BEIJING — Angry demonstrators entered a government office in the port city of Qidong, near Shanghai, on Saturday and smashed computers and destroyed furniture to protest a waste-discharge plant that they said would pollute the water supply.
In reaction, the local government website said Saturday that plans for the discharge plant, which was to be part of a paper manufacturing plant, had been abandoned.
China’s authorities face a mounting pattern of protests against pollution, and in particular, against industrial plants that locals can single out during the planning stage or in the early days of construction.
This month, protesters in the southern town of Shifang in Sichuan province forced the local government to abandon plans to build a copper refinery after complaints that the waste would contaminate the water supply and pollute the air. In Shifang, the police used tear gas against protesters.
In the northeastern city of Dalian, the authorities were forced to call off the construction of a petrochemical plant last year after demonstrators said it threatened public health.
In Qidong on Saturday, about 1,000 protesters marched through the city and two police officers were badly beaten by demonstrators, the Reuters news agency reported.
The city, where authorities have attracted pharmaceutical companies, chemical fertilizer plants and computer parts factories with tax breaks and other enticements, sits on the mouth of the Yangtze River.
It is part of the vast Yangtze Delta region that has been an engine of China’s manufacturing power in the past decade.
Last year, Qidong was connected to Shanghai by a nearly 40-mile-long bridge, making the local economic enterprise zone, established by the local government to attract business, even more appealing to investors.
One of the most profitable industries in Qidong is the exporting of fish, including processed lobster and shrimp, to the United States. The city boasts freezers certified by the European Union for the export of fish to Europe.
Some of the protesters argued that the wastewater plant would discharge effluent into the sea and harm the fishing industry. But most expressed concern about drinking water.
Several people reached by telephone said the local government sent text messages to residents and storekeepers Friday night and Saturday asking them not to participate in the demonstration.
Information for this article was contributed by Bree Feng of The New York Times.
Front Section, Pages 10 on 07/29/2012