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Impact Crusher Silica Effects In Samoa Eastern

2015-12-14crusher operators and employees performing clean - ing activities at construction sites. 3 For data compiled by OSHA, the median exposure level for handheld grinder operators exceeded 0.2 mgm 3. 4 Assuming exposure continued at the same level for the entire shift, as is the case for some grinder operators. 5 NIOSH 2000a reported that an ...

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