Department of Health Informatics, School of Public Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia.
Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia.
PLoS One. 2022 Jul 15;17(7):e0270589. doi: 10.1371/journal.pone.0270589. eCollection 2022.
Dessie is the trade center for northeast Ethiopia. High traffic flow plus overacting of promotion made the city noisy. There is a shortage of relevant evidence that enforces policy makers to design intervention plans. Therefore, this study aimed to explore the health-risky road traffic noise pollution in Dessie City, Ethiopia.
The study was conducted by purposive selection of the study area and sampling sites of the city from May 31, 2021 -June 6, 2021. Noise level recordings were taken by a digital Sound Meter and location data was collected by Global Positioning System. Residential, health facility, commercial, and mixed sites were identified by field observation. A total of 20 noise sampling points were included. The sampling points were selected by considering World Health Organization guideline. The measurements were taken twice a day at peak hours, between 8:00-11:00am and 4:00-7:00pm on all days of the week. The sound level meter was placed at a height of 1.5m and 2m from the curb. A total of 280 sound level records were conducted over one week.
Among twenty noise recording sites, more than 50% of them registered as excessive noisy sites for all types of site categories (health facility, residential, commercial, and mixed areas). For the seven days, average noise recordings were in the range of 66-72 dB at 83% of mixed areas; 33% of health facilities; 25% of residential areas, and 86% of commercial areas. The highest levels of noise pollution were seen at the Bus-station, Buanbuawuha Square, Tekuam, Arada, Ethio General Hospital, Ersha-seble, and Menafesha areas.
This study shows that the average noise level measurement within a week exceeded the permissible limits set by Ethiopia and the World Health Organization. It helps for policy development and timely actions against noise pollution and as baseline information for further investigation.
德西是埃塞俄比亚东北部的贸易中心。高交通流量加上过度的促销活动使城市变得嘈杂。缺乏相关证据迫使政策制定者制定干预计划。因此，本研究旨在探讨埃塞俄比亚德西市的健康风险道路交通噪声污染。
本研究通过有目的地选择研究区域和城市的采样地点，于 2021 年 5 月 31 日至 6 月 6 日进行。使用数字声级计进行噪声水平记录，并通过全球定位系统收集位置数据。通过现场观察确定了住宅、卫生设施、商业和混合场地。共包括 20 个噪声采样点。采样点的选择考虑了世界卫生组织的指导方针。在所有工作日的上午 8:00-11:00 和下午 4:00-7:00 之间的高峰时段，每天两次在声级计高度为 1.5m 和 2m 处进行测量。在一周内共进行了 280 次声级记录。
在 20 个噪声记录点中，超过 50%的点被标记为所有类型的场地（卫生设施、住宅、商业和混合区域）噪声过大。在七天内，混合区域的平均噪声记录在 66-72dB 之间，占 83%；33%的卫生设施；25%的住宅和 86%的商业区域。噪声污染最严重的地方是汽车站、Buanbuawuha 广场、Tekuam、Arada、埃塞俄比亚总医院、Ersha-seble 和 Menafesha 地区。
本研究表明，一周内的平均噪声水平测量值超过了埃塞俄比亚和世界卫生组织规定的允许限值。它有助于制定政策和及时采取行动应对噪声污染，并为进一步调查提供基线信息。
