摘要:
河流是工农业及生活用水的主要来源之一,保护好河流水资源对人类具有重要意义,尤其是对于缺水的煤矿区河流更是如此。为查明濉溪县浍河水质的污染状况,对38个水样中的NH3-N含量进行了测试,并利用多种方法对其污染状况及污染来源进行了分析。结果表明:与国家地表水环境质量标准相比,浍河水质较为良好,18个水样为I类水,17个水样为II类水,3个水样为III类水。空间自相关分析表明,NH3-N含量空间差异性较大,含量异常点主要聚集在河流的上段和中下段。多源分析查明了氨氮的三个来源:源1为环境背景值(0.006~0.165 mg/L),源2和源3则与人为活动有关。
Abstract:
River is one of the main sources of agricultural, industrial and domestic uses, and it is of great sig-nificance for human beings to protect the water resources of rivers, especially the ones in the coal mining area with water shortage. Forgetting the information about the pollution status of Huihe River in the Suixi County, the NH3-N contents in 38 water samples were measured, and the pollution status and the multi-sources have been analyzed by a series of methods. The results show that the water quality of the Huihe river is good (18, 17 and 3 samples are classified to be class I, II and III, respectively, when compared with the national surface water environmental quality standards). Spatial autocorrelation analysis shows that the distribution of the NH3-N contents vary significantly from area to area, and the samples with high contents are located in the upper and lower-middle section of river. Multi-source analysis identified three sources: the source 1 is the environmental background (0.006 - 0.165 mg/L), whereas the source 2 and 3 are related to human activities.