serves as a major accumulator of lead from various sources, including ne particles that can be ingested as soil dut s 12. Lead in soil can react with other components to form lead-containing minerals.

Lead is the chemical element represented by the symbol Pb and possesses the atomic number 82. It is a heavy metal with various properties that have made it useful for a range of applications.

A book, therefore, on the manufacture of lead and zinc pigments, written by one so thoroughly familiar with all the processes as Dr. Holley, is of great interest to English readers. Lead and Zinc ...

We show that when lead is corroded by the oxidizing hydrocarbon, the oxidation chain reaction is stopped as effectively as if a classical oxidation inhibitor was present. ... Nature 239, 451 (1972 ...

A group of independent epidemiological studies shows that fetal exposure to levels of lead previously considered safe is linked to impairment of infant mental development. ... Nature 329, 297 ...

IT has been known for the past two decades that in the extrusion of lead cable sheaths and pipe on the hydraulic press, the presence of oxides may result in the existence of irregularities in the ...

There is clear evidence of lead pollution caused by motor vehicles close to busy roads2–4, and the three-fold increase in lead concentrations in snow from the Greenland ice-cap during the past ...

The importance of environmental lead was emphasized by Monier-Williams in 1938 (ref. 1), and has since resulted in numerous studies2–4. Nature - Lead and Lead-210 in Rainwater.

Lead commonly occurs in mineral deposits along with other base metals, such as copper and zinc. Lead deposits are broadly classified on the basis of how they are formed. Lead is produced mainly from three types of deposits: sedimentary …

At least 10,000 virus species have the ability to infect humans but, at present, the vast majority are circulating silently in wild mammals 1,2.However, changes in climate and land use will lead ...

Lead, a soft, silvery white or grayish metal in Group 14 (IVa) of the periodic table. Lead is very malleable, ductile, and dense and is a poor conductor of electricity. Known in antiquity and believed by the alchemists to be the …

THERE have been several attempts1–6 to identify the sources of lead in the air and vegetable or animal tissue by analysis of stable isotopes. Blood sampling is the easiest means of conducting a ...

IN a recent publication Patterson1 shows that the measured isotopic abundances of leads from five different meteorites and recent terrestrial ocean sediments are simply related. From this fact ...

THE history of lead mining in the Tyne, Wear and Tees areas during the eighteenth and nineteenth centuries was described by Dr. A. Raistrick before the Durham Philosophical Society on March 15.

LEAD and its compounds are among the most serviceable of metallic products, but unfortunately their use is attended by a great amount of human suffering, and lead-poisoning, or, as it is variously ...

The lead concentrations in soil, vegetables for all treatments and water samples ranged from 1.038–10.478, 0.09346–9.0639 mg/kg and 0.036–0.26448 mg/L, The concentration of lead in soil ...

The Nature Index tracks the affiliations of high-quality scientific articles. Updated monthly, the Nature Index presents research outputs by institution and country. Use the Nature Index to ...

IN his recent discussion of this subject, Prof. Harold Jeffreys1 suggests two statistical methods for estimating t0, the age of the earth's crust, from the data on tha isotopic constitution of ore ...

Hazard ratios (HRs) and 95% confidence intervals (CI) for urinary lead and blood lead concentrations in relation to all-cause mortality were estimated using a weighted Cox regression model.

Lead is a naturally occurring, soft, bluish-gray heavy metal. Although nearly 50% of lead used today comes from recycled materials such as car batteries, its most common source is the …

The author tells us that "it is not probable that one-thouh of one per cent. of white lead used in paint is ever discoloured by sulphur, so it is not worth talking about."

Transvenous lead extraction (TLE) is a critical procedure for managing complications associated with cardiac implantable electronic devices (CIEDs), such as pacemakers and defibrillators. As the ...

Lead is an element of the periodic table with an atomic number of 82. Lead (Pb) is a metal which has been used by humans for centuries dating back to 7000 BC. The element is present in various minerals in minute quantities excluding …

Nature - Lead correction. Authors and Affiliations. Neuroepidemiology Unit, Gardner House, Children's Hospital, Boston, Massachusetts, 02115, USA

Lead occurs naturally as a combination of four isotopes. Lead consists of Four naturally occurring isotopes: 204 Pb, 206 Pb, 207 Pb and 208 Pb. Lead has an atomic number of 82 and is a grey metal. It has a melting …

DURING the past hundred years about 1 × 1014 g of lead has been dispersed by man in the biosphere1, and the question arises as to whether this has increased the exposure of modern societies to ...

The radiogenic nature of Pb in average crust and mantle probably requires some interaction between mantle and core during core formation and is thus incompatible with heterogeneous accretion ...

IN the investigation of the isotopes of 'common lead' it was found 1 that anomalous galenas from a given area produce lead isotope ratios which, when represented on a 206 Pb/ 204 Pb versus 207 ...

Lead (Pb) is a potent and pervasive environmental contaminant and neurotoxicant with profound and enduring effects on human health. Children are especially vulnerable to Pb poisoning due to their ...

THE complex formation between lead (II) and acetato ions has been examined at 25° C with 3 M (Na)ClO4 as the ionic medium. The equilibrium constants were determined by potentiometric titrations ...