http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김원일 ( Kim Won Il ),정구복 ( Jeong Gu Bog ),이종식 ( Lee Jong Sig ),김진호 ( Kim Jin Ho ),신중두 ( Sin Jung Du ),윤순강 ( Yun Sun Gang ) 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3
Heavy metal contents in commercial horticultural growing media were investigated. Fifty-three samples were collected nationwide during 2000 to 2001 and heavy metals in the samples were analyzed by ICP-OES after acid digestion and 0.1 N HCl extraction. Average contents of total Cd, Cr, Cu, Ni, Pb, and Zn by acid digestion in the growing media were 0.69, 35.7, 14.9, 15.5, 12.7, and 54.8 ㎎/㎏ DW, respectively. The ranges of heavy metal in the growing media were 0-1.82, 0-259.8, 1.6-69.5, 0-60.7, 0-36.5, 12.9-124.0 ㎎/㎏ DW for Cd, Cr, Cu, Ni, Pb, and Zn, respectively. Heavy metal contents in the commercial horticultural growing media were showed lower levels than the permitted levels for quality control described by Korean Standard Analytical Method for Crowing Media. Average contents and ranges of 0.1 N HCl extractable heavy metals were 0.08 and 0-0.20 for Cd, 0.38 and 0-2.10 for Cr, 1.45 and 0-4.03 for Cu, 0.85 and 0-3.31 for Ni, 0.84 and 0-2.21 for Pb, and 30.68 and 0.18-88.45 ㎎/㎏ DW for Zn, respectively. These concentrations by 0.1 N HCl extraction showed much less levels than those of total heavy metals by acid digestion.