Inhaling PM 2.5 is most likely to cause ______________ .
A)damage to alveoli in the lungs
B)hallucinations
C)brain damage
D)depletion of the ozone layer

Question

Quizplus · Accepted Answer

PM 2.5 refers to fine particulate matter in the air that is smaller than 2.5 micrometers in diameter. When inhaled, these tiny particles can penetrate deep into the lungs and cause damage to the alveoli, the tiny air sacs where gas exchange occurs. This can lead to respiratory problems such as asthma, chronic obstructive pulmonary disease (COPD), and lung cancer.