Lead is a chemical element in the periodic table that has the symbol Pb (Latin: plumbum) and atomic number 82. A soft, heavy, toxic and malleable poor metal, lead is bluish white when freshly cut but tarnishes to dull gray when exposed to air. Lead is used in building construction, lead-acid batteries, bullets and shot, and is part of solder, pewter, and fusible alloys. Lead has the highest atomic number of all stable elements - although the next element, bismuth, has a half life so long (longer than the estimated age of the universe) it can be considered stable. Like mercury, another heavy metal, lead is a potent neurotoxin which accumulates in soft tissues and bone over time.

The term "lead" was found in the following pages:

Instrument database: Varian Inc. - 500-MS LC Ion Trap
Influence of culinary treatments of fish on its mercury content and speciation | EVISA's News
Material database: RECIPE Chemicals + Instruments GmbH - ClinCal 9943 Whole blood calibrator lyophilised for trace elements
Instrument database: Beijing Rayleigh Analytical Instrument Corporation (BRAIC) - WLD-3C ( 7503C ) OPTICAL EMISSION SPECTROMETER
Material database: National Metrology Institute of Japan (NMIJ) - NMIJ CRM 7202-a: Trace Elements in River Water (Elevated Level)
Material database: Sigma-Aldrich - Matrix CRM - Soil, Sludge, Sediment: TCLP Metals -Loamy Sand 1
CDC's Vaccine Safety Research is Exposed as Flawed and Falsified in Peer-Reviewed Scientific Journal | EVISA's News
Chemical speciation analysis for the life sciences | EVISA's News
Material database: Sigma-Aldrich - Matrix CRM - Soil, Sludge, Sediment: Trace Metals - Clay 1
PittCon 2006 | EVISA's Agenda of Events
Link database: As You Sow: Toxic Chocolate
Pediatricians Argue to Keep Thimerosal in Some Vaccines | EVISA's News
Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2005 (RoHS) | EVISA's News
Speciation and Toxicity | EVISA's News
Species of interest
Link database: The Lead Group: Lead in breast milk
Material database: Food Analysis Performance Assessment Scheme (FAPAS) - Test Material T1094 (Dairy Ration)
Material database: National Institute of Standards and Technology (NIST) - SRM 726 - Selenium, Intermediate Purity
Link database: National Research Council: Measuring Lead Exposure in Infants, Children, and Other Sensitive Populations
Prenatal mercury intake linked to ADHD | EVISA's News