In China's Guangdong province, twelve volunteers have been trained to detect harmful pollution by using their sense of smell. Check out this HowStuffWorks podcast to learn more about China's pollution sniffers.

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<p>In China's Guangdong province, twelve volunteers have been trained to detect harmful pollution by using their sense of smell. Check out this HowStuffWorks podcast to learn more about China's pollution sniffers.</p><p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

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In China's Guangdong province, twelve volunteers have been trained to detect harmful pollution by using their sense of smell. Check out this HowStuffWorks podcast to learn more about China's pollution sniffers.

How China's Pollution Sniffers Work

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/ed47e8a4-c5c2-43b6-9bfd-ae2800c2b81d/transcript

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