PATTERNS AND PATHWAYS OF LEAD CONTAMINATION IN
... MaxENT analyses suggested that lead in the top portion of the soil column is similarly related to all environmental variables considered, may be increasingly available after large-scale environmental disturbances. Lack of variation in coarse-scale habitat use ...
... MaxENT analyses suggested that lead in the top portion of the soil column is similarly related to all environmental variables considered, may be increasingly available after large-scale environmental disturbances. Lack of variation in coarse-scale habitat use ...
Lead Mobility - Sporting Arms and Ammunition Manufacturers` Institute
... Once oxidized, lead can be precipitated in a variety of forms including hydroxides, sulfates, sulfides, carbonates, and phosphates. Each of these precipitates are soluble, controlled largely by the site-specific water chemistry to which they are exposed. The important factors that directly control s ...
... Once oxidized, lead can be precipitated in a variety of forms including hydroxides, sulfates, sulfides, carbonates, and phosphates. Each of these precipitates are soluble, controlled largely by the site-specific water chemistry to which they are exposed. The important factors that directly control s ...
Lead neurotoxicity in children: basic mechanisms and clinical
... of their interactions with neuronal cells (Lindahl et al., 1999). While the astrocytic accumulation of lead may serve initially to protect neurons from the toxic effects of this metal, this glial store of lead may constitute a reservoir for the continuous release of lead into the brain and may ultim ...
... of their interactions with neuronal cells (Lindahl et al., 1999). While the astrocytic accumulation of lead may serve initially to protect neurons from the toxic effects of this metal, this glial store of lead may constitute a reservoir for the continuous release of lead into the brain and may ultim ...
Lead di(acetate)
... Some lead salts are already placed on the candidate list of substances of very high concern, on basis of their reprotoxic effects. Inclusion of lead di(acetate) on the candidate list would prevent the risk that lead di(acetate) will be used as an alternative for the lead salts which are already on t ...
... Some lead salts are already placed on the candidate list of substances of very high concern, on basis of their reprotoxic effects. Inclusion of lead di(acetate) on the candidate list would prevent the risk that lead di(acetate) will be used as an alternative for the lead salts which are already on t ...
Radiological implications of lead: A review article
... lead and lead-based materials in diagnostic radiology and the public and environmental health implications of the disposal of waste originating from such uses. An extensive literature search was conducted using various search terms such as lead, lead shielding, radiological implications of lead and ...
... lead and lead-based materials in diagnostic radiology and the public and environmental health implications of the disposal of waste originating from such uses. An extensive literature search was conducted using various search terms such as lead, lead shielding, radiological implications of lead and ...
Lead
Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin: plumbum) and atomic number 82. Lead is a soft, malleable and heavy post-transition metal. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air. Lead has a shiny chrome-silver luster when it is melted into a liquid. It is also the heaviest non-radioactive element (some radioactive elements, like technetium, are lighter).Lead is used in building construction, lead-acid batteries, bullets and shot, weights, as part of solders, pewters, fusible alloys, and as a radiation shield. Lead has the highest atomic number of all of the stable elements, although the next higher element, bismuth, has one isotope with a half-life that is so long (over one billion times the estimated age of the universe) that it can be considered stable. Lead's four stable isotopes have 82 protons, a magic number in the nuclear shell model of atomic nuclei. The isotope lead-208 also has 126 neutrons, another magic number, and is hence double magic, a property that grants it enhanced stability: lead-208 is the heaviest known stable isotope.If ingested, lead is poisonous to animals and humans, damaging the nervous system and causing brain disorders. Excessive lead also causes blood disorders in mammals. Lead is a neurotoxin that accumulates both in soft tissues and the bones. Lead poisoning has been documented from ancient Rome, ancient Greece, and ancient China.