2013 Huangpu River dead pigs incident, Environmental incident in Shanghai, China.
The 2013 incident refers to the discovery of more than sixteen thousand dead pigs in the Huangpu River, which supplies drinking water to millions of people in Shanghai. Fishermen noticed the carcasses in March as they drifted downstream and covered the water surface along urban waterfront areas.
The animals came from Jiaxing in Zhejiang Province, where farmers disposed of dead pigs in the river because processing facilities were scarce. The episode led to reforms in agricultural waste handling and tighter government oversight in eastern provinces of China.
Chinese social media users and environmental activists documented the pollution through photographs and public discussions, demanding increased transparency from local authorities.
Local authorities conducted water quality testing throughout March 2013 and confirmed the drinking water remained safe despite the presence of porcine circovirus in some carcasses. Visitors to the riverfront in Shanghai found remnants and traces of the episode along the waterfront promenade during that period.
The number of recovered pigs exceeded the capacity of local disposal facilities, forcing authorities to develop makeshift methods for retrieving and disposing of the carcasses. The episode triggered nationwide public discussions about intensive pig farming conditions and their environmental consequences.
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