The Times tested for lead, mercury and other heavy metals in Altadena and Pacific Palisades. From respiratory problems to ...

The trouble with lead is that it is so useful. Although the least revered of the classical mretals, its physical, chemical and mechanical properties gave it virtues that the ancients appreciated.

Over the past few years, their research group has been investigating the potential use of pencil lead, one of the simplest and most widely available materials, as an optical material. In their ...

OM Commodities will supply Ace Green with 30,000 metric tons of lead per year for recycling at Ace Green’s future Texas ...

said OM will supply it with at least 30,000 metric tons of lead scrap annually for at least 15 years. Ace added that it expects to recycle these materials at a planned flagship facility in Texas ...