Liangqiao, a small collection of huts and farms in southern China, is known as a cancer village.
It is where Hu Xiaoping, a husband and father and a farmer, died an agonizing death at age 30 one year after being diagnosed with colon cancer.
His widow, Zhu Chun Yun, blames his death on the brown and rust-colored water from the river, which farmers use to irrigate their crops.
"The doctor in the hospital told us not to live here," she told CNN through an interpreter. "He said don't eat the rice and don't drink the water."
Residents of Liangqiao say their river is polluted because of the iron-ore mine about 35 miles away, which is run by a nationally owned company. 
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CNN's Dr. Sanjay Gupta contributed to this report
