盐城饮用水水源中的锰含量超过了饮用水水源国家标准，影响了当地居民的日常生活。本研究旨在调查导致盐城河水锰含量超过国家标准的因素。数据显示，2009 年 9 月，盐城地表水的锰含量已达到饮用水水源国家标准，但河底沉积物的锰含量相对较高，特别是在芒砀河和通榆河。值得注意的是，芒砀河沉积物中的可溶锰含量甚至高达 270mg/kg，这表明锰从沉积物中的释放是造成污染的主要原因。还测定了河流附近土壤中的锰含量，结果表明，附近不锈钢厂排放的废水和废渣是锰的主要污染源。此外，还研究了影响锰从沉积物中释放的环境因素。
