Autumn is setting in now though, and so, based on last year's graphs, I would expect particulate matter pollution levels to begin increasing again.
This year I will be looking out for likely sources of pollution. Last year there seemed to be some from local sources, in particular bumps due to wood burners and central heating systems during especially cold snaps; but the biggest influencer appeared to be wind direction: northerly winds brought pollution from London, while southerly winds brought pollution from Paris.
Pollution from London and Paris appeared to be overwhelmingly the largest contributors to atmospheric particulate matter levels in Eastbourne last year, and I will be looking for that again this winter.
In the meantime there is plenty of other human-environment stuff to observe. Witness the (well ventilated) bulldozer in the header image to this post as soft sea defences around the harbour are being repaired after high tides and strong winds earlier on in the week.