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Sick list

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Why you can trust SCMP
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Sulfur dioxide

Can impair respiratory function and aggravate existing respiratory diseases causing severe distress and cardiac illnesses.

Non-respirable suspended particles

Larger particles that are not absorbed into the lungs. They mainlny cause aesthetic problems such as soiling, dust, soot, etc.

Respirable suspended particulates

Smaller than 10 millionths of a metre. Can penetrate deep into the lungs and cause respiratory problems. Also affects visibility.

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