Document Type : Original Article
Authors
1 Department of Geomorphology, Faculty of Planning and Environmental Sciences, University of Tabriz, Tabriz, Iran
2 Faculty member, Psychology Department, University of Tabriz
Abstract
Excessive artificial light at night contributes to light pollution, which is recognized as an environmental hazard and a significant challenge to human health in the 21st century, particularly in urban areas. In this context, the present study was conducted to investigate the distribution of light pollution and evaluate its effects on the mental health of the citizens of Tabriz. In the present study, VIIRS_DNB satellite data were utilized to extract a nighttime light pollution map for the city of Tabriz. Additionally, the study employed the World Health Organization (WHO) standard self-report questionnaire, SRQ-20. The statistical population comprised all citizens of Tabriz, with a sample size of 200 individuals. Data analysis was conducted using the one-sample t-test and Duncan's test. According to the research findings, the range of nighttime artificial light in Tabriz City varies from a minimum of 0.3117 to a maximum of 203.794 Nanowatts/sr/cm². Light pollution clusters are located in areas 1, 2, 5, and 8 of the city. The results of the t-test indicated that poor sleep, lack of readiness to engage in productive activities, and feelings of fatigue are among the most significant psychological consequences of nighttime light pollution. Furthermore, the results of Duncan's test suggest that light pollution does not have a significant geographical impact on mental health. Despite the presence of clustered pollution in certain areas, it did not have a greater effect on the mental health of residents in these areas. The results of the present study underscore the necessity of addressing light pollution to enhance biological sustainability and promote public health among citizens. Hence, it is essential to address the issue of light pollution as a significant biological hazard in urban areas during the urban planning process.
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