How is the risk assessment performed in the industrial hygiene when there are several pollutants?

I- The effects are independent for each of the p...

Question

How is the risk assessment performed in the industrial hygiene when there are several pollutants?

I- The effects are independent for each of the pollutants.
II- The effects are additive (or systemic toxic), as there is no certainty that their effects are exclusively independent.
III- In the case of additive effects, the value of K is calculated.
IV- In the case of independent effects, it must be fulfilled for all of them that C1 < TLV-TWAl and C máxl < TLVl-C, C2 < TLV-TWA2 and C máx2 < TLV2-C, C3 < TLV-TWA3 and C máx3 < TLV3-C.
V- In the case of additive effects, if K > 1, there is a hygienic risk.
a) I, II, III, IV e V estão corretas.
b) Apenas I, II, III e IV estão corretas.
c) Apenas I, III, IV e V estão corretas.
d) Apenas II, III, IV e V estão corretas.

Ed · Answer

A resposta correta é a alternativa c) Apenas I, III, IV e V estão corretas. No caso da avaliação de risco em higiene industrial quando há vários poluentes, os efeitos podem ser independentes para cada um dos poluentes (alternativa I). No entanto, os efeitos também podem ser aditivos, ou seja, não há certeza de que seus efeitos sejam exclusivamente independentes (alternativa II). No caso de efeitos aditivos, é calculado o valor de K (alternativa III). No caso de efeitos independentes, é necessário que sejam cumpridas as condições C1  1, há um risco higiênico (alternativa V).

How is the risk assessment performed in the industrial hygiene when there are several pollutants? I- The effects are independent for each of the p...

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