title: Mercury speciation, distribution, and bioaccumulation in a river catchment impacted by compact fluorescent lamp manufactures.
abstract: The influence from the manufacturing of compact fluorescent lamps (CFL) on mercury (Hg) speciation and distribution in river catchments nearby a typical CFL manufacturing area in China was investigated. Water, sediment, river snail (Procambarus clarkii), and macrophyte (Paspalum distichum L.) samples were collected. Total Hg (THg) and methylmercury (MeHg) concentrations in water ranged from 1.06 to 268 ng · L(-1) and N.D. -2.14 ng · L(-1), respectively. MeHg was significantly positively correlated with THg in water. THg and MeHg in sediment ranged from 15.0 to 2480 and 0.06 to 1.85 ng · g(-1), respectively. River snail samples exhibited high concentrations of THg (206-1437 ng · g(-1)) and MeHg (31.4-404 ng · g(-1)). THg and MeHg concentrations in root of P. distichum L. were significantly higher than those in shoot, indicating that THg and MeHg in the plant were mainly attributed to root assimilation. A very high bioaccumulation factor (20.9 ± 22.1) for MeHg in P. distichum L was noted, suggesting that P. distichum L. might have a potential role in phytoremediating MeHg contaminated soil due to its abnormal uptake capacity to MeHg.
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agricultural and Forest University, Lin'an, Zhejiang Province, 311300, People's Republic of China.|State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, People's Republic of China.|Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Hangzhou, 311300, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, People's Republic of China. fengxinbin@vip.skleg.cn.
authors.forename: Xinbin
authors.initials: X
authors.lastname: Feng
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agricultural and Forest University, Lin'an, Zhejiang Province, 311300, People's Republic of China.
authors.forename: Qiongzhi
authors.initials: Q
authors.lastname: You
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agricultural and Forest University, Lin'an, Zhejiang Province, 311300, People's Republic of China.|Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Hangzhou, 311300, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agricultural and Forest University, Lin'an, Zhejiang Province, 311300, People's Republic of China.|Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Hangzhou, 311300, China.
authors.forename: Yucheng
authors.initials: Y
authors.lastname: Cao
authors.affiliation: Department of Biology and Croucher Institute for Environmental Sciences, Hong Kong Baptist University, Hong Kong, People's Republic of China.
authors.forename: Anna Oi Wah
authors.initials: AOW
authors.lastname: Leung
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agricultural and Forest University, Lin'an, Zhejiang Province, 311300, People's Republic of China. shengchunwu@126.com.|Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Hangzhou, 311300, China. shengchunwu@126.com.
authors.forename: Shengchun
authors.initials: S
authors.lastname: Wu
mesh_terms: D000818:Animals; D003400:Astacoidea; D002681:China; D004784:Environmental Monitoring; D008029:Lighting / Q000295:instrumentation; D000072499:Manufacturing and Industrial Facilities; D008628:Mercury / Q000032:analysis*; D008767:Methylmercury Compounds / Q000032:analysis; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008767:Methylmercury Compounds; D014874:Water Pollutants, Chemical; D008628:Mercury
keywords: Aquatic ecosystem; Mercury contamination; Methylmercury; Paspalum distichum L.; Procambarus clarkii