Fine particles It is becoming increasingly clear that particulate matter is one of the most pervasive and dangerous air pollutants.
(It; is becoming; increasingly clear that particulate matter is one of the most pervasive and dangerous air pollutants) (particulate matter; is; one of the most pervasive and dangerous air pollutants)
It particulate matter
is becoming is
increasingly clear that particulate matter is one of the most pervasive and dangerous air pollutants
one of the most pervasive and dangerous air pollutants