Environmental ministry warns of heavy metal pollution in Dong Nai

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Sewage treatment tanks in Dong Nai Province. Photo credit: Vietnam News Agency Sewage treatment tanks in Dong Nai Province. Photo credit: Vietnam News Agency

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Inspectors from the Ministry of Environment have noted an alarming rise in heavy metal contamination in the soil of Dong Nai Province over the years, exceeding permitted levels.
Tests conducted by environmental officials in the industrial and agricultural neighbor of Ho Chi Minh City yielded significant levels of contamination in the province’s many industrial zones, the Ministry of Natural Resources and Environment said in a recent statement.
Soil samples at the sewage treatment plant of the Bien Hoa 1 Industrial Zone contained 2.56 times more zinc than acceptable levels and 3.55 times more lead.
Both of those levels were higher than last year, the ministry said.
Tests at similar places at Loteco and Long Thanh industrial zones found zinc levels that exceeded national standards by 1.2 times.
The soil around solid waste treatment areas in many districts also tested positive for excessive levels of copper. The rate in Thong Nhat District, for example, was 4.8 times for copper and 1.4 times for arsenic.

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