Mercury concentration in the feathers of birds from various trophic levels in Fereydunkenar International wetland (Iran)

被引:23
作者
Ahmadpour, Mousa [1 ,2 ]
-Hai, Li Lan [1 ]
Ahmadpour, Mohsen
Hoseini, Seyed Hamid [3 ]
Mashrofeh, Abdolreza [4 ]
Binkowski, Lukasz J. [5 ]
机构
[1] Nanjing Forestry Univ, Coll Biol & Environm, Longpan Rd 159, Nanjing 210037, Jiangsu, Peoples R China
[2] Gorgan Univ Agr Sci & Nat Resources, Dept Environm Sci, Fac Fisheries & Environm Sci, Gorgan 4913815739, Iran
[3] Univ Malayer, Fac Nat Resources, Dept Environm Sci, Malayer 6751995863, Iran
[4] Tarbiat Modares Univ, Environm Forens Lab, Dept Environm Sci, Fac Nat Resource, Noor 64414356, Iran
[5] Pedag Univ Cracow, Inst Biol, Podbrzezie 3, PL-31054 Krakow, Poland
关键词
Hg; Wetland; Birds; Pollution; Feather; IBISES EUDOCIMUS-ALBUS; MIDWAY ATOLL; HEAVY-METALS; SEABIRDS; EMISSIONS; MALLARD; CHAIN; RISK;
D O I
10.1007/s10661-016-5671-y
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Mercury (Hg) is one of the main global pollutants that may biomagnify in food nets, especially in wetlands. Birds may be useful in the biomonitoring of Hg in such habitats and may even serve in vivo samples. This paper examined Hg concentration in the feathers of seven bird species foraging on Fereydunkenar International wetland (in 2013). Mean Hg concentrations found ranged from 0.005 +/- 0.002 mu g g(-1) d.w. (dry weight) (Common hoopoe) to 0.38 +/- 0.047 mu g g(-1) d.w. (Greylag goose). Significant differences in Hg concentrations were noted between bird species as well as between trophic levels (one-way ANOVAs, p < 0.001). The decrease in mean Hg concentration in feathers was as follows: Greylag goose > Northern pintail >= Gadwall >= Mallard > Eurasian bittern >= Little bittern > Common hoopoe. The position in the trophic chain significantly influenced Hg concentrations, which were the highest in omnivorous species. Hg concentrations may also depend on migration routes and breeding habitats, but the evaluation of the exposure exceeds the ambit of this paper. The Hg concentrations found generally were low, lower than the safe thresholds reported in the literature.
引用
收藏
页数:7
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