the pollution in some parts of NYC is really disgusting. i imagine it will just get worse as the warm weather pours in and once the windy season stops some time in June/July. even tho pedaling against the wind is annoying, it is what keeps cycling awesome here in the spring. i've heard pollution can be an issue for those with asthma and heart problems, but i don't know and don't know anyone who has it and cycles.

Cycling masks and the shocking results

How should cyclists protect against pollution? - BBC News

Paris in Spring Means Carry a Mask Along With Your Umbrella - Bloomberg Business

Cyclist reveals filthy face masks after commuting in London - London - News - London Evening Standard

most of these are London stories. that was the first NYC story i saw about it and figure i should ask.