Table 2

Most frequent* occupations classified as having probable or certain occupational exposure to monocyclic aromatic hydrocarbons (MAHs), PROtEuS, Montreal, 2005–2012

Occupation (CCDO)N jobsMost common exposure coding
MAHsBenzeneTolueneXyleneStyrene
%RFC%RFC%RFC%RFC%RFC
5145. Service station attendants27593213321133211332110
6111. Fire-fighting occupations659532295322953219522189222
7513. Timber cutting and related occupations586733166331000
8161. Mixing and blending occupations, chemicals and related materials24672311722142233381330
8313. Machinist and machine tool setting-up occupations141553213311231122111222
8337. Boilermakers, platers and structural metal workers24713210000
8533. Electrical and related equipment installing and repairing occupations, n.e.c.84573214321432143210
8541. Cabinet and wood furniture makers104723325033264322512310
8561. Shoemaking and repairing occupations48962329023290232902310
8573. Moulding occupations, rubber, plastic and related products2857231392310018331
8580. Foremen: mechanics and repairmen, n.e.c.7658321113311723182317122
8581. Motor vehicle mechanics and repairmen2159432128121392313723128222
8582. Aircraft mechanics and repairmen29973217321732173210
8584. Industrial, farm and construction machinery mechanics and repairmen1768032110211921192110
8589. Other mechanics and repairmen, n.e.c.27673214331000
8592. Marine craft fabricating, assembling and repairing occupations23963311733226322173329221
8595. Painting and decorating occupations, except construction55843324433145331443317212
8785. Painters, paperhangers and related occupations578432193212123293210
8799. Other construction trades occupations, n.e.c.128563112622231221312110
9510. Foremen/women, printing and related occupations26542324632215231122310
9512. Printing press occupations63973327033243331432310
  • *Number of jobs >20 and percentage of jobs exposed to MAH >50%.

  • %, percentage of jobs exposed; CCDO, Canadian Classification and Dictionary of Occupations; F, frequency (1=< 5%, 2=5%–30%, 3=30%–90%, 4=90%–100% of work week); C, relative concentration level (1=low, 2=medium, 3=high, with low representing a level above the background environmental level); N jobs, number of jobs; n.e.c., not elsewhere classified; PROtEuS, Prostate Cancer & Environment Study; R, reliability (1=possible, 2=probable, 3=certain).