WASHINGTON Government health officials will team up with minor league baseball as part of a new $36 million campaign to discourage rural teenagers from using chewing tobacco.

WASHINGTON - The Food and Drug Administration has rejected a petition from environmentalists that would have banned the plastic-hardening chemical bisphenol-A from all food and drink packaging, including plastic bottles and canned food.

The agency said Friday that petitioners did not present compelling scientific evidence to justify new restrictions on the much-debated chemical, commonly known as BPA, though federal scientists continue to study the issue.

The Natural Resources Defense Council's petition was the latest move by public safety advocates to prod regulators into taking action against the chemical, which is found in everything from CDs to canned food to dental sealants.

About 90 percent of Americans have traces of BPA in their bodies, mainly because it leaches out of food and beverage containers.

AeroShot went on the market late last month in Massachusetts and New York, and it's also available in France. Consumers put one end of the canister in their mouths and breathe in, releasing a fine powder that dissolves almost instantly.

Each grey-and-yellow plastic canister contains B vitamins, plus 100 milligrams of caffeine powder, about the equivalent of the caffeine in a large cup of coffee.