International researchers working in Bangladesh say they have found the source of contaminated drinking water that has caused widespread poisoning in the country for years.
In a report released Sunday by the journal Nature Geoscience, the researchers say thousands of man-made ponds are the primary source of arsenic contamination in Bangladesh's groundwater.
Dr. Abul Hussam is a professor of Chemistry & Biochemistry at the George Mason University. Professor Hussum is also the director of Center for clean water and sustainable technology. He has won an international award for his invention of an Arsenic Filter for Drinking water.
In an interview with Voice of America Dr. Hussam explained the findings.