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:

Material database: IRMM - Institute for Reference Materials and Measurements - ERM-CE196 Bovine Blood
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Instrument database: CPI International - ModBlock™ Digestion System
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Material database: Sigma-Aldrich - Matrix CRM - Soil, Sludge, Sediment: TCLP Metals - Loam 1
Material database: International Atomic Energy Agency (IAEA) - IAEA-V-10 Trace Elements in Hay Powder
Journals database: Journal of Material Research
Material database: International Atomic Energy Agency (IAEA) - IAEA-155 Trace Elements in Whey Powder
Material database: Food Analysis Performance Assessment Scheme (FAPAS) - Test Material T07107 (Coffee)
Link database: CBI: EU legislation: Substances in vehicles (ELV)
Link database: Mineral Information Institute: Thallium
Material database: RECIPE Chemicals + Instruments GmbH - ClinChek 8848 Urine Control lyophilised / trace elements level II
Material database: National Institute of Standards and Technology (NIST) - SRM 2974 - Mussel Homogenate
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Material database: National Analysis Center for Iron & Steel (NACIS) - NCS ZC73014 - Trace Elements in Tea
Journals database: Reviews in Environmental Science and Biotechnology
Instrument database: GBC Scientific Equipment Ltd. - Avanta Ultra Z
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Journals database: Journal of Exposure Science and Environmental Epidemiology
Material database: JRC - Joint Research Centre - BCR-320R - Channel Sediment