A) \[0.001\,\,mg/{{m}^{3}}\]
B) \[0.01\,\,mg/{{m}^{3}}\]
C) \[1.0\,\,mg/{{m}^{3}}\]
D) \[5.0\,\,mg/{{m}^{3}}\]
Correct Answer: C
Solution :
Inspirable copper dust takes a predominantly fibrous effect. The ALV of copper aerosol in the workplace atmosphere is\[0.5\,\,mg/{{m}^{3}}\], while the threshold limit value (TLV) is\[1.0\,\,mg/{{m}^{3}}\].
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