Q. Where can one check to find out if there is lead paint on China-made building blocks (toys)?

A. Classic wooden building blocks are probably one of the most durable toys for all ages. They teach children about geometry, gravity, shapes, color and balance. However, in recent years, building blocks, as well as other imported toys, have been recalled because of toxic levels of lead in decorative paint.

Lead has been linked to developmental problems on young brains.

More than 80 percent of toys sold in the U.S. are made in China. The Chinese do not have strict regulations and inspections as compared to the U.S.

There are no online sources to check for lead on individual makes of toys, but recalls of many consumer goods, including toys, can be found at www.recalls.gov. For a listing of companies featuring U.S.-made toys, search www.toysmadeinamerica.com.

Another hint is to look for the Art and Creative Materials Institute's seal on toys. The "AP" label means ACMI has tested the product and evaluated it to be safe for toddlers.

Dr. Gary Ginsberg, a toxicologist at Yale University and co-author of "What's Toxic and What's Not" (Berkley/Penguin, 2006), says "play" it safe. If you are not sure about the safety of the toys, don't let children play with them, he warns.

Ginsberg said the good news is, because of recent problems with imported products, "this year's crop of toys may be better scrutinized and safer than ever before in the U.S."