NDLI: Mercury and Cadmium Contamination of Irrigation Water, Sediment, Soil and Shallow Groundwater in a Wastewater-Irrigated Field in Tianjin, China

Content Provider	Springer Nature Link
Author	Wu, G. H. Cao, S. S.
Copyright Year	2010
Abstract	We investigated the concentrations of Hg, Cd, Pb and As in samples of irrigation water, sediment, soil and groundwater from a field in Tianjin that was irrigated with wastewater. The results showed that the concentrations (Hg, 0.82 μg/L; Cd, 0.18 μg/L; Pb, 1.5 μg/L; As, 8.02 μg/L) in the irrigation water did not exceed the China Surface Water Quality Standard or the maximum concentrations in irrigation water recommended by the FAO. The concentrations of metals in the groundwater of wells (Hg, 0.016 μg/L; Cd, 0.128 μg/L; Pb, 0.25 μg/L; As, 4.65 μg/L) were lower than China Groundwater Quality Standard and the WHO guideline values for drinking water. The groundwater had not yet been contaminated through vertical infiltration-induced leaching. However, a substantial buildup of Hg and Cd in river sediments (I geo for Hg and Cd; 5.24 and 3.04, respectively) and wastewater-irrigated soils (I geo for Hg and Cd; 2.50 and 3.09, respectively) was observed. Taken together, these results indicated that irrigation with wastewater damaged the soil quality over the long term and that metals more easily accumulated in vegetable fields than rice fields.
Starting Page	336
Ending Page	341
Page Count	6
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	84
Issue Number	3
e-ISSN	14320800
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-01-29
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Wastewater irrigation Metals Soil Groundwater Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environmental Chemistry Soil Science & Conservation Ecotoxicology Environmental Health Pollution
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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