Which of the following statements is FALSE? Coal ash waste ponds are located in southern and eastern Ohio. The U.S. Clean Air Act is responsible for reducing the amount of atmospheric lead (Pb) by 10% from 1970 to 2000. Particulate matter less than 2.5 micrometers in size can enter cells and the bloodstream if breathed in by humans. In the USA today, about 7-million children and 18-million adults have been diagnosed with asthma. Fluidized-bed combustion technology mixes limestone with coal to reduce the amount of sulfur dioxide being released by burning coal.