石家庄市地下水中氮污染分析
Groundwater nitrogen contamination in Shijiazhuang city
摘要 通过对石家庄市地下水中"三氮"污染状况的分析,发现硝酸盐是地下水中的主要氮污染物。利用氮同位素方法分析了地下水中硝酸盐氮的来源。讨论了人类开采地下水和施放环境物质对地下水中氮聚集的影响。在人类活动影响强度小的地区,地下水中的硝酸盐污染强度大大低于市区。NO3-浓度与硬度变化趋势表明:氮污染与硬度等指标值升高有一定的联系,但在不同的水文地球化学环境中,在迁移和转化等方面又有着自已的特性。
Abstract:
The history and current situation of nitrogen contamination indicates that nitrate was the main pollutant among the nitrogen compounds. The sources of the nitrate in groundwater were determined by using the nitrogen isotope method. The impacts of humsr activities such as groundwater exploitation and discharging contaminant on the accumulation of nitrate were discussed. The monitoring data shows that the pollution in urban area is much more serious than that of the rural area. The comparison of changes of nitrate concentration and hardness indicates that there is a relationship between the nitrogen pollution and the increasing of other compounds, but nitrogen compounds have their own characteristics on migration and transformation and accumulation in different hydrochemical environment.
作者: 毕二平 李政红
作者单位: 中国地质大学环境科学系, 国土资源部水文地质环境地质研究所,
刊 名 水文地质工程地质 ISTICPKU
年,卷(期): 2001, 28(2)
分类号: X131.2
机标分类号: X51 X50
在线出版日期: 2004年1月8日