The common health consequence of pollutants like particulate matter, sulfur dioxide, nitrous oxides, and ozone is that they irritate the respiratory tract and aggravate respiratory illnesses such as asthma. This can lead to increased symptoms and long-term respiratory issues. Therefore, the chosen answer is A.
;
Pollutants like particulate matter, sulfur dioxide, nitrous oxides, and ozone primarily irritate the respiratory tract and aggravate respiratory illnesses like asthma. They can lead to inflammation and exacerbate existing lung conditions. Understanding these effects is crucial for improving respiratory health. ;