proper machining mist collection for worker health safety part 2: health risks
TRANSCRIPT
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WORKER HEALTHAND SAFETY
PART 2
P R O P E R M A C H I N I N G M I S T C O L L E C T I O N F O R
AIR POLLUTION CONTROL
HEALTH R ISKS
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Airborne mists emitted during machining processes pose numerous risks to human health and safety. There are numerous adverse health effects are associated with metalworking fluids (MWFs). Harmful effects due to emissions include the following...
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Respiratory system: Aerosols and particles of <100 microns can be inhaled. Aerosols of <5 micronscan reach the lower respiratory tract. Aerosols of <2.5 microns can penetrate into the pulmonary alveoli. Resulting complications include asthma, chronic bronchitis, and hypersensitivity pneumonitis.
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Digestive tract: Larger particles are deposited in the nose, trachea and bronchi, and can also be swallowed. Contaminants entering through the digestive tract have been linked with some forms of cancer.
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Skin: Mineral oils have a degreasing and dehydration effect on the skin and often cause acne-likedisorders. People working with water-based, synthetic, and semi-synthetic metalworking fluids (MWFs) are more at risk of developing contact dermatitis.
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Irritative effects: Irritation to the skin, respiratory tract and mucous membranes are common. Vapors of low-viscosity hydrocarbons even have narcotic properties.
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Allergenic effects: Prolonged contact may cause allergic contact eczema. Coolant allergens that are inhaled can cause bronchial asthma for sensitive individuals.
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Toxic effects: These include changes in organs, as well as potential nerve damage.
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Carcinogenic reactions: Pancreatic, colon, bladder and liver cancer, tumors of the brain and respiratory organs.
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Mutagenic effects: Damages to genetic material.
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Immune disorders: The absorption of microorganisms into aerosols (emulsions) can cause other health hazards. Bacteria and fungi can lead to weakening of the body’s immune system, increasing the risk ofillness or disease.
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Personal exposure limits (PELs) have been developed to protect workers against many of these adverse health effects from machining mist. If your facility is meeting the PEL requirements but workers are still experiencing symptoms, it may be necessary to set lower goals.
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Learn more by down load ing the f ree wh i te paper The Impor tance of Proper Mis t Col lect ion for Heal th and Safety