Most common mode of lead poisoning –
Inhalation - Most cases of industrial lead poisoning is due to inhalation of fumes and dust of lead or its compounds.
Ingestion - Small quantities of lead trapped in the upper respiratory tract may be ingested. Contaminated hands may also lead to ingestion.
Skin - Only organic lead (e.g., tetraethyl lead) is absorbed dermally.
Ingestion
Den-nally
Inhalation
Through conjuctiva