首页|期刊导航|中国地球化学学报(英文版)|Farmland mercury contamination in the vicinity of an organic chemical factory in Guizhou, China
中国地球化学学报(英文版)2008，Vol.27Issue(4)：424-430,7.DOI:10.1007/s11631-008-0424-4
Farmland mercury contamination in the vicinity of an organic chemical factory in Guizhou, China
Farmland mercury contamination in the vicinity of an organic chemical factory in Guizhou, China
摘要
Abstract
This study assesses the level of contamination of Hg in farmland soils along the irrigating channel downstream from Guizhou Organic Chemical Factory (GOCF), where metallic mercury is used as a catalyst to produce acetic acid. The total input of mercury into the environment, as announced by GOCF, is 140 t in the past 30 years (1971-2000). Sampling sites were chosen based on the distance from the source of pollution-the chemical factory. A total of 39 samples were collected from the study area and analyzed for total mercury concentrations and methyl mercury concentrations. The characteristics of vertical and horizontal distributions of total mercury and methyl mercury in the study area (farmland) are described in this paper. Much attention was paid to the transformation of inorganic Hg into organic mercury species in soils as well. The results showed that the farmland has been heavily contaminated by Hg. Land cultivation activity, land utilization style and distance from the pollution source could be the dominant factors controlling the distribution of THg and MeHg. It is observed that active transformation of inorganic Hg into organic mercury species (MeHg) usually takes place in paddy soils.关键词
mercury/distribution/farmland soil/speciation transformationKey words
mercury/distribution/farmland soil/speciation transformation分类
天文与地球科学引用本文复制引用
ZHANG Junfang,QU Liya,FENG Xinbin,ZHANG Wei,GUO Yanna,LIN Kai,LI Mei..Farmland mercury contamination in the vicinity of an organic chemical factory in Guizhou, China[J].中国地球化学学报(英文版),2008,27(4):424-430,7.基金项目
This research project was financially supported by the National Natural Science Foundation of China (Grant Nos. 20467001 and 40532014). （Grant Nos. 20467001 and 40532014）
