Answer:
On an individual basis, to reduce air pollution stop using fossil fuels on a daily basis in his car (so switching from a fuel car to an electric car or at least a hybrid car would be a lot already). Another thing would be that important to do would be to stop spending resources such as wood for warming but to rather use a different energy source to heat up an appartment.
Generally when there is high air pollution, different infections of the nasal pathway could ensue due to it.
Step-by-step explanation:
I hoped this helped you :D