View source for Workers' Guide to Health and Safety:Metals

{{bctrail|segments=3|chaptitle=APPENDIX B: Common chemicals and materials}}
{{DISPLAYTITLE:Metals}}
{{SideSupplement|bookabbreviation=wgthas|pagealt=is from pages 503 to 505 of|bookurl=Workers' Guide to Health and Safety|chapterpdf=http://hesperian.org/wp-content/uploads/pdf/en_wgthas_2015/en_wgthas_2015_appb.pdf|booktitle=Workers' Guide to Health and Safety}}
{{chaptertoc|In this chapter:|
<ul>
<li>[[Workers' Guide to Health and Safety:APPENDIX B: Common chemicals and materials|APPENDIX B: Common chemicals and materials]]
  </li>
    <li>[[Workers' Guide to Health and Safety:Index of chemical names|Index of chemical names]]</li>
<li>[[Workers' Guide to Health and Safety:Acids|Acids]]</li>
<li>[[Workers' Guide to Health and Safety:Acid wash chemicals|Acid wash chemicals]]</li>
<li>[[Workers' Guide to Health and Safety:Ammonia and ammonium compounds|Ammonia and ammonium compounds]]</li>
<li>[[Workers' Guide to Health and Safety:Dopant gases|Dopant gases]]</li>
<li>[[Workers' Guide to Health and Safety:Dyes|Dyes]]</li>
<li>[[Workers' Guide to Health and Safety:Flame retardants|Flame retardants]]</li>
<li>[[Workers' Guide to Health and Safety:Fluxes|Fluxes]]</li>
<li>[[Workers' Guide to Health and Safety:Formaldehyde|Formaldehyde]]</li>
<li>[[Workers' Guide to Health and Safety:Isocyanates|Isocyanates]]</li>
<li>[[Workers' Guide to Health and Safety:Mercapto-based rubber accelerators|Mercapto-based rubber accelerators]]</li>
<li>[[Workers' Guide to Health and Safety:Metals|Metals]]</li>
<li>[[Workers' Guide to Health and Safety:Noble gases|Noble gases]]</li>
<li>[[Workers' Guide to Health and Safety:Phthalates|Phthalates]]</li>
<li>[[Workers' Guide to Health and Safety:Polymers|Polymers]]</li>
<li>[[Workers' Guide to Health and Safety:Radiation|Radiation]]</li>
<li>[[Workers' Guide to Health and Safety:Solvents|Solvents]]</li>
</ul>}}
Metals usually are solids, although mercury is a metal that is a liquid. Larger amounts of metals are harmful. Heavy metals are dangerous at any level of exposure because they accumulate in your body. Even though you might be exposed to only small amounts each day, it adds up over time to dangerous levels.

Toxic exposure to metals occurs primarily through inhaling metal dust and fumes when metals are heated, soldered, or cut. After you work with them, particles of metal or metal dust on your fingers and hands may also rub off onto food or drop into water and get into your body. Metals are most heavily used in the electronics industry in batteries, welding, recycling, and coatings. In the garment and shoe industries, metals are used in dyeing fabrics and tanning leather.

The charts include only some of the metals that exist. See [[Workers'_Guide_to_Health_and_Safety:Learn_about_chemicals_used_in_your_factory|Learn about chemicals used in your factory]] and [[Workers'_Guide_to_Health_and_Safety:APPENDIX_B:_Common_chemicals_and_materials#info|how to find information about other metals]]. See the [[Workers'_Guide_to_Health_and_Safety:Index_of_chemical_names|Index of chemical names]] to find alternative names for metals.

====Prevent or reduce exposure:====
*Use ventilation systems that extract fumes and replace or dilute dirty air with clean air (see [[Workers'_Guide_to_Health_and_Safety:Chapter_17:_Ventilation|Chapter 17: Ventilation]]).
*Enclose operations where possible.
*Wear metalworking gloves when working with metals. Use a face shield when heating, soldering, or cutting metals. Wear correct respirators that fit you, especially when heating metals. All protective clothing should be clean, available each day, put on before work, and never taken home with you (see [[Workers'_Guide_to_Health_and_Safety:Chapter_18:_Personal_protective_equipment_(PPE)|Chapter 18: Personal protective equipment]]).
*Have an emergency plan that includes first aid treatment and protective equipment for spills, splashes, and accidental exposures. Keep necessary emergency supplies at the worksite, well stocked, and accessible to workers.
*Wash your hands and face carefully before eating, drinking, or smoking.
<div id="metals"></div>
{{ChemChart|Metals|
{{ChemChartChemRow|banned|'''Cadmium''' (Cd)|CAS No. 7440-43-9|fire|repro|cancer|empty}}
{{ChemChartChemRow|banned|'''Chromium hexavalent''' (Cr(VI), chromium (VI), hexavalent chromium)|CAS No. 18540-29-9|fire|empty|cancer|empty}}
{{ChemChartChemRow|banned|'''Copper''' (Cu)|CAS No. 7440-50-8|empty|repro-maybe|empty|empty}}
{{ChemChartChemRow|banned|'''Lead''' (Pb)|CAS No. 7439-92-1|empty|repro-maybe|cancer|empty}}
{{ChemChartChemRow|empty|'''Mercury''' (Hg)|CAS No. 7439-97-6|empty|repro-maybe|empty|empty}}
{{ChemChartChemRow|empty|'''Nickel''' (Ni)|CAS No. 7440-02-0|fire|empty|cancer|empty}}
{{ChemChartChemRow|empty|'''Tin''' (Sn)|CAS No. 7440-31-5|empty|empty|empty|empty}}
{{ChemChartSection|WHAT ARE THEY?|'''Metals''' are usually solids of various colors and without odors. But some metals, such as '''mercury''', are liquid. Others, such as '''chromium hexavalent''' can be solid or liquid. Solid '''chromium hexavalent '''is usually yellow, orange, or red. '''Cadmium''' is blue-tinged and shiny. '''Copper''' is red-orange and turns a dull, brown color when exposed to air. '''Lead''' is blue-white and turns a grey color when exposed to air. '''Mercury''' is a silver-white, heavy, and odorless liquid. '''Nickel''' is a shiny silver metal. '''Tin''' is a silvery-white solid or a grey-green powder.}}
{{ChemChartSection|DO YOU WORK WITH THEM?|'''Metals''' are used in electronic, garment, and shoe industries. '''Cadmium, chromium hexavalent, copper''', and '''lead''' are used in electronics and in dyes in garments and shoes. '''Mercury, nickel''', and '''tin''' are used in electronics. '''Nickel''' is also used in metal buttons on jeans, buckles, zippers, and clasps.}}
{{ChemChartSection|WHEN THEY COME IN CONTACT WITH YOUR BODY|
{{ChemChartSubsection|SKIN|
They can irritate your skin. '''Copper, mercury''', and '''nickel''' cause rashes and itching. '''Mercury''' might discolor your skin grey or brown. See [[Workers'_Guide_to_Health_and_Safety:First_aid_for_chemicals#eyes|First Aid]].}}
{{ChemChartSubsection|EYES|
They irritate the eyes. '''Chromium hexavalent''' can damage the eyes. See [[Workers'_Guide_to_Health_and_Safety:First_aid_for_chemicals#eyes|First Aid]].}}
{{ChemChartSubsection|NOSE/LUNGS|
They can irritate your nose, throat, and lungs, causing coughing, wheezing, and difficulty breathing. Breathing '''chromium hexavalent''' can cause a burning sensation. Inhaling fumes can cause dizziness and headaches. They can also create a buildup of fluid in the lungs, called lung edema. Inhaling fumes may cause “metal fume fever,” which feels like a short-lived flu. '''Lead''' can cause severe irritability, chest pain, reduced memory, disturbed sleep, and mood and personality changes. Severe '''mercury''' poisoning results in shaking, memory loss, difficulty concentrating, weight loss, personality changes, and hallucinations. See [[Workers'_Guide_to_Health_and_Safety:First_aid_for_chemicals#breathe|First Aid]].}}
{{ChemChartSubsection|MOUTH/BELLY|They can damage the gastrointestinal tract and stomach. Some signs include loss of appetite, nausea, vomiting, diarrhea, and abdominal pain. Increased salivation and metallic taste are also signs of exposure to '''metals'''. See [[Workers'_Guide_to_Health_and_Safety:First_aid_for_chemicals#mouth|First Aid]] and seek medical attention.}}
}}
{{ChemChartSection|WHEN YOU ARE EXPOSED OVER TIME:|
'''All metals''' can harm your liver, kidneys, bones, and lungs.

'''Cadmium''' and '''lead''' can cause hypertension (high blood pressure). '''Cadmium''' can also cause bronchitis, anemia, loss of the sense of smell, and discolored teeth. It can damage the baby in the womb and damage men and women’s reproductive systems. It can cause kidney, prostate, and lung cancer.

'''Chromium hexavalent''' can cause lung cancer. It can damage the respiratory tract causing nose sores and nose bleeds. It can cause skin blisters and ulcers.

'''Copper''' can cause discoloration of the skin, hair, and teeth, and may reduce fertility in men and women.

'''Lead''' may cause birth defects and harm the baby in the womb. It may reduce fertility in men and women. It can cause lung, stomach, brain, and kidney cancers.

'''Mercury''' causes permanent psychological and neurological problems. It may cause miscarriages, reduce fertility in men and women, and harm the baby in the womb.

'''Nickel''' may cause lung cancer.

'''Tin''' damages the nervous system, causing shaking and tremors.}}
{{ChemChartSection|IF YOU ARE AT RISK OF EXPOSURE:|
Use ''Silver Shield'' or latex inner gloves, and nitrile or neoprene outer gloves with long cuffs (see [[Workers'_Guide_to_Health_and_Safety:Gloves|Gloves)]].

Use a [[Workers'_Guide_to_Health_and_Safety:Masks_and_respirators#Respirators with filters|respirator with filters]] that can filter '''metal''' dust and fumes.}}


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