Air Quality
October 16, 2008--New regulation cuts allowable lead in the air ten-fold (Environmental News Service)
The new standards reduce the allowable lead level 10 times to 0.15 micrograms of lead per cubic meter (ug/m3) of air.
The new standards reduce the allowable lead level 10 times to 0.15 micrograms of lead per cubic meter (ug/m3) of air.