PDF(Pubmed)
Abstract：
Urban outdoor space has a very important impact on the quality of people\'s outdoor activities, which has influenced people\'s health and moods. Its influence is the result of the combined action of various factors. Thermal and air quality environment are important factors affecting the overall comfort of the urban outdoor space. At present, there are few research on interaction with thermal and air quality environment. Therefore, a meteorological measurement and questionnaire survey have been conducted in a representative open space in a campus in Xi\'an, China. The following are the research results:(1) Mean physiological equivalent temperature (MPET) is a significant factor affecting thermal sensation vote (TSV) and thermal comfort vote (TCV). PM2.5 has no significant effect on thermal comfort vote (TCV), but it is a considerable factor affecting thermal sensation vote (TSV) when 10.2°C ≤ MPET<21°C (P = 0.023 *). (2) PM2.5 is a significant factor affecting air quality vote (AQV) and breathing comfort vote (BCV).Mean physiological equivalent temperature (MPET) has no significant impact on air quality vote (AQV), but it is a considerable factor affecting breathing comfort vote (BCV) when 10.2°C ≤ MPET<21°C (P = 0.01 **). (3) Mean physiological equivalent temperature (MPET) is a significant factor affecting overall comfort vote (OCV), but PM2.5 is not. In general, When 10.2°C ≤ MPET<21°C (-0.5 < -0.37 ≤ TCV ≤ 0.12 <0.5), the interaction between thermal and PM2.5 environment is significant on thermal sensation vote (TSV) and breathing comfort vote (BCV). This study can provide experimental support for the field of multi-factor interaction, which has shown that improving the thermal environment can better breathing comfort, while reducing PM2.5 concentration can promote thermal comfort. And can also provide reference for the study of human subjective comfort in urban outdoor space in the same latitude of the world.
摘要：
城市户外空间对人们的户外活动质量有着非常重要的影响,这影响了人们的健康和情绪。其影响是各种因素综合作用的结果。热环境和空气质量环境是影响城市室外空间整体舒适度的重要因素。目前,关于与热和空气质量环境的相互作用的研究很少。因此,在西安校园的代表性开放空间中进行了气象测量和问卷调查，中国。以下是研究结果：（1）平均生理等效温度（MPET）是影响热感觉投票（TSV）和热舒适投票（TCV）的重要因素。PM2.5对热舒适投票(TCV)没有显著影响，但当10.2°C≤MPET<21°C时，它是影响热感觉投票（TSV）的重要因素（P=0.023*）。(2)PM2.5是影响空气质量投票(AQV)和呼吸安慰投票(BCV)的显著因子。平均生理等效温度(MPET)对空气质量投票(AQV)没有显著影响,但当10.2°C≤MPET<21°C时，这是影响呼吸舒适度投票（BCV）的重要因素（P=0.01**）。（3）平均生理等效温度（MPET）是影响总体舒适投票（OCV）的重要因素，但PM2.5不是。总的来说,当10.2℃≤MPET<21℃(-0.5<-0.37≤TCV≤0.12<0.5)时,在热感觉投票（TSV）和呼吸舒适投票（BCV）上，热与PM2.5环境之间的相互作用显着。本研究可为多因子相互作用领域提供实验支持,这表明改善热环境可以更好地呼吸舒适，同时降低PM2.5浓度可以促进热舒适性。同时也可为世界同纬度城市户外空间中人体主观舒适度的研究提供参考。
