Beijing: Pollution in China remains very serious as the country's rapid economic growth brings on new environmental problems, with nearly 1,000 contamination incidents in the last five years, a minister said yesterday.

Vice environment minister Zhang Lijun said China has made progress on environmental protection, but acknowledged that its double-digit economic growth over the past decade has had negative impacts on the environment.

"Our rapid economic development has continuously brought our country new environmental problems, particularly dangerous chemicals, electronic waste and so on. These environmental pollutants bring new problems and impact human health," Zhang told a news conference on the sidelines of the annual session of the National People's Congress, China's legislature.

He said that emissions of traditional pollutants remain high and some areas have failed to meet government targets. China has pledged to continue reducing emissions this year of three key air pollutants — ammonia nitrogen, sulfur dioxide and nitrogen oxide.

Chemical oxygen

The government has also promised to bring down demand for chemical oxygen — a measure of water pollution — by 1.5 per cent from the 2010 levels.

In the last five years, there were 912 "environmental emergencies" involving heavy metal pollution, including several well-publicised instances of mass contamination, Zhang said. Thousands of children were affected by lead poisoning in several provinces in 2009 and 2010 because they lived near metal smelters or battery factories.

Other incidents included a diesel fuel leak in the Yellow River, chemical contamination in the northeast Songhua River following a flood, and crude oil leakage off the northeastern coastal city of Dalian after a pipeline burst.

The minister noted that anticipated rapid urbanisation in the next five years underscores the need for China to improve environmental protection and to shift to a more sustainable model of economic development from its reliance on energy-intensive industries.

China is focusing on clean energy generation, including solar, hydropo wer, wind and nuclear, as one way to reduce its reliance on coal, which generates three-quarters of its electricity.