silica dust, crystalline, in the form of quartz or cristobalite - IARC ...
silica dust, crystalline, in the form of quartz or cristobalite - IARC ...
silica dust, crystalline, in the form of quartz or cristobalite - IARC ...
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<strong>IARC</strong> MONOGRAPHS – 100C<br />
Table 1.3 (cont<strong>in</strong>ued)<br />
Reference, <strong>in</strong><strong>dust</strong>ry<br />
and country, period (if<br />
rep<strong>or</strong>ted)<br />
Flanagan et al. (2006)<br />
Construction, USA,<br />
1992–2002<br />
Akbar-Khanzadeh et al.<br />
(2007)<br />
Construction, USA<br />
Bakke et al. (2002)<br />
Construction, N<strong>or</strong>way,<br />
1996–99<br />
L<strong>in</strong>ch (2002)<br />
Construction, USA, 1992–98<br />
Meijer et al. (2001)<br />
Construction, USA, 1992–93<br />
Miscellaneous operations<br />
Hicks & Yager (2006)<br />
Coal-fired power plants,<br />
USA<br />
Site, occupation, <strong>or</strong> exposure<br />
circumstance<br />
Abrasive blasters, surface and tuck<br />
po<strong>in</strong>t gr<strong>in</strong>ders, jackhammers, rock<br />
drills<br />
Concentration<br />
<strong>of</strong> respirable<br />
<strong>crystall<strong>in</strong>e</strong> <strong>silica</strong><br />
(mg/m 3 )<br />
Geometric mean<br />
(GSD)<br />
0.13 (5.9) 1374<br />
Number <strong>of</strong><br />
samples<br />
Uncontrolled conventional<br />
gr<strong>in</strong>d<strong>in</strong>g<br />
Wet gr<strong>in</strong>d<strong>in</strong>g 0.896 7 sessions<br />
Local exhaust ventilation gr<strong>in</strong>d<strong>in</strong>g 0.155 6 sessions<br />
Comments<br />
Personal <strong>silica</strong> measurements collected as part <strong>of</strong> a <strong>silica</strong>monit<strong>or</strong><strong>in</strong>g<br />
compilation project; data provided by 3 federal<br />
<strong>or</strong> state regulat<strong>or</strong>y agencies (n = 827 samples), 6 university<br />
<strong>or</strong> research agencies (n = 491), and 4 private consultants <strong>or</strong><br />
contract<strong>or</strong>s (n = 134)<br />
Arithmetic mean Personal samples collected dur<strong>in</strong>g gr<strong>in</strong>d<strong>in</strong>g operations <strong>in</strong><br />
61.7 5 sessions<br />
a controlled field lab<strong>or</strong>at<strong>or</strong>y to evaluate <strong>the</strong> effectiveness<br />
<strong>of</strong> wet gr<strong>in</strong>d<strong>in</strong>g and local exhaust ventilation; samples<br />
Geometric mean<br />
(GSD)<br />
Tunnel w<strong>or</strong>kers α-Quartz, 0.035<br />
(5.0)<br />
Abrasive blast<strong>in</strong>g <strong>of</strong> concrete<br />
structures<br />
Drill<strong>in</strong>g concrete highway<br />
3.3<br />
pavement<br />
Concrete-wall gr<strong>in</strong>d<strong>in</strong>g 0.26<br />
Concrete saw<strong>in</strong>g 10.0<br />
Mill<strong>in</strong>g <strong>of</strong> asphalt 0.36<br />
299<br />
collected and analysed us<strong>in</strong>g NIOSH methods 0600 and<br />
7500<br />
Personal samples collected as part <strong>of</strong> exposure survey;<br />
sampl<strong>in</strong>g duration: 5 to 8 h; respirable <strong>dust</strong> analysed<br />
gravimetrically; <strong>silica</strong> analysed by NIOSH method 7500<br />
TWA (8-hour) Personal samples collected as part <strong>of</strong> NIOSH eff<strong>or</strong>t to<br />
2.8<br />
characterize respirable <strong>silica</strong> exposure <strong>in</strong> construction<br />
<strong>in</strong><strong>dust</strong>ry; respirable <strong>dust</strong> collected and analysed acc<strong>or</strong>d<strong>in</strong>g<br />
to NIOSH method 0600; <strong>silica</strong> analysed by NIOSH method<br />
7500<br />
Arithmetic mean Personal samples <strong>of</strong> respirable <strong>dust</strong> and <strong>silica</strong>; gravimetric<br />
Concrete w<strong>or</strong>kers 0.06 96<br />
analysis <strong>of</strong> respirable <strong>dust</strong>; <strong>silica</strong> analysed by <strong>in</strong>frared<br />
spectrophotometry<br />
Arithmetic mean Personal breath<strong>in</strong>g zone samples collected dur<strong>in</strong>g n<strong>or</strong>mal<br />
N<strong>or</strong>mal production activities 0.048 108<br />
full shifts and analysed by NIOSH method 7500<br />
366
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