The person would experience the GREATEST hearing damage or loss a subway train conductor who works 50 hours per week.
A noise is usually known to be an unwanted sound, noise which are usually above 70 decibels dB and experienced over an extended and prolonged period of time have the tendency of leading to hearing impairment which can cause damage or loss to hearing.
Therefore, since the subway train conductor has the highest amount of time of exposure to noise, then the conductor has the greatest hearing damage or loss.
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