<prompt> Lead poisoning mostly occurs due to :-IngestionInhalationDirect skin contactNone of the above  <response>: Lead poisoning Plumbism, Saturnism or Painters Colic: Greatest source of lead in Lead Poisoning Plumbism, Saturnism or Painters Colic is; Gasoline petrol vehicular exhaust automobile exhaust. Mode of absorption: Lead can be absorbed by inhalation MC mode, ingestion or through skin. Clinical feature- baonian line- blue line on gums palllor- first sign,most consistent sign wristfoot drop colic and encephalopathy screening test- CPU-Copro porphyrin in urine diagnostic test- ALAU-Amino levulinic acid in urine Lead levels in blood Lad levels in urine 