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. 2020 Apr 7;8:107. doi: 10.3389/fpubh.2020.00107

Table 1.

Overview of personal RCS-TWA (8 h) concentrations for two occupations in South African gold mines.

Job title Rock Drill Operator Scraper Winch Operator
Mine A B C D E F A D E F
Year 20001 20082 2008 20103 2010 2010 2000 2010 2010 2010
N 94 31 28 13 18 29 75 20 20 18
Median 0.094 0.04 0.014 0.048 0.024 0.013 0.045 0.03
AM 0.075 0.142 0.05 0.03 0.053 0.055 0.065 0.024 0.127 0.031
GM 0.101 0.038 0.016 0.051 0.027 0.015 0.055 0.021
GSD 2.42 2.22 3.59 1.8 3.5 2.85 3.69 2.56
P95 0.441 0.148 0.135 0.117 0.208 0.091 0.453 0.096
1

Data reported by teWaterNaude et al. (41).

2

Data reported by Kemsley (43).

3

Data reported by Kesilwe (42).