The main part of the project was working out what the results actually meant rather than just reporting the numbers.
PM2.5 and PM10 followed very similar patterns, while the weather variables showed different relationships with particulate pollution. I also looked closely at the unexpected precipitation probability result and separated this from actual rainfall rather than treating the two as the same thing.
I kept the conclusions focused on relationships within the dataset. Since the data came from one monitoring station and did not include factors such as traffic, heating emissions or humidity, I avoided claiming that the weather variables directly caused changes in pollution.