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Newshour - Traffic pollution linked to one in 12 child asthma cases - study - 大象传媒 Sounds

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Traffic pollution linked to one in 12 child asthma cases - studyTraffic pollution linked to one in 12 child asthma cases - study

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New study reveals effect of exposure to nitrogen dioxide, a toxic gas released by vehicles

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Traffic pollution linked to one in 12 child asthma cases - study
New study reveals effect of exposure to nitrogen dioxide, a toxic gas released by vehicles
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