UNICEF helps

I came across this information that UNICEF constructed wells for clean drinking water for Bangladeshis under one of its hygiene projects. But one article of Fred Pearce published by UNESCO states:

Tens, perhaps hundreds of thousands will die.

Why? Because nobody tested for the natural poison, arsenic, widely found in underground water. And when a doctor did find traces of the metal, and when Bangladeshi villagers did start turning up at doctors' surgeries with the tumours and telltale signs of arsenic poisoning, the results were swiftly buried so that nobody made the connection.

Anyone has more info on this?

Via Notes on Civil Society.