What are some tips for keeping my dogs and cats healthy?
— Kim Newfield, via e-mail

Believe it or not, our pets may be exposed to more harsh chemicals through the course of their day than we are. Researchers at the non-profit Environmental Working Group (EWG) found that pet dogs and cats were contaminated with 48 of 70 industrial chemicals tested, including 43 chemicals at levels higher than those typically found in people.

“Just as children ingest pollutants in tap water, play on lawns with pesticide residues or breathe in an array of indoor air contaminants, so do their pets,” reports EWG. Since they develop and age seven or more times faster than children, pets also develop health problems from exposures much faster, EWG adds.

“Average levels of many chemicals were substantially higher in pets than is typical for people, with 2.4 times higher levels of stain- and grease-proof …