3 ms·

I get that those are concerning, but "disgusting for pedestrians and cyclists"? O3, SO2, and CO are all invisible, and even SO2 is not something people see at a

I get that those are concerning, but "disgusting for pedestrians and cyclists"? O3, SO2, and CO are all invisible, and even SO2 is not something people see at a close distance AFAIK. Moreover I don't understand how they would be noticeably different for drivers vs. pedestrians/cyclists. Only the particulate emissions (smoke etc.) are things that would seem noticeably different, no?

Retric 3y ago
Exercise means significantly faster breathing and thus significantly more exposure per minute. Road cyclists can and should use a mask which helps vs particulates, but they can’t easily avoid these gasses. Also, while most cars have some air filtration for the cabin the quality of that filtration can vary quite a bit. It can be well worth an aftermarket upgrade.