Is outdoor exposure to secondhand smoke/aerosol comparable to indoors?

The difference in exposure to secondhand smoke/aerosol indoors and outdoors is that indoors the concentration of the harmful chemicals, compounds, and particles released from the product or exhaled by the smoker/vaper may build up and/or stay in the enclosed space for longer periods of time, which means persons near the smoker/vaper indoors may be exposed to higher concentrations of the contaminants for longer durations.

Regardless of where the exposure takes place — outside or inside, secondhand exposure may pose health risks or worsens existing health symptoms for some people.

Read more about Secondhand Smoke/Aerosol.

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