What must be monitored and recorded in each place with respect to atmospheric contaminants?

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Multiple Choice

What must be monitored and recorded in each place with respect to atmospheric contaminants?

Explanation:
The key data is the concentration of atmospheric contaminants in each area. Measuring and recording how much harmful substances are present in the air shows whether workers are at risk, whether ventilation and control measures are effective, and supports compliance with exposure limits. Real-time gas detectors and dust sampling are used to quantify these concentrations, and the records allow trend analysis and timely alarms if thresholds are breached. Temperature, humidity, or noise relate to other environmental factors, not to the presence of contaminants, so they don’t fulfill the requirement of monitoring atmospheric contaminants.

The key data is the concentration of atmospheric contaminants in each area. Measuring and recording how much harmful substances are present in the air shows whether workers are at risk, whether ventilation and control measures are effective, and supports compliance with exposure limits. Real-time gas detectors and dust sampling are used to quantify these concentrations, and the records allow trend analysis and timely alarms if thresholds are breached. Temperature, humidity, or noise relate to other environmental factors, not to the presence of contaminants, so they don’t fulfill the requirement of monitoring atmospheric contaminants.

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