Document nm87QvD26Nw8n1pGY28vyDvLG

Table 8a The number and category of parenchymal X-ray abnormalities according to work activity Normal pleura Profusion of sma 11 irregular opacities Type of work activity Normal. X-ray 0/0 0/1 Abno rrr.al Parenchvma 1/0 1/1 1/2 2/1 2/2 2/3 No identified asbestos exposure or garage work 107 57 17 3 0 0 0 0 Garage employment 264 143 61 16 4 3 1 0 No brake work 60 27 13 4 0 1 0 0 Brake work 204 116 48 12 4 2 1 0 Other dust exposure 10 17 4 2 0i0 0 0 Possible asbestos exposure 30 23 8 0 1 0 00 Shipyard, heating trades 52 27 7 4 1 0 01 Direct asbestos exposure (insulation, factory work) 5 0 2 0 0 0 00 Totals 468 267 99 25 6 3. 1 1 The categorization of work activity is such that an individual in a given category would have no exposure of a category lower in the table, i.e., a person classified as a brake worker would not have other exposure to asbestos or other dusts- On the other hand, categories low in the table, shipyard workers, e.g., could also have ex posure to asbestos in categories higher in the table, such as brake work.