约翰霍普金斯大学城市环境健康中心的副主任迈克尔.查施博士称，塑料本身不含毒素，太阳光线也不能使塑料分解出毒素。

Plastics do not contain dioxins, and the sun's rays are not strong enough to create them, says Michael Trush, PhD, deputy director of the Johns Hopkins Center for Urban Environmental Health.

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现任中国疾病预防控制中心环境与健康相关产品安全所水质安全监测室主任，研究员。

Director of Department of Water Quality Monitoring, Institute of Environmental Health and Related Product Safety, Chinese Center for Disease Control and Prevention.

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村支书(或村长)、妇女主任、村医和教师对本村的环境卫生现状，小学生及家庭主妇的卫生知识和行为均有一定的了解，他们是推行健康教育和卫生工作的最佳骨干人群。

Village leaders, women's directors, village doctors and teachers realized the situation of upwards and they were the best key persons who put up health education and sanitation work.

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