From the Los Angeles Times:

The Chinese government provided details Friday of its efforts to contain the second major environmental disaster to hit the country’s waterways in little more than a month.

State media reported that authorities had sealed dams and pumped neutralizing chemicals into the Bei River in the wake of a toxic spill Tuesday from a smelter in southern China’s Guangdong province, where thousands of factories make up the manufacturing hub of a booming export-driven economy.