News tagged with geochemist

Pumping draws arsenic toward a big-city aquifer

Naturally occurring arsenic pollutes wells across the world, especially in south and southeast Asia, where an estimated 100 million people are exposed to levels that can cause heart, liver and kidney problems, ...

Sep 11, 2013
3.8 / 5 (4) 0 | with audio podcast

'Highway from hell' fueled Costa Rican volcano

If some volcanoes operate on geologic timescales, Costa Rica's Irazú had something of a short fuse. In a new study in the journal Nature, scientists suggest that the 1960s eruption of Costa Rica's larges ...

Jul 31, 2013
4.7 / 5 (9) 0 | with audio podcast