中文摘要：

上海黄浦江上的死猪漂浮事件，引发公众对公共饮水安全与养猪业环境污染事件的广泛关注。本文基于死猪漂浮事件，运用环境外部性理论，从经济、政策、生态意识和养殖管理等方面，分析了死猪漂浮事件环境外部性形成的原因，以及环境外部性具有公共性、转移性、分散性、随机性等基本特征；并从经济、政策、技术和生态文化建设视角，提出了环境外部性内部化的对策措施。

英文摘要：

The event of the floating dead pigs in the Huangpu river of Shanghai has aroused public attention on the security of the public drinking water and the environment pollution of the pig-raising industry. This paper will analyze the formation factors of environmental externalities caused by the event of floating dead pigs from the following aspects, that is, the influence of the economy and public policy, the awareness of the eco-environment and the management of the pig-raising industry. And the basic features of environmental externalities including public, transferable, dispersive and speculative will be discussed in this paper. Based on the above, this paper will put forward some useful countermeasures from the perspective of economy, public policy, technology and the how to internalize environmental externalities. culture to tackle the problems on how to internalize environmental externalities.