"HealthyCar.org is based on research conducted by the Ecology Center that looks at the presence of key hazardous chemicals in vehicles and child car seats. While there are numerous substances in vehicles that can lead to health and environmental problems, HealthyCar.org focuses on bromine, chlorine, lead, as well as some other heavy metals, allergens and carcinogens. All of these substances were chosen because of their toxicity, persistence, and/or tendency to build up in people and the environment. All of them have also been subject to regulatory restrictions and/or voluntary limits set by industry associations or third party certification organizations.
HealthyCar.org includes test results from over 200 of the most popular vehicles in the U.S. market from the 2006 and 2007 model years. In each vehicle, 15 different components were sampled using a portable, hand-held X-Ray Fluoresence (XRF) spectrometry device. The components sampled include: steering wheel, shift knob, armrest/center console, dashboard, headliner, carpet, seat front, seat back, seat base, hard door-trim, soft door-trim, body sealer, wiring, window seal and wheel weights."