Maximum permissible limit of mercury in human blood is ______________ micrograms/100 c.c?
Correct answer: B. 7
- A. 1
- B. 7
- C. 19
- D. 82
Explanation
The stated permissible mercury concentration in blood is about 7 micrograms per 100 cc. The other values do not represent the standard limit used in this environmental-health question.
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