3 ms·
Is it mostly automobiles? Does it get better outside the cities?
by byw 5y ago
Is it mostly automobiles? Does it get better outside the cities?
- jeffbee 5y agoOutside the biggest cities it's actually worse. For particulate pollution you need that special mix of cars, off-road equipment, smoke, and dust. Like Fresno. https://www.lung.org/research/sota/city-rankings/states/california https://www.lung.org/research/sota/city-rankings/states/cali...