New method assesses lead hazard in soil

As Milwaukee, Flint, Michigan and other cities grapple with the toxic impact of lead water pipes, another lead-contamination hazard lurks in soil.

India's excess fluoride in groundwater

Fluoride occurs naturally in groundwater. In small amounts, this is usually not a problem, but in India the concentration in many places exceeds the threshold at which is starts to present a health hazard. According to estimates ...

page 2 from 20