Confused about Action Day and Ozone

So today is an Action Day because the Air Quality Index has reached an unhealthy level. Specifically, Ozone appears to be very high.

I am confused about the following:

    • Conserve electricity and set your air conditioner at a higher temperature.
    • Choose a cleaner commute—share a ride to work or use public transportation. Bicycle or walk to errands when possible.
    • Refuel cars and trucks after dusk.
    • Combine errands and reduce trips.
    • Limit engine idling.

It seems contradictory to advise limiting outdoor activity and to suggest bicycling/walking in the same set of guidelines, no? Since I bicycled to work today, does this mean I should just ride home very slowly?

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