Specific objectives were as follows: 1) To determine to what extent chemical agents were found present in the same industries in both the IMIS (OSHA) and the LIMS (IRSST) 2) To assess the equivalence of reported concentrations in the IMIS and the LIMS for a set of chemical agents in industries common to the two databases IRSST A Comparative Study of the IMIS (OSHA) and LIMS (IRRST) Occupational 7. [...] 3.3 Comparison of lists of industries with measured exposures in the IMIS and LIMS The purpose of this comparison was to determine the agreement between the IMIS and LIMS for the period from 1985 to 2011 on industries where particular chemical agents are present, regardless of the level of exposure. [...] The contrast between solvents and metals is notable: whereas the number of records for the other classes are of the same order of magnitude, there is a clear difference between the IMIS and LIMS for these classes, with three times as many solvent measurements in the LIMS as in the IMIS, and, conversely, three times more metal measurements in the IMIS than in the LIMS. [...] A) Medians of IMIS/LIMS ratios of medians (MrM) For the long-term data, 32 chemical agents were selected (n > 100 in the two databases) for the descriptive comparative analyses of the medians of the ratios of medians (MrM), 20 solvents and 12 metals, accounting respectively for 78% and 74% of the long-term results in the IMIS and LIMS for the period 1994-2011. [...] For the metals, the TLV® exceedance fractions were on the whole higher in the LIMS than in the IMIS, for both the long-term and the short-term data.
- Pages
- 75
- Published in
- Canada
