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There was a time when our only concern about the air we breathed was whether it was too hot or smelled like bacon. Today, our government agencies have tracked over 200 pollutants, and each one has an impact on our health.
There was a time when our only concern about the air we breathed was whether it was too hot or smelled like bacon. Today, our government agencies have tracked over 200 pollutants, and each one has an impact on our health.