Status of Soil Arsenic and Accumulation of Arsenic in Different Parts of Rice Plants Irrigated with Arsenic Elevated Water in Nadia District of West Bengal

Yadav, Himanshu (2013) Status of Soil Arsenic and Accumulation of Arsenic in Different Parts of Rice Plants Irrigated with Arsenic Elevated Water in Nadia District of West Bengal. Masters thesis, Indian Institute of Science Education and Research Kolkata.

PDF (MS Dissertation of Himanshu Yadav (08MS10)) Himanshu_Yadav-08MS10-MSThesis.pdf - Submitted Version Restricted to Repository staff only Download (4MB)

Abstract

The study was carried out to investigate the concentrations and spatial distribution of Arsenic and other heavy metals in the groundwater, surface water and soil core of Nadia district of West Bengal, is reported to be higher arsenic concentration in ground water. Sampling locations were strategically positioned along the length of both continuously flooded and intermittently irrigated field and sampled for As and other metals (Ni, Fe, Zn, Cu and Mn) content. The variation of physico-chemical parameters of water of the study area is also diverse. During early rice growth, As concentrations reached up to 50 ppm and were dominated by As (III), but As release was constrained to the lower portion of the soil. Our findings suggest that intermittent irrigation, currently advocated in few parts for water saving purposes, may be a promising means of reducing As input to paddy soils and rice plant exposure to As.

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