Black smoke is particles of charcoal or powdered carbon, the tiny soot left over from engine combustion. that use mostly diesel fuel, such as buses, diesel pickup trucks Generally large vehicles and industrial plants. black smoke, in addition to obscuring vision and already dirty can also enter the lungs by inhaling it and accumulate in the air sacs of the lungs as a cancer-causing substance or a substance that can cause lung cancer and cause bronchitis.

White smoke comes from engines that are not well maintained. especially old motorcycles
white smoke is a hydrocarbon or oil. unburned fuel and then released through the exhaust pipe hydrocarbon. when exposed to sunlight, it will react. generates more harmful ozone gas.