The air pollutant that I was exposed to last week was the bush burning by one mr Ade nearer to my house. The smoke from the bush burning made the atmosphere unfriendly. It caused breathing impairment and also led to coughing and sneezing at the same time.
The apartment building I live in is near a factory, which contributes to smog. Also, I rode the bus to school this morning, which emits carbon monoxide. Explanation:
After he has adjusted to his exercise routine he should increase the intensity of the workout. Ex. add weight/ increase reps. This will help get his heart rate higher.