Distribution and source analysis of aluminum in rivers near Xi'an City, China

作者：Wang Dongqi; He Yanling^*; Liang Jidong; Liu Pei; Zhuang Pengyu

来源：Environmental Monitoring and Assessment, 2013, 185(2): 1041-1053.

DOI：10.1007/s10661-012-2612-2

• Aluminum
• Spatial and temporal distribution
• Source analysis
• Water environment

To study the status and source of aluminum (Al) contamination, a total of 21 sampling sites along six rivers near Xi'an City (Shaanxi province, China) were investigated during 2008-2010. The results indicated that the average concentration of total Al (Al-t) in the six rivers increased by 1.6 times from 2008 to 2010. The spatial distribution of Al-t concentrations in the rivers near Xi'an City was significantly different, ranged from 367 mu g/L (Bahe River) to 1,978 mu g/L (Taiping River). The Al-t concentration was highest near an industrial area for pulp and paper-making (2,773 mu g/L), where the Al level greatly exceeded the water quality criteria of both the USA (Criterion Continuous Concentration, 87 mu g/L) and Canada (100 mu g/L). The average concentration of inorganic monometric aluminum (Al-im) was 72 mu g/L which would pose threats to fishes and other aquatic lives in the rivers. The concentrations of exchangeable Al (Al-ex) in the sediment of the Taiping River sampled were relatively high, making it to be an alternative explanation of increasing Al concentrations in the rivers near Xi'an City. Furthermore, an increasing Al level has been detected in the upstream watershed near Xi'an City in recent years, which might indicate another notable pollution source of Al.

• 出版日期2013-2
• 单位西安交通大学