When a driver hits the brakes, friction releases copper shavings that fall onto the road and are eventually washed into rivers, where environmentalists say the metal could pose a hazard to marine life — especially salmon, one of the Pacific Northwest's most prized products.
Washington state responded to the problem last month by becoming the first in the nation to pass a law to phase out the use of copper in brake pads. The move could eventually make copper-free pads the industry standard in the U.S.
LINK (Via: Fox News)