University of Sindh, Jamshoro, Pakistan.
Ecotoxicol Environ Saf. 2012 Jan;75(1):27-32. doi: 10.1016/j.ecoenv.2011.09.006. Epub 2011 Oct 1.
The aim of this study was to evaluate the translocation of arsenic (As) by different vegetables grown in agricultural soil irrigated for long period with tube well water as test vegetable samples and compared those vegetables of same species grown in agricultural soil irrigated with fresh canal water marked as control vegetable samples. Moreover, the total and ethylene-diamine-tetra acetic acid (EDTA) extractable contents of As in soil irrigated by tube well and canal water were determined and correlate with total concentrations of As in edible parts of vegetables. Statistically significant correlations were obtained between the total and EDTA extractable fractions of As in soil. High level of total and EDTA extractable As were found in tested vegetable samples as compared to controlled vegetable samples. This investigation highlights the increased danger of growing vegetables in the agricultural land continuously irrigated by As contaminated water.
本研究旨在评估在长期使用管井灌溉的农田中种植的不同蔬菜对砷（As）的迁移情况，将用管井灌溉的农田中种植的蔬菜作为测试样本，将在使用新鲜渠水灌溉的农田中种植的相同蔬菜作为对照样本。此外，还测定了管井和渠水灌溉土壤中砷的总量和乙二胺四乙酸（EDTA）可提取量，并与蔬菜可食用部分中砷的总浓度相关联。土壤中砷的总量和 EDTA 可提取部分之间存在显著的统计学相关性。与对照蔬菜样本相比，测试蔬菜样本中砷的总量和 EDTA 可提取量均较高。本研究强调了在受砷污染的水中连续灌溉农田中种植蔬菜所带来的潜在危险。
