“Oak trees, which already let out 800 times more isoprene than maples, emit in especially high volume when the city reaches boiling temperatures in the high 90s as well. They make up 37% of city trees while the sweetgums consist of 17%.”
Sweetgums 17 per cent? I’d think there would be more Ailanthus (tree of heaven). Ailanthus grows everywhere in NYC. It’s a giant weed almost. Empty lots, garbage piles, rooftops, fence lines, highway medians, railroad rights of way, or anywhere there is enough dirt. I had one growing from the top of my chimney and I had to climb up to pull it out. Another sprouted in my basement window well.
Most definitely, everywhere it blows and plants itself. China native.