The spring thaw could release more toxins into the water from a Chinese chemical explosion last year. Thus, China should carry out random checks to prevent a recurrence. The United Nations said this in a report. Contaminating drinking supplies of millions of people and raising alarm bells in nearby Russia, explosion at the chemical plant in northeastern China does not seem to release people of the fears of more health hazards.
“Great care must be taken in the spring when the ice thaws out,” the U.N. body said in a report released on Thursday, which followed a trip to northeast China. “The frozen pollutants in the ice will become liquid and gas and the denser liquid that may have stayed in the bottom layer upstream may become mobile as the water flow increases,” it said.