Oriental Daily News says villagers attacked a fellow villager in Pailian, Zhejiang, after he had offered an environmental official money to swim in a polluted river.
Argentina argued the mill polluted the river, while Uruguay said strict environmental codes were followed.
In India, for example, more than 400 million people live along the highly polluted Ganges River.
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Atlanta's business leaders have recognized that improving the quality of life, whether by reducing drive time, planting trees or cleaning up the polluted Chattahoochee River, is in their self-interest, he said.
Michigan's Kalamazoo River is polluted by polychlorinated biphenyls (PCBs), highly toxic chemicals banned in the 1970s.
But there is some concern that the river water is too polluted.
The river once was so polluted it caught fire.
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Situated on the banks of the Ganges River, Varanasi (formerly Benares) is visited by millions of Hindu pilgrims each year, most coming to cremate a deceased loved one and bathe themselves in the river's horrifically polluted but extremely holy waters.
Local economies also suffer when villagers can't sell their grain or eat the crops planted along the river because the water is so polluted.
"This resulted in a 33km stretch of the brook, the River Cledan, the River Irfon and the Wye being polluted with silt, impacting on water quality, " said an agency spokesperson.
The video shows a small river with a yellow hue, allegedly polluted from the discharge of two companies nearby, one of them a suspected Apple supplier.
In 1969, the year before the first Earth Day, two environmental disasters grabbed the country's attention: a massive oil spill coated the coast of Santa Barbara, California, and the Cuyahoga River in Cleveland, Ohio, grew so polluted that it actually caught fire.
Polluted water increased health risks and harmed the ecology of the river, resulting in the deaths of large numbers of fish in "extreme cases", he told MPs.
But for decades, industrial and domestic waste flowed untreated into the river and, not surprisingly, the Rhine was seriously polluted from the 1950s to the 1970s.
The Thames has been polluted for centuries: in 1383 Parliament taxed households whose latrines emptied into the river's tributaries.
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The River Lea and several canals which wend their way through the park used to be badly polluted, he says.
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