food chain aspects of arsenic contamination in bangladesh: effects on quality and productivity of rice. | the total arsenic content of 150 paddy rice samples collected from barisal, comilla, dinajpur, kaunia, and rajshahi districts, and from the brri experimental station at rajshahi city in the boro and aman seasons of 2000 was determined by hydride generation-inductively coupled plasma emission spectroscopy (icp). arsenic concentrations varied from 10 to 420 microg/kg at 14% moisture content. rice yields and grain arsenic concentrations were 1.5 times higher in the boro (winter) than the summer (mo ... | 2003 | 12635819 |