Light as An Indoor Pollutant



You won’t hear too many environmentalists advocating for reductions in light pollution especially in workplaces. But a 2015 research study published in the American Journal of Critical Care concluded:

Implementation of quiet time, defined as turning down the lights in an ICU between 2 PM and 4

PM resulted in a significantly decreased mean light level. Although noise levels also decreased over time, the change was not significant. Nurses’ stress levels decreased significantly, confirming that controlling light may result in decreased stress levels and promote a healthier ICU working environment, a change that might lead to better patient care and less staff turnover (p. 401).