BEIJING, March 21 (Xinhua) -- Dianchi Lake in southwest China has hopes of restoring its lost splendor after 30-odd years of severe pollution.
Water quality in the lake, the largest on the Yunnan-Guizhou Plateau, was once deemed "inferior to Grade V," the worst in China's water quality grading system and "too polluted for any purpose."
Decades of breakneck growth left much of China's water seriously contaminated by factory waste and agricultural fertilizer. Last year was the first time the water in the 300-square km lake was clean enough to be used for agriculture since 1985, a testament to what China has achieved.
The story of the Dianchi Lake is encouraging and nationwide, things are gradually getting better.
The proportion of monitored surface water reaching Grade III or above rose by 1.8 percentage points to 67.8 percent in 2016, surpassing the 66.5-percent target, Zhang Bo, an official with the Ministry of Environmental Protection (MEP), said ahead of World Water Day on March 22.
The share of water "inferior to Grade V" fell by 1.1 percentage points to 8.6 percent, Zhang told a press conference on Monday.
Only water at or above Grade III can be used for drinking, although treatment may be required.
The work behind the seemingly small improvement was anything but easy, exemplified by the clean-up of Dianchi Lake, a victim of reckless industrial development, surging domestic sewage and once regarded as the filthiest body of water in China.
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