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Nov 22 2021

Ontario Contractors Embark on Silica Tool Pilot Project

  • Exposures, News

[Daily Commercial News] Sixty contractors in Ontario are taking part in a 12-month pilot testing the merits of a digital tool developed to quickly prepare control plans to mitigate the potential health risks of overexposure to crystalline silica. The proprietary software tool evaluates the conditions of a construction site and provides a contractor with an exposure control plan based on an algorithm of stored data from thousands of different construction projects in B.C. where silica has been an issue.

“It gives them an estimate on how exposed they are…and how to complete the task safely,” says Ammar Kavazovic, director of programs and initiatives at the BC Construction Safety Alliance (BCCSA).

“Anyone who has tried it is aware of how powerful it is.”

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95% Confidence Interval (CI)

95% Confidence Interval (CI) is a range of values (upper and lower) that you can be 95% certain contains the true mean of the population.

Relative Risk (RR)

The relative risk is a comparison of the risk of getting lung cancer for those exposed to diesel exhaust compared to those who have never been exposed to diesel exhaust – for example, if the relative risk is 1.5, it means that for the cumulative diesel exhaust exposure entered into the calculator, the risk associated with that exposure is 1.5 times higher than the background risk of lung cancer for those who have not been occupationally exposed to diesel exhaust.

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A snapshot of the Classroom Ventilation Calculation Tool