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Cumulative Exposure: Air Contaminants

Cumulative Exposure: Air Contaminants. 8-hour work, 40 hours per Week?. E = C a T a + C b T b . . . . C n T n) + 8 Assume that Subtance A has an average exposure limit per 8 hours of 100ppm.

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Cumulative Exposure: Air Contaminants

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  1. Cumulative Exposure:Air Contaminants

  2. 8-hour work, 40 hours per Week? • E = Ca Ta + CbTb . . . . CnTn) + 8 • Assume that Subtance A has an average exposure limit per 8 hours of 100ppm. • Assume that worker gets 150 ppm x 2 hours, 75 ppm x 2 hours, 50 ppm x 4 hours over his/her shift.

  3. 8-hour work, 40 hours per Week? • E = Ca Ta + CbTb . . . . CnTn) + 8 • Given this formula, then (2 x 150 + 2 x 75 + 4 x 50) / 8 = 81.25 Scince 81.25 ppm < the standard of 100 ppm for this chemical, then this is within the acceptable range.

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