Mirzaei Mohsen, Verrelst Jochem, Arbabi Mohsen, Shaklabadi Zohreh, Lotfizadeh Masoud
Environmental Pollutions, Grape Environmental Science Department, Research Institute for Grapes and Raisin (RIGR), Malayer University, Malayer 65719-95863, Iran.
Image Processing Laboratory (IPL), Parc Científic, Universitat de València, Paterna, 46980 València, Spain.
Remote Sens (Basel). 2020 Apr 24;12(8):1350. doi: 10.3390/rs12081350.
Urban heat islands (UHIs) are one of the urban management challenges, especially in metropolises, which can affect citizens' health and well-being. This study used a combination of remote sensing techniques with field survey to investigate systematically the effects of UHI on citizens' health in Isfahan metropolis, Iran. For this purpose, the land surface temperature (LST) over a three-year period was monitored by Landsat-8 satellite imagery based on the split window algorithm. Then, the areas where UHI and urban cold island (UCI) phenomena occurred were identified and a general health questionnaire-28 (GHQ-28) was applied to evaluate the health status of 800 citizens in terms of physical health, anxiety and sleep, social function, and depression in UHI and UCI treatments. The average LST during the study period was 45.5 ± 2.3 °C and results showed that the Zayandeh-Rood river and the surrounding greenery had an important role in regulating the ambient temperature and promoting the citizens' health. Citizens living in the suburban areas were more exposed to the UHIs phenomena, and statistical analysis of the GHQ-28 results indicated that they showed severe significant ( < 0.05) responses in terms of non-physical health sub-scales (i.e., anxiety and sleep, social functioning, and depression). Therefore, it can be concluded that not all citizens in the Isfahan metropolis are in the same environmental conditions and city managers and planners should pay more attention to the citizens living in the UHIs. The most important proceedings in this area would be the creation and development of parks and green belts, as well as the allocation of health-medical facilities and citizen education.
城市热岛效应（UHIs）是城市管理面临的挑战之一，尤其是在大都市中，它会影响市民的健康和福祉。本研究结合遥感技术与实地调查，系统地调查了伊朗伊斯法罕大都市城市热岛效应对市民健康的影响。为此，基于分裂窗算法，利用Landsat - 8卫星图像监测了三年期间的地表温度（LST）。然后，确定了出现城市热岛效应和城市冷岛（UCI）现象的区域，并应用一般健康问卷 - 28（GHQ - 28）从身体健康、焦虑与睡眠、社会功能以及城市热岛效应和城市冷岛效应区域的抑郁等方面评估了800名市民的健康状况。研究期间的平均地表温度为45.5±2.3°C，结果表明扎扬德河及其周边的绿化在调节环境温度和促进市民健康方面发挥了重要作用。居住在郊区的市民更容易受到城市热岛效应现象的影响，对GHQ - 28结果的统计分析表明，他们在非身体健康子量表（即焦虑与睡眠、社会功能和抑郁）方面表现出严重的显著（<0.05）反应。因此，可以得出结论，伊斯法罕大都市并非所有市民都处于相同的环境条件下，城市管理者和规划者应更加关注生活在城市热岛效应区域的市民。该领域最重要的举措将是创建和发展公园及绿化带，以及分配医疗设施和开展市民教育。
