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第二章 环境与健康的关系( 2 ). 第五节 环境污染与健康. 环境污染( environmental pollution ): 当排入环境中的废弃物数量或浓度超过了环境的自净能力,以致造成环境质量下降和恶化,直接或间接影响到人体健康,称为环境污染。. 第五节 环境污染与健康. 环境污染物的分类: 环境污染物 ( 因素 ) 种类繁多,按其属性通常分为 化学性、物理性和生物性 三类。 (区别于环境因素的分类). 第五节 环境污染与健康. 环境污染对人群健康影响的特点: - PowerPoint PPT Presentation
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