Measuring arsenic in Bangladesh's rice crops

Naturally-occurring arsenic in Bangladesh's groundwater has been identified as one of the world's great humanitarian disasters, with millions people at risk of cancers and other diseases from drinking water and eating rice irrigated with contaminated water. Now University of Massachusetts Amherst analytical chemist Julian Tyson and his student Ishtiaq "Rafi" Rafiyu are partnering with Chemists Without Borders (CWB) to develop a low-cost, easy-to-use test kit to measure arsenic in Bangladesh's ri