What are the potential health effects of exposure to carbon monoxide and particulates from combustion?

Exposure to carbon monoxide can lead to reduced oxygen delivery in the body, causing symptoms like fatigue and confusion. Particulates can cause respiratory problems, aggravate asthma, and lead to long-term lung damage.

A strong answer should directly address the approved learning objective to explain why carbon monoxide is toxic because it reduces the ability of blood to carry oxygen. This question belongs to Properties and effects of atmospheric pollutants within Common atmospheric pollutants and their sources, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to carbon monoxide, and keeps the wording specific to AQA GCSE revision.