Document 3Q0ZEMVnvadZqyLjaaMwBjw3n
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Appendix 1
Table A1: List of Threshold Limit Values (TLV) for dust types (ACGIH, 1998)
Dust
TLV-TWA (mg/m3)
Aluminium - Metal dust
10.0
Aluminium - Pyro powders
5.0
Aluminium - Soluble salts - Al
2.0
Aluminium - Fumes - Al
5.0
Aluminium oxide
10.0
Antimony - Compounds - Sb
0.5
Arsenic - Elemental and inorganic - As
0.01
Asbestos - All forms
0.1 f/cc
Barium - Soluble compounds - Ba
0.5
Beryllium and compounds - Be
0.002
Borates - Salts - B
1.0
Cadmium - Elemental - Cd
0.01
Cadmium - Compounds - Cd
0.002
Calcium oxide - CaO
2.0
Carbon black - C
3.5
Chromite ore processing - Cr
0.05
Chrome - Metal and Cr III compounds
0.50
Chrome - Metal soluble VI compounds
0.05
Chrome - Insoluble Cr VI compounds
0.01
Coal - Bituminous
0.9
Coal - Anthracite
0.4
Coal tar pitch
0.2
Cobalt-Metal, dust and fumes - Co
0.02
Copper - Dust and mists - Cu
1.0
Copper - Fumes - Cu
0.20
Ferrovanadium dust
1.0
Fluorides - F
2.5
Gypsum - Calcium sulphate
10.0
Hydroquinone
2.0
Iron - Soluble salts - Fe
1.0
Iron - Oxide fumes - Fe2O3
5.0
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Table A2: List of Threshold Limit Values (TLV) for dust types (ACGIH, 1998)
Pollutant
TLV-TWA (mg/m3)
Kaolin
2.0
Lead - Elemental and organic, as Pb
0.05
Lead arsenate
0.15
Lead chromate, as Pb
0.05
Lead chromate, as Cr
0.012
Limestone - Calcium carbonate
10.0
Magnesite
10.0
Magnesium oxide fumes
10.0
Manganese - Mn
0.2
Mercury - Hg - Alkyl compounds
0.01
Mercury - Hg - Aryl compounds
0.1
Mercury - Hg - Inorganic forms
0.025
Mica
3.0
Molybdenum - Soluble compounds
5.0
Molybdenum - Insoluble compounds
10.0
Nickel - Elemental/metal
1.5
Nickel - Insoluble compounds - Ni
0.2
Nickel - Soluble compounds - Ni
0.1
Oil mist - Mineral
5.0
Perlite
10.0
Platinum - Metal compounds - Pt
1.0
Platinum - Soluble compounds-Pt
0.002
Portland cement
10.0
Rhodium - Metal
1.0
Rhodium - Insoluble, as Rh
1.0
Rhodium - Soluble, as Rh
0.01
Selenium and compounds, as Se
0.2
Silica - Inhalable particulate, amorphous
10.0
Silica - Respirable particulate
3.0
Precipitated silica
10.0
Silica fumes
2.0
Silica, fused
0.1
2
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Table A3: List of Threshold Limit Values (TLV) for dust types (ACGIH, 1998)
Pollutant
TLV-TWA (mg/m3)
Silica gel
10.0
Silica, Crystalline - Cristobalite
0.05
Silica, Quartz
0.1
Silica, Tridymite
0.05
Silica, Tripoli - respirable
0.1
Silver - Metal, as Ag
0.1
Silver - Soluble, as Ag
0.01
Soapstone - Inhalable
6.0
Soapstone - Respirable dust
3.0
Sodium hydroxide, NaOH
2.0
Talc - No asbestos
2.0
Tantalum metal and oxide dusts, Ta
5.0
Tellurium compounds, Te
0.1
Tin - Metal
2.0
Tin - Oxide and inorganic compounds
2.0
Tin - Organic compounds
0.1
Titanium oxide
10.0
Tungsten - Insoluble
5.0
Tungsten - Soluble
1.0
Uranium
0.2
Vanadium pentoxide, V2O5
0.05
Welding fumes
5.0
Zinc chromates, as Cr
0.01
Zinc oxide fumes, Zn
5.0
Zinc oxide dust, Zn
10.0
Zirconium and compounds, Zr
5.0
Diesel exhaust particulates
0.15
3
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TableA4. Occupational exposure limits for respirable coal dust andfree crystalline silica in various countries (Source: NIOSH, 1995)
Country
Australia Belgium Brazil Finland
Germany Italy Netherlands South Africa
Sweden UK USA
Yugoslavia
Recommended Value
3 mg/m3 10 mg/m3 / (% quartz + 2) 8 mg/m3 / (% quartz + 2) 2.0 mg/m3 0.2 mg/m3 0.1 mg/m3 0.15 mg/m3 4 mg/m3 3.33 mg/m3 10 mg/m3 / (% quartz + 3) 2.0 mg/m3 0.075 mg/m3 0.1 mg/m3 2.0 mg/m3 3.0 mg/m3 (platinum mines) 0.05 mg/m3 3.8 mg/m3 2.0 mg/m3 10 mg/m3 / (% quartz) 10 mg/m3/ (% quartz + 2) Half of the value for quartz 4.0 mg/m3 0.07 mg/m3 (100) / (% FCS) 0.07 mg/m3
Comment
5 % respirable free silica
Coal dust Quartz (fine dust < 5 |im) Silica: cristobalite, tridymite Quartz Dust with quartz (> 1% by wt) Coal dust with < 1 % quartz Coal dust with > 1 % quartz < 5 % respirable quartz Silica Alpha quartz > 5 % Alpha quartz < 5 % Alpha quartz < 5 % Silica: cristobalite, tridymite At coal face < 5 % silica Coal dust with > 5 % silica Silica: quartz Silica: cristobalite, tridymite < 2 % free crystalline silica > 2 % free crystalline silica Pure quartz (fine dust)
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Table A5. Dust types, sources and health hazards (Source: ACGIH, 1998)
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Dust Type Aluminum Antimony dust Arsenic Barium sulphate Beryllium dust Cadmium Cement Chrome dust Coal dust Cobalt dust or salt Corundum Graphite Iron dust Kaolin Magnesium oxide Manganese dioxide Mica Platinum Silica dust Sericite - Micaceous Silver Sulphur Tin Talc Tellurium Tungsten
Uranium Vanadium Zinc chromate
Source Mining, processing Metal works Mining, processing Metal works Beryllium ore mining Other works Plants and other works Metal works Mining, preparation plants Metal works Mills Non-metal works Mines, foundries, welding Metal works Metal works Metal works Metal works Metal works Metal and non-metal works Metal works Metal works Quarry works Metal works Other works Other works Metal works
Other works Metal works Metal works
Health Hazard Lung irritation Pneumonitis Lung cancer Fibrosis Berylliosis Cancer, kidneys Dermatitis Lung cancer Pneumoconiosis Interstitial fibrosis Fibrosis Fibrosis Siderosis Fibrosis Metal fume fever Manganism, lungs Silicosis Silicosis and others Silicosis Pneumoconiosis Argyria, bronchitis Pneumoconiosis Stannosis Pneumoconiosis Cyanosis, liver Irritation
Kidneys, cancer Lung irritation Lung cancer
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Appendix 2
Elements of a Medical Screening and Medical Surveillance Programme (NIOSH, 1995)
1. Preplacement spirometric examination within three months and chest X-ray (within three to six months) as soon as possible after beginning employment.
2. A spirometric examination each year for the first three years after beginning employment and every two to three years thereafter if the worker is still engaged in work.
3. A chest X-ray every four to five years for the first 15 years of employment and every three years thereafter if the worker is still engaged in work.
4. A chest X-ray and spirometric examination when employment ends if more than six months have passed since the last examination.
5. A standardized respiratory symptom questionnaire, such as the American Thoracic Society (ATS) respiratory questionnaire (Ferris, 1978), to be administered at the preplacement examination and updated at each periodic examination.
6. A standardized occupational history questionnaire (listing of all jobs held up to and including present employment, a description of all duties and potential exposures, and a description of all protective equipment the worker has used) to be administered at the preplacement examination and updated at each periodic examination.
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Appendix 3 Elements of a Respiratory Protection Programme (NIOSH, 1995)
1. A designated individual responsible for the administration of the programme. 2. A written programme for respiratory protection, containing standard operating
procedures governing the selection and use of respirators. 3. Initial and annual training of workers in the proper use and limitations of respirators. 4. Annual training of people whose job requires them to be certified at workplaces in the
use of self-contained self-rescuer devices. 5. Evaluation of working conditions in the workplace (including periodic air monitoring
of worker exposures) to identify situations that require respiratory protection. 6. Routine inspection, cleaning, maintenance and proper storage of respirators. 7. Initial quantitative fit testing by a trained and qualified person to determine the level of
protection provided by each respirator worn. 8. Additional daily fit checks conducted by the worker to ensure proper assembly,
function and face-seal integrity of the respirator. 9. Medical evaluation of the worker's physical ability to perform work continuously while
breathing through a respirator. 10. Continual evaluation of programme effectiveness through the monitoring of respirator-
use patterns, quarterly inspection of the respirator maintenance programme and testing of supervisors and workers for awareness of respirator use requirements.