title: Uptake and accumulation of potentially toxic metals (Zn, Cu and Pb) in soils and plants of Durgapur industrial belt.
abstract: Uptake and accumulation of metals in crops may cause possible health risks through food chain. A field survey was conducted to investigate the accumulation of potentially toxic metals contamination in soil and plants irrigated with complexed industrial effluents. Concentration of Zn, Cu and Pb was 205-255,101-130,118-177 microg g(-1) in rhizosphere soils and 116-223, 57-102 and 63-95 microg g(-1) d. wt. in root and 95-186, 44-75 and 27-58 microg g(-1) d. wt. in shoot, respectively. The trend in Cu and Pb was in the order: soil > root > shoot > seed while in Zn it was soil > root > seed > shoot. Roots accumulated a larger fraction of soil Cu (70%) > Zn (67%) > Pb (54%). Bioaccumulation coefficient of soil to root ranged from 51-98 for Zn, 54-85 for Cu and 43-63 for Pb.Analysis of variance showed marginal change in bioaccumulation coefficient, noticed between plants (p > 0.05) while it varied significantly (p < 0.01) between tissues and metals. It increased from root to seed/fruit (root > shoot > seed/fruit) while decreased between metals from Zn to Pb (Zn > Cu > Pb). Out of the three, two Cu and Pb accumulated to phyotoxic levels while Zn was within threshold limit of phytotoxicity.
authors.affiliation: Environmental Monitoring Section, Indian Institute of Toxicology Research, M.G. Marg, Lucknow, 226 001, India. kiskugc1@rediffmail.com
authors.forename: Ganesh Chandra
authors.initials: GC
authors.lastname: Kisku
authors.forename: Poonam
authors.initials: P
authors.lastname: Pandey
authors.forename: Mahendra Pratap Singh
authors.initials: MP
authors.lastname: Negi
authors.forename: Virendra
authors.initials: V
authors.lastname: Misra
mesh_terms: D003300:Copper / Q000737:chemistry / Q000378:metabolism; D004784:Environmental Monitoring; D007194:India; D007854:Lead / Q000737:chemistry / Q000378:metabolism; D008669:Metallurgy; D019216:Metals, Heavy / Q000737:chemistry* / Q000378:metabolism*; D018517:Plant Roots / Q000378:metabolism; D010944:Plants / Q000378:metabolism*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000737:chemistry* / Q000378:metabolism*; D015032:Zinc / Q000737:chemistry / Q000378:metabolism
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D007854:Lead; D003300:Copper; D015032:Zinc