| 吕晓娟,李志浩,李杏,曾韦霖,杨攀,林巧绚,郑敬严,杜晓龙,古羽舟,赵永谦,谢润生,刘涛,林华亮,马文军.广州市中心城区不同通勤方式PM2.5暴露水平研究[J].Chinese journal of Epidemiology,2017,38(3):309-313 |
| 广州市中心城区不同通勤方式PM2.5暴露水平研究 |
| Commuting mode specific exposure to PM2.5 in urban area of Guangzhou |
| Received:September 26, 2016 |
| DOI：10.3760/cma.j.issn.0254-6450.2017.03.007 |
| KeyWord: PM2.5 步行 自行车 公交 地铁 |
| English Key Word: PM2.5 exposure Walking Bicycle Bus Subway |
| FundProject:广东省科技计划项目（2016A020223008）；广州市科技计划项目（201607010004） |
| Author Name | Affiliation | E-mail | | Lyu Xiaojuan | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China | | | Li Zhihao | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Li Xing | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Zeng Weilin | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Yang Pan | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Lin Qiaoxuan | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Zheng Jingyan | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Du Xiaolong | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Gu Yuzhou | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Zhao Yongqian | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Xie Runsheng | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Liu Tao | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Lin Hualiang | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China | | | Ma Wenjun | Environmental Health Department, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China | mwj68@gdiph.org.cn |
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| Abstract: |
| 目的 了解广州市步行、骑自行车、乘公交、乘地铁4种通勤方式大气PM2.5暴露水平。方法 于2015年1-12月，采用美国TSI公司生产的SidePak AM510个体粉尘仪在每个月第2周的周一、周三、周五、周日，每天分早（07：00-09：00）、中（11：00-13：00）、晚（17：00-19：00）3个时段，进行不同通勤方式空气动力学直径≤2.5 μm的颗粒物（PM2.5）暴露监测，每隔1 min记录1次数据。结果 步行、骑自行车、乘公交、乘地铁4种通勤方式得到的有效样本量依次为284、281、278和280个。步行、骑自行车、乘公交和乘地铁PM2.5暴露浓度M分别为38.4、38.6、23.3和24.1 μg/m3，均与同期监测点的暴露浓度呈正相关（rs>0.8，P<0.01）。4种通勤方式PM2.5暴露浓度均以夏季最低，冬季最高。考虑暴露时间和呼吸速率，4种通勤方式单程暴露量的M由高到低依次为骑自行车21.0 μg、步行20.1 μg、乘公交5.1 μg、乘地铁2.6 μg。4种通勤方式单程暴露量季节及时段的变化趋势与暴露浓度一致。结论 步行、骑自行车PM2.5的暴露浓度高于乘公交和地铁。4种通勤方式的单程暴露PM2.5量依次为骑自行车 > 步行 > 乘公交 > 乘地铁。 |
| English Abstract: |
| Objective To find the differences in PM2.5 exposure level in the context of four commuting modes (by walk, bicycle, bus and subway) in Guangzhou. Methods The PM2.5 exposure assessment was carried out from January to December 2015 in Guangzhou. PM2.5 was measured by using SidePak individual dust meter (AM510, TSI Inc. USA) with time interval of 1 minute. Our measurement was taken on Monday, Wednesday, Friday and Sunday in the second week of each month and the samples were collected in the morning (07:00-09:00), afternoon (11:00-13:00) and evening (17:00-19:00). Results A total of 284 air samples during walking, 281 air samples during bicycle riding, 278 air samples in bus, and 280 air samples in subway were collected. The median PM2.5 concentrations exposed during walking, during bicycle riding, in bus and in subway were 38.4, 38.6,23.3 and 24.1 μg/m3, respectively, which were positive correlated with exposure concentration in fixed surveillance sites. The exposure level was lowest in summer, and highest in winter. The median of one-way exposure level to PM2.5 from high to low were as follows:21.0 μg for bicycle riding, 20.1 μg for walking, 5.1 μg for taking bus and 2.6 μg for taking subway. The season and time specific one-way exposure levels to PM2.5 of four commuting modes were consistent. Conclusions The exposure level to PM2.5 was obviously higher during walking and bicycle riding than that in bus and subway. The exposure level to PM2.5 during walking was higher than that during bicycle riding, in bus and in subway. |
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