In this article, the statement is made that personal environmental exposures to volatile organic compounds (VOCs) are easily solved. The implication is that if you have a long commute and are thereby exposed to high concentrations of VOCs, you should just quit your job to avoid exposure. I find that completely absurd.

Mark Palmer
Richland, Wash.

Perhaps the high reported pollutant concentrations are actually good news. If many of the predictions regarding the risk from “bad air” have been determined using concentrations that are far lower than in real life, maybe humans are much more robust than contemporary science believes.

Todd Fiedler
Independence, Mo.