There’s quite a community of people who work out outdoors here, from runners to triatheletes to just folks playing basketball. In my opinion it’s better to exercise in pollution than not exercise at all. A recent article from runner’s world magazine said, “A bit of good news, finally: It turns out the positive effects of running are usually sufficient to outweigh the negative effects of pollution. On average, regular exercise extends life more than increased exposure to pollution shortens it.”