Question

what is the cause of SPM​

Answer 1

Answer:

Suspended matter consists of dust, fumes, mist and smoke. The main chemical component of SPM that is of major concern is lead, others being nickel, arsenic, and those present in diesel exhaust. These particles when breathed in, lodge in our lung tissues and cause lung damage and respiratory problems.

Explanation:

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Answer 2

Answer:

suspended matter consists of dust fumes mist and smoke .the main chemical component of spm that is major concern is lead