Lead and asbestos exposure

Question 1

What occupations cause increased risk for lead poisoning?

Answer 1

1. battery manufacturing plants
2. bridge maintenance
3. soldering
4. steel welding
5. plastics
6. pottery

Question 2

Background levels of lead may be present

Answer 2

• old leaded paint
• lead in soils
• garages with old car batteries
• old mines
  old lead smelters
  “ take home” routes

Question 3

children and lead

Answer 3

• heavier beathing rate
• shorter inhale morem fumes
• 10x greater absorption in the gut
• exhibit more pica

Question 4

if blood levels high >0.4

Answer 4

1. Notify MOL
2. workers - right to refuse, right to know, comply with control programs, participate in group evaluations, participate in medical surveillance, participate in employer run control programs
   communicate with a JHS committee

Question 5

Occupations that may have asbestos exposure

Answer 5

1. Pipe fitter
2. plumber
3. Insulation/constrcution work
4. carpenter
5. electrician
6. ship worker

Question 6

what are desirable asbestos properties

Answer 6

1. high tensile strength
2. resistance to heat and acid, and
3. thermal, electrical, and acoustic insulating properties

Question 7

what are the non-malignant asbestos diseases

Answer 7

1. asbestosis: shortness of breath, inspiratory crackles, clubbing, Chest X-ray - small irregular opacities
2. pleural plaques
3. diffuse pleural thickening
4. rounded atelectasis

Question 8

what are the malignant asbestos diseases

Answer 8

1. lung cancer (25-45%)
2. mesothelioma
   larynx esophagus, stomach colon and rectal cancers

Question 9

Classify IARC

Answer 9

1. Evidence suggests its carcinogenic
   2a Probably carcinogenic: when there is inadequate evidence of carcinogenicity in humans and sufficient evidence of carcinogenicity in experimental animals

2b possibly carcinogenic limited evidence of carcinogenicity in humans and less than sufficient evidence of carcinogenicity in experimental animals

3. not carcinogenic to humans carcinogenicity is inadequate in humans and inadequate or limited in experimental animals.
4. no evidence

Question 10

SOME group 1 carcinogens

Answer 10

1. Asbestos
2. Benzenes
3. arsenic compounds
4. cadmium, chromium
5. aromatic amines
6. radiation
7. radon -222
8. nickel compounds