Heavy metal contamination of soils and vegetables grown in Chapai- Nawabganj of Bangladesh
We studied the extent of heavy metal contamination in soils and vegetables (7 leafy, 13 fruity, and 4 root & tuber) grown on five intensively vegetable growing areas of Chapai Nawabganj district of Bangladesh during March to April 2003-2004. The levels of As, Pb and Cd in all the soils of five locations were lower than the maximum permissible limit for crop production. The As concentration in leafy vegetables was the highest followed by fruity vegetables and root & tuber vegetables. The concentrations of Pb and Cd were higher in root & tuber vegetables compared to those of leafy and fruity vegetables, while reverse was true for Zn and Fe. The intake of 130g fresh vegetables daily by an adult of 60kg body weight contributes 2.4％-16.4％, 0.2％-5.0％, 0.4％-13.4％ of the maximum tolerable daily intake (MTDI) for As, Pb and Cd, respectively. The same amount of vegetables supplies considerable amount of essential trace elements like Fe and Zn for humans.
Arsenic cadmium iron lead vegetables zinc
M. R. Islam M. E. Hoque M. Jahiruddin S. Islam
Department of Soil Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
73-74
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）