Lead has been mined for thousands of years because it is common and possesses many properties that make it useful. Yet even in ancient times, it was known to cause terrible illnesses and contact with the metal was avoided. It’s surprising then that up until the 1950’s, paint was made of up to 50% lead and cars were allowed to burn leaded gasoline. Despite regulations that limit the amount of lead in homes, many older homes still have large amounts of the substance. To find out more about lead poisoning and where lead is found in homes, check out our new article on lead for inspectors.