1. Occupational skin diseases
Dr Omid Aminian

2. Occupational Dermatoses
Occupational association first made by Ramazzini
Percival Pott occupational induced cancer of the scrotum in chimney sweeps in 1775
25% of work-related illness

3. Work place agents that induced skin disorder
Chemicals
Acids
Alkalis
Solvents
Oils
Detergents
Resins
Plastics
Metals
Petroleum product
Plant & wood
Physicals
Temperature
Ionizing radiation
Non ionizing radiation
Biologic
Viruses
(orf-wart-herpes)
Bacteria
(anthrax-erisopeloid)
Fungi
(candida-dermatophyte)
Parasites
(scabies-
(schistosomiasis)
Mechanicals
Pressure
Friction
Vibration

4. Important causal agents of occupational skin illness
Machinery Cutting oils Solvents
Metal products Solvents Metallic salts
Electronic equipment Solvents Plastic & resin
Food products Fruits & vegetables
Soap & detergents
Agriculture Chemicals Fruits & nuts
Health services Soap & detergents Infectious agents

5. Occupational dermatoses
Occupational injuries Laceration & Puncture % Chemical & Thermal burn % Others %5
Occupational Illness
Contact dermatitis %90
Infectious diseases %5/5
Neoplasm & others %4/5

6. Occupational Dermatoses
Seven common conditions
1. irritant contact dermatitis
2. allergic contact dermatitis
3. photosensitive dermatitis
4. pigment alterations
5. acneiform conditions
6. contact uticaria
7. malignancies

7. Contact Dermatitis 90% of skin lesions seen in work placep
80% -- irritant
20% -- allergic

8. Irritant Contact Dermatitis
Erythema to eczematous changes to papules, vesicles
Caused by chronic exposure to mild irritants Fissuring
Hyperpigmentation
Hardening

9. Skin disease and possible etiologies
Ulceration strong acids (HF-H2SO4)
strong alkali (NaOH-KOH)
solvent (acrylonitrile-CS2)
Folliculitis& arsenic trioxide-glass fiber
acne PCB oil-
Milia occlusive dressing
UV-IR
Leukoderma phenol-cresol
Alopecia thallium-chloroprene
Urticaria cosmetics-plants
Granuloma silica-beryllium
Lichenoid p-phenylene diamine
Scleroderma vinyl chloride-silica

10. OCCUPATIONAL HISTORY Description of all job Work exposure
Timing of symptom
Illness among other workers
Non-work exposure

11. PREVENTION Hazards identification Engineering controls
Chemicals substitution
Personal hygiene
Personal protection
gloves,barriercream,clothing
6. Education & training
Preemployment & periodic
examination

12. AGENTS ASSOCIATED WITH DERMAL INJURIES
APPLICATION
THERAPY
ALKALI
Cement
cleaners
Water irrigation
CHROMC ACID
electroplating
Ascorbic acid %10
PHENOL
pharmaceutical
Saline irrigation
Poly ethylene glycol
HYDRO FLURIC ACID
Glass etching
Magnesium sulfate %25
Calcium gluconate%10