Lake water cleanup a work in progress

The water quality of China's third-largest freshwater lake has been greatly improved since a massive algae bloom broke out in 2007, but pollution management remains a major problem, according to environmental protection authorities.

Zhang Limin, deputy director of the General Office of Taihu Lake Water Pollution Prevention and Control in Jiangsu province, said that compared with 2013, the number of blue-green algae blooms and the algae density in the lake both decreased last year.

According to the general office, all nine water sources and the waterworks it investigated last year provided water with quality that met or exceeded that required by the national standard. A total of 700 million tons of water was supplied to Jiangsu and neighboring provinces during the year.