The Distribution of Ammonia Nitrogen in Groundwater of Shunyi and Its Influencing Factors
- VernacularTitle:北京市顺义区地下水中氨氮的分布及其影响因素
- Author:
Yutang LI
;
Guoxin ZHEN
;
Dongwan CHEN
- Publication Type:Journal Article
- Keywords:
Ground water;
Ammonia nitrogen;
Organic pollution;
Geological factors
- From:
Journal of Environment and Health
2007;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To discover the distribution of ammonia nitrogen in groundwater of Shunyi District and its influencing factors. Methods 286 monitored points in low-flow period and 100 in high-flow period were chosen in 19 towns in Shunyi District. Concentrations of ammonia nitrogen, iron and manganese, and the total bacterial count of water samples were determined and evaluated based on the Guidelines for Drinking Water Quality and related standard during Jan.-Mar., Aug.-Sep., in 2005. Results All the monitored points were deep groundwater. The median of ammonia nitrogen concentration in groundwater was 0.010 mg/L in low-flow period, and 0.140 mg/L in high-flow period. The relativity was not found between the concentration of ammonia nitrogen,total bacterial count in water sample and pollution source around the well. However the concentration of ammonia nitrogen was positively correlated with the concentration of nitrite nitrogen(r=0.224, P
