0.01corn / soil 0.03husk / soil 0.2stem / soil 5.1root / soil transfer coefficients  intensive accumulation of As in the rhizosphere  restricted transport.

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Presentation transcript:

0.01corn / soil 0.03husk / soil 0.2stem / soil 5.1root / soil transfer coefficients  intensive accumulation of As in the rhizosphere  restricted transport of As towards upper plant parts Critical value in Germany, England, the Netherlands: 1ppm root: 174 ppm stem/leaves: 7 ppm corn: 0.3 ppm husk: 1 ppm cm As Fe: ppm ppm Cr: 11 ppm V: 23 ppm Cu: 20 ppm Zn: 25 ppm Pb: 5.6 ppm Factor 2 to 10 compared to wheat conc. in soil Arsenic concentrations in rice

Feed: mg kg -1 Animal product (mg kg -1 ) Milk: Egg Meat Drinking water , mg L -1 Pathway of As intake through food-chain Rain water Data source: Project survey report

Arsenic in Rice Halder et al., ES&T 2012