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Discussion :: Environmental Engineering

  1. Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million).

    2. A.
    0.002
    B.
    0.2
    C.
    1.2
    D.
    4.8

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    Answer : Option B

    Explanation :

    No answer description available for this question.

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