|
KMID : 1024520020110121299
|
|
Journal of the Environmental Sciences
2002 Volume.11 No. 12 p.1299 ~ p.1305
|
|
|
Some heavy metal concentration of surface sediments from the southwestern coast of Korea
|
|
Jeon Soo-Gyeong
Cho Yeong-Gil
|
|
|
Abstract
|
|
|
|
Thirty sediment samples of the <63 fraction collected from the southwestern coast of Korea were analysed for their heavy metal (Fe, Mn, Cr, Co, Cu, Ni, Zn and Pb) concentration. The results show that sediment texture plays a controlling role on the total metal concentrations and their spatial distribution. A single lM HCl extraction procedure was used in order to assess the environmental risk of heavy metals in bottom sediments. The non-residual fraction was the most abundant pool for Mn and Pb in most samples, which means that this metals are highly avaliable in these sediments. Cr, Ni, Fe, Co, Zn and Cu were mainly associated with the residual fraction, suggesting that their concentrations are controlled significantly by transport processes with the fine particles as carriers from diffuse pollution source. Concentration enrichment ratios(CER) were calculated from the non-residual contents and their values allowed us to classify the sediments according to their environmental risk.
|
|
|
KEYWORD
|
|
|
Sediment, <63[μm] fraction, Heavy metal, lM HCl extraction, Non-residual fraction, Concentration enrichment ratios
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|