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2015 | 24 | 4 |

Tytuł artykułu

Distribution characteristics, pollution assessment, and source identification of heavy metals in sediments of wetland lakes

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The aims of current study are to asses the levels of heavy metals (Cr, Cu, Ni, Fe, Zn, Co, Pb, and Cd) in sediments of lakes in Yangtze wetland and discuss the relationships between the sources and human activities. A total of 54 samples covering seven lakes along the Yangtze route in Anqing were selected. The concentrations of metals in lake sediments were (mg-kg⁻¹): Cr, 4.08~12.58; Cu, 22.40~74.36; Ni, 29.89~142.17; Fe, 22899.20~50956.40; Zn, 102.31~242.04; Co, 8.35~26.89; Pb, 23.38~88.77; and Cd, 0.29~2.95. The situation of Xizi Lake was the most serious among the seven lakes investigated. Geoaccumulation index (Igeo) analysis showed that overall risk of heavy metals in sediments was approximately in the order: Cd > Pb = Zn = Cu = Ni > Fe > Co = Cr. The results of principal component analysis (PCA) suggested the main sources of Cd, Cu, Zn, Ni, and Pb on PC 1 were fuel combustion, metal smelting, industrial manufacturing, and other human activities, while Fe on PC 2 originated fromrock weathering and other geochemical processes.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

24

Numer

4

Opis fizyczny

p.1525-1533,fig.,ref.

Twórcy

autor
  • Anhui Academy of Science and Technology, 312 Suixi Rd, 230031 Hefei, PR China
  • College of Tea and Food Science and Technology, Anhui Agricultural University, 230036 Hefei, Anhui, China
autor
  • Anhui Academy of Science and Technology, 312 Suixi Rd, 230031 Hefei, PR China
autor
  • Anhui Academy of Science and Technology, 312 Suixi Rd, 230031 Hefei, PR China
autor
  • Anhui Academy of Science and Technology, 312 Suixi Rd, 230031 Hefei, PR China
autor
  • Anhui Academy of Science and Technology, 312 Suixi Rd, 230031 Hefei, PR China

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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