Tao Shuang-Cheng, Gao Shuo-Han, Xiong Xin-Zhu, Yao Jia-Lin, Deng Shun-Xi
China Academy of Transportation Sciences, Beijing 100029, China.
School of Environment Science and Engineering, Chang'an University, Xi'an 710064, China.
Huan Jing Ke Xue. 2018 Aug 8;39(8):3580-3590. doi: 10.13227/j.hjkx.201711178.
To investigate the exposure to major air pollutants of runners while running in Beijing, the concentrations of PM, CO, O, and NO were constantly monitored at typical park running areas (Tiantan Park and Olympic Sports Center), roadside running areas (Qianmen East Street and Yongding Inner Street), and a background area (Dinglin) during April, June, and October of 2016 and in January 2017. The concentration variation characteristics for the pollutants in different areas and at different times were analyzed. Using a numerical model of human respiratory exposure, 102 joggers were studied, as was the temporal-spatial variation of inhalation dose of pollutants. At typical running areas, the concentrations of CO, NO, and PM were relatively higher in winter, whereas the concentrations of O were higher in spring and summer. The concentrations of CO, NO and PM were lower in the afternoon (16:00-18:00), whereas the concentrations of O were lower in the morning (06:00-08:00) and evening (18:00-20:00). There was a linear correlation between concentrations roadside to those in nearby parks, as the concentrations of CO roadside were generally consistent with those in parks (/=1.01, =0.93), the concentrations of NO and PM roadside were higher than those in parks (/ were 0.56 and 1.19, respectively), and the concentrations of O roadside were lower than those in parks (/=0.74, =0.97). During moderate or higher pollution conditions, 92% of joggers halted outdoor activities, 62.7% chose to jog in parks, 66.7% chose to jog at night, and 64.7% of joggers had single run mileages of 10-20 km. When people chose to jog in the afternoon and evening, the inhalation of CO, NO, and PM were relatively lower, whereas the inhalation of O was higher. During spring and summer, night running after 20:00 reduced the O inhalation dose. Running roadside led to higher inhalation of CO, NO, and PM than that in parks; however, O inhalation was lower.
为调查在北京跑步的人在跑步时主要空气污染物的暴露情况，于2016年4月、6月、10月及2017年1月，在典型公园跑步区域（天坛公园和奥林匹克体育中心）、路边跑步区域（前门东大街和永定门内大街）以及一个背景区域（定陵）持续监测了PM、CO、O₃和NO₂的浓度。分析了不同区域和不同时间污染物的浓度变化特征。使用人体呼吸暴露数值模型，对102名慢跑者进行了研究，并分析了污染物吸入剂量的时空变化。在典型跑步区域，冬季CO、NO₂和PM的浓度相对较高，而春季和夏季O₃的浓度较高。下午（16:00 - 18:00）CO、NO₂和PM的浓度较低，而上午（06:00 - 08:00）和晚上（18:00 - 20:00）O₃的浓度较低。路边浓度与附近公园浓度之间存在线性相关性，路边CO浓度通常与公园一致（I = 1.01，r = 0.93），路边NO₂和PM浓度高于公园（r分别为0.56和1.19），路边O₃浓度低于公园（I = 0.74，r = 0.97）。在中度或更高污染状况下，92%的慢跑者停止户外活动，62.7%选择在公园慢跑，66.7%选择在夜间慢跑，64.7%的慢跑者单次跑步里程为10 - 20公里。当人们选择在下午和晚上慢跑时，CO、NO₂和PM的吸入量相对较低，而O₃的吸入量较高。在春季和夏季，20:00之后夜跑会降低O₃吸入剂量。在路边跑步导致CO、NO₂和PM的吸入量高于公园；然而，O₃吸入量较低。
