Occupational health hazards from road construction and sealing work

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      <subfield code="a">Measurements of exposure of road workers to silica-containing dusts, hydrocarbon solvents, lime and cement dusts, and polycyclic aromatic hydrocarbons showed that exposures were within permissible limits for these materials. Possible effects of exposure to all materials were mitigated by a work pattern of less 8h daily exposure for only about half of each year</subfield>
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