The past use of lead in gasoline and higher lead content in paint can result in high lead levels in soil and house dust Lead is a heavy metal that is denser than most common material, it is soft and malleable and has a relatively low melting point of 621.4â°f (327.5â°c) Some commercial products still contain lead (and some imported products that aren’t regulated as they would be if made in the united states).
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Although nearly 50% of lead used today comes from recycled materials such as car batteries, its most common source is the mineral galena (lead sulfide) that forms as pockets or veins in carbonate rock.
This page provides basic information on lead including what it is, where it is found, how one can be exposed, and the health effects associated with lead.
Roofing lead is typically made from pure lead or a lead alloy that contains other metals such as tin, copper, and antimony How the lead alloy is made depends on how it will be used and what properties the lead sheet needs to have, such as strength, durability, and resistance to corrosion. Exposure to lead can occur in almost any trade Workers at the highest risk for lead exposure include those involved in iron work, construction, demolition, painting, plumbing, welding, heating and air conditioning, building maintenance and repair, electrical, carpentry, renovation, and remodelling.
Lead dust is currently the main source of lead exposure among children Lead is a dense metal A small roll of lead sheet may be heavier to lift than expected Ensure good lifting practice is used
To avoid being sprayed with molten lead, do not immerse wet or damp metal or tools into molten lead.
