Solid matter or liquid droplets from smoke, dust, fly ash, and condensing vapors. Causes nose and throat irritation, lung damage, bronchitis, and possibly premature death. Children, the elderly, and people suffering from heart or lung disease are especially at risk. Also damages paint, soils clothing and furniture, and reduces visibility. Elevated levels can cause brain and other nervous system damage and adversely affect kidney function, blood chemistry, and digestion.
Children are at special risk.
Lead can also harm wildlife. A variety of acute and chronic health effects depending on the specific compound.