Widely considered a screen against contamination, clay layers may actually enhance arsenic leakage into some aquifers, study finds.
Source: Clay Layers and Distant Pumping Trigger Arsenic Contamination in Bangladesh Groundwater
(Press Release, Earth Institute | Columbia University; May 7, 2020)
Featured Research Article:
Arsenic contamination of Bangladesh aquifers exacerbated by clay layers (MIHAJLOV et al., 2020)
https://www.nature.com/articles/s41467-020-16104-z
By Kazi towhid – Own work, CC BY-SA 4.0, Link
C. Mei-Ling HAMILTON - Environmental Geochemistry Issues 