Lead Pb Atomic Number: 82 Atomic Mass: 207.2 Half Life: 27min-53000yrs ______________________________________________________________________________ Sources: - Lead paint, hobbies (sculpting, stained glass), leaded gas, cigarette smoke, foods, water from lead pipes, solder iron/steel/battery production, hair colorants, toys Adverse Effects: - Stores in bones, liver, kidney, brain - Better absorbed by children's gastrointestinal tract - Childhood lead encephalopathy - Neurotoxicity: peripheral and central - Nephrotoxicity - Joint pain - Cardiac dysrythmia - Anemia - Hypertension - Oligospermia, testicular pain