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Lead Awareness

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Tommy Adams

on 5 August 2016

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Transcript of Lead Awareness

What is Lead?
Prevention
Personal Protection/Sanitation

Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:Daily
Remove:When wet or contaminated
Change:Daily
Exposure
Lead enters the body primarily through inhalation and ingestion.

Today, adults are mainly exposed to lead by breathing in lead-containing dust and fumes at work, or from hobbies that involve lead.

Lead passes through the lungs into the blood where it can harm many of the body's organ systems.

While inorganic lead does not readily enter the body through the skin, it can enter the body through accidental ingestion (eating, drinking, and smoking) via contaminated hands, clothing, and surfaces.

Workers may develop a variety of ailments, such as neurological effects, gastrointestinal effects, anemia, and kidney disease.
Lead Uses
The primary use of lead in the U.S. is for automobile lead-acid storage batteries

Lead-formed alloys are typically found in ammunition, pipes, cable covering, building material, solder, radiation shielding, collapsible tubes, and fishing weights

Lead was used extensively as a corrosion inhibitor and pigment in paints but concerns over its toxicity led to the CPSC in 1977 to ban the use of lead in paint for residential and public buildings

Prior to the mid 1980s, the organic lead compounds tetramethyl lead and tetraethyl lead were used as an antiknock additive and octane booster in gasoline but environmental exposure concerns resulted in the gradual phase-out of leaded gasoline in the United States

Organic lead compounds continue to be used in high octane fuel in the aviation industry for piston engine aircraft
Pure lead (Pb) is a heavy metal at room temperature and pressure and is a basic chemical element. It can combine with various other substances to form numerous lead compounds.
The word “lead” when used in the OSHA standard means elemental lead, all inorganic lead compounds and a class of organic lead compounds called lead soaps. This standard does not apply to other organic lead compounds.

Covered Compounds
Lead Awareness
29 CFR 1910.1025
29 CFR 1926.62

Pre-Test
What is lead?

Why should you care?

How might you be exposed to lead?

How can you protect yourself?
NIOSH REL
TWA (8-hour) 0.050 mg/m3

OSHA PEL
[1910.1025] TWA 0.050 mg/m3
Exposure Limits
First Aid

Eye:Irrigate immediately
Skin:Soap flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Up to 0.5 mg/m3:
(APF = 10) Any air-purifying respirator with an N100, R100, or P100 filter (including N100, R100, and P100 filtering facepieces)

Up to 2.5 mg/m3:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Respirator Recommendations
Construction workers are exposed to lead during the removal, renovation, or demolition of structures painted with lead pigments. Workers may also be exposed during installation, maintenance, or demolition of lead pipes and fittings, lead linings in tanks and radiation protection, leaded glass, work involving soldering, and other work involving lead metal or lead alloys.
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