If a person breathes in 20m3 of air per day and the air contains 263
micrograms of particulates per m3, how many grams of particulates does
a person breathe in per day?
•If a person breathes in 20m3 of air per day and the air contains 263 micrograms of particulates per m3, how many grams of particulates does a person breathe in per day?
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