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Chất gây ô nhiễm trong Môi Trường: Bạn có thể bị tiếp xúc như thế nào?

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Published on Aug 13, 2012

Contaminants in the Environment: How Can I Be Exposed? (in Vietnamese): This video will show you where contaminants, such as PAHs, go when they enter the environment and how you can be exposed to them. Knowing where they are can help you avoid those areas and reduce your risk of coming into contact with harmful chemicals.

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