19 April 2007 08:14 [Source: ICIS news]
SHANGHAI (ICIS news)--Guiyang Sinochem Kailin Fertilizer has stopped a sulphur dioxide leak from its plant which poisoned over 400 people in southwest China, a government official said on Thursday.
The pollution occurred when the company was restarting its 600,000 tonnes/year nitrogen phosphorus potassium (NPK) compound fertilizer unit in Guiyang, Guizhou province, a spokesman from the city’s publicity department said.
Initial investigations showed that a unit which was supposed to treat off-gases from the plant was faulty, said the spokesman who only wants to be known by his surname Luo.
"Local air quality has resumed to the good level. The off-gas concentration has decreased to 180-200 mg/m3 from 900 mg/m3 on the day when the accident occurred," he said in Mandarin.
The number of casualties who are still in hospital had fallen to 350, he added.
The southwest environment monitoring centre under the State Environmental Protection Administration was still investigating the accident.
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