Which of the following correctly describes the use of a dosimeter?

A dosimeter is an instrument specifically designed to measure exposure to various environmental factors, often over a prolonged period. In the context of occupational hygiene, dosimeters are widely used to monitor sound exposure in workplaces. By measuring sound levels over time, they can determine if workers are exposed to harmful noise levels that could lead to hearing loss or other health issues.

Using a dosimeter for long-term monitoring is crucial because it captures variations in sound levels throughout a work shift, providing a comprehensive assessment of the worker's exposure. This is essential for compliance with occupational health regulations and for implementing necessary controls to protect workers.

In contrast, measuring wind speed, taking instantaneous sound level readings, or adjusting audio playback levels involves different tools or methods. Wind speed measurement requires an anemometer, while instantaneous sound readings would typically use a sound level meter. Adjusting playback levels is a function of audio equipment rather than a monitoring device used for health assessments. Thus, the correct answer emphasizes the dosimeter's specialized role in monitoring noise exposure over time rather than immediate or unrelated functions.