According to the BGS, the arsenic is adsorbed onto particles of iron oxyhydroxide, which are reduced by organic extracts in the water itself, releasing arsenic.
According to the BGS, the arsenic is adsorbed onto particles of iron oxyhydroxide, which are reduced by organic extracts in the water itself, releasing arsenic.
这个由英国地质调查所提出的「还原假说」认为，砷吸附于含水氧化铁的颗粒上，含水氧化铁则被水中的有机物质还原而释放出砷。