Chinese officials worked feverishly yesterday to ensure safe water supplies to a city in southern China threatened by a toxic slick, the second major water pollution crisis in recent weeks.
The incident follows a chemical spill in a river in northeast China last month that left millions without water for four days, highlighting the seriousness of water pollution in China and raising questions about Beijing's ability to handle its rapid pace of development.
The latest toxic slick was caused by an excessive discharge of cadmium from a state-owned smelting works in the Beijiang river, a major source of drinking water for cities in the northern part of Guangdong Province, Xinhua news agency said.
Waste discharges increased the volume of cadmium in the river at Shaoguan to nearly 10 times above safety levels, "seriously endangering" the safety of water downstream, Xinhua cited the local government as saying.
It did not say when the discharge occurred, but provincial environmental officials were sent to the area on Sunday, Xinhua said.
Officials in Yingde, a city with a population of one million some 90km downstream from Shaoguan, said yesterday they had lowered a dam gate to block the slick from flowing to the part of the river supplying water to Yingde's urban areas.
They were now working around the clock to build a pipeline to divert clean water from a local reservoir, to provide potable water to the 100,000 residents there.
"We've worked the whole night last night and expect to complete it in 48 hours," said an official from Yingde's Water Resources Bureau.
Cadmium is a chemical used in protective plating. Serious exposure can cause diarrhea, stomach pains, severe vomiting, bone fractures, reproductive failure and damage to the central nervous system and the immune system.
The Guangdong provincial government has decided to release water from a reservoir in the upper reaches of the river to dilute the pollution so that the water will be safe enough to drink, Xinhua quoted experts as saying.
Water carriers, including 15 fire engines, were also ferrying in drinking water, it said.
A Yingde official said the city was confident it would not need to cut off the water supply.
"There are three rivers flowing to the city. Even if Beijiang's water is unsafe, we can use water from the other rivers," the official said.
In related news, residents of Khabarovsk anxiously counted the hours yesterday as a toxic benzene slick approached the Russian city's waterways, pinning their hopes on filters and makeshift dams set up to protect the 600,000 residents from poisoning.
Chinese workers assisted by Russian helicopters worked feverishly through the night to complete work on a makeshift dam to prevent the contaminated water flowing down the Amur River from entering a channel that feeds municipal water treatment facilities.
The dam, one of two erected upstream from Khabarovsk, was completed in the early hours of yesterday after old passenger buses and railway cars filled with sand were shipped to the area and dropped into the channel to seal off the Kazakevich channel, regional officials said.
"By midday, construction of the dam on the Kazakevich channel was fully completed," the regional office of the federal emergency situations ministry said in a statement.
Official accounts of the benzene concentration in the waters of the Amur upstream from Khabarovsk and of exactly when the poison slick could be expected to reach the city, varied, but most predicted the slick would hit the city late yesterday or early today.
RSS