Nitrogen Dioxide exposure is associated with which source?

Study for the NSW Deputy Coal Mine Exam. Prepare with detailed multiple choice questions, each with hints and explanations. Master test content on your way to certification!

Multiple Choice

Nitrogen Dioxide exposure is associated with which source?

Explanation:
Nitrogen dioxide exposure in mining environments mainly comes from diesel exhaust due to combustion in diesel engines. Diesel engines release nitrogen oxides (NOx), including NO and NO2; in the presence of air, NO can form NO2, which workers may inhale, especially in underground or poorly ventilated areas where exhaust concentrates. Welding can produce nitrogen oxides too, but the setting described here typically links NO2 exposure more strongly to diesel-powered equipment. Bag sampling is a method for collecting samples, not a source of NO2, and solar radiation is not a direct source of this occupational exposure.

Nitrogen dioxide exposure in mining environments mainly comes from diesel exhaust due to combustion in diesel engines. Diesel engines release nitrogen oxides (NOx), including NO and NO2; in the presence of air, NO can form NO2, which workers may inhale, especially in underground or poorly ventilated areas where exhaust concentrates. Welding can produce nitrogen oxides too, but the setting described here typically links NO2 exposure more strongly to diesel-powered equipment. Bag sampling is a method for collecting samples, not a source of NO2, and solar radiation is not a direct source of this occupational exposure.

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