FATE OF HEAVY-METALS IN A LAND TREATMENT SYSTEM - IRRIGATED WITH MUNICIPAL WASTE-WATER

被引：10

作者：

YEDILER, A ^{[1
]}

GRILL, P ^{[1
]}

SUN, T ^{[1
]}

KETTRUP, A ^{[1
]}

机构：

[1] ACAD SINICA,INST APPL ECOL,SHENYANG,PEOPLES R CHINA

来源：

CHEMOSPHERE | 1994年 / 28卷 / 02期

关键词：

D O I：

10.1016/0045-6535(94)90134-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The fate of heavy metals (Cd, Cu, Hg, Pb, and Zn) in a rice paddy slowrate land treatment system (SR-LTS) has been studied. The SR-LTS was designed to dispose of wastewater from west Shenyang city, in northeast P.R. China, where various industries are located. Soil samples from 4 different soil depths (0-100 cm) and rice (roots, leaves, grain) were collected and analyzed for heavy metals by ICP and AAS. As expected, the highest concentrations were detected in the top layer of the soil. Copper, lead and zinc were considerably more mobile (50-80%) than either cadmium or mercury in the SR-LTS soil profile. Heavy metals measured in rice leaves and rice grain were significantly lower than in the roots, which contained high amounts of Cd, Pb, Cu, and Zn corresponding to the soil burden. Overall, this study suggests that the content of cadmium (0.24 mg kg-1) in the rice grain should be assessed for risks to human health.

引用

页码：375 / 381

页数：7

共 14 条

[1] LEAD ACCUMULATION IN AQUATIC PLANTS FROM METALLIC SOURCES INCLUDING SHOT [J].