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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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