Tạp chí
Lê Thị Thuỷ, Nguyễn Thị Hiền, Vũ Dương Quỳnh, Hà Mạnh Thắng (trang 138-141)
Từ khoá: hàm lượng, kim loại nặng, nước thải, cặn bùn, bùn, nhà máy, sông, thoát nước, Hà Nội
Summary
Heavy metals content in waste water in factories and sediment of some river in Ha Noi
Heavy metals content in waste water did not reach to pollution level, but Zn content in Van Dien battery manufacture site was accumulated, 5-38 times (9.9-75.7 ppm) in comparison with permitted level. Concentration of heavy metals in waste water in dry season is much higher than in rainy season. Sediment samples (except, some sites) most heavy metal content are over permitted level referring to Canada standard, 1997.
