River water is now flowing into aquifers through highly contaminated sediments

High concentrations of arsenic are making their way from the Red River into aquifers near Hanoi, Vietnam, a new study shows. Mason Stahl tests water at the river’s edge where sediment is being deposited. Photo: Courtesy of Mason Stahl
ldeo.columbia.edu – Large-scale groundwater pumping is opening doors for dangerously high levels of arsenic to enter some of Southeast Asia’s aquifers, with water now seeping in through riverbeds with arsenic concentrations more than 100 times the limits of safety, according to a new study from scientists at Columbia University’s Lamont-Doherty Earth Observatory, MIT, and Hanoi University of Science. Tiếp tục đọc “Urban water pumping raises arsenic risk in Southeast Asia”


Một nhà máy thuộc cụm nhà máy nhiệt điện Duyên Hải, tỉnh Trà Vinh. Ảnh: LÊ ANH TUẤN





Các doanh nghiệp Trung Quốc đang tìm kiếm cơ hội đầu tư vào thị trường Mỹ. Ảnh: Chinanews