This summer, when Kellogg recalled 28 million boxes of Froot Loops, Apple Jacks, Corn Pops and Honey Smacks, the company blamed elevated levels of a chemical in the packaging. Dozens of consumers reported a strange taste and odor, and some complained of nausea and diarrhea. Federal regulators, who are charged with ensuring the safety of food and consumer products, are in the dark about the suspected chemical, 2-methylnaphthalene. The [FDA and EPA have] no scientific data on its impact on human health. The cereal recall hints at a larger issue: huge gaps in the government's knowledge about chemicals in everyday consumer products, from furniture to clothing to children's products. Under current laws, the government has little or no information about the health risks posed by most of the 80,000 chemicals on the U.S. market today. The information gap is hardly new. When the Toxic Substances Control Act was passed in 1976, it exempted from regulation about 62,000 chemicals that were in commercial use -- including 2-methylnaphthalene. In addition, chemicals developed since the law's passage do not have to be tested for safety. Instead, companies are asked to volunteer information on the health effects of their compounds.