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Investigation of on-road fine particulate matter exposure concentration and its inhalation dosage levels in an urban area

机译：城市地区道路上细颗粒物质暴露浓度及其吸入剂量的研究

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This study aims to assess, map, and identify hotspots of on-road fine particulate matter (PM2.5) exposure concentration in a future smart city (Vellore, India). About 22 km of major roads are considered in Vellore city and categorized as four routes viz., stop and go (route-1), low public transport (route-2), outer road (route-3), and continuous traffic (route-4). Mobile monitoring is adopted for PM2.5 sampling during morning and evening time of weekdays and weekends using the portable aerosol monitor. Further, mobile monitoring data is used for estimating the PM2.5 inhalation dosage experienced by male, female, and children. Results showed that route-4 recorded the highest mean PM2.5 exposure concentration during weekday morning (101.80 +/- 33.10 mu g m(-3)) and weekend morning (119.88 +/- 41.05 mu g m(-3)) whereas route-2 and route-1 has the highest concentration in weekday evening (101.95 +/- 47.73 mu g m (-3)) and weekend evening (114.49 +/- 35.95 mu g m (-3)), respectively. PM2.5 exposure concentration map is created, and major hotspots are identified near road intersections. The weekend morning of route-4 is found with the highest mean inhalation dosage of 1.07, 0.77 and 0.75 mu g min (-1) in male, female, and children, respectively. Route-3 registered lowest inhalation dosages among all routes.
机译：本研究旨在在未来的智能城市（印度Vellore）中的道路上细颗粒物质（PM2.5）暴露浓度的评估，地图和识别热点。在Vellore City中约有22公里的主要道路被审议，分为四个路线，即停止和去（Route-1），低公共交通工具（Route-2），外部道路（Route-3）和连续交通（路线-4）。在使用便携式气溶胶显示器的早晨和晚间时间和周末采用移动监控，采用PM2.5采样。此外，移动监测数据用于估计男性，女性和儿童经历的PM2.5吸入剂量。结果表明，在平日早晨（101.80 +/- 33.10 mm（-3））和周末早上（119.88 +/- 41.05 mm gm（-3）），而路线 - 罗威-4录制了最高的平均PM2.5暴露浓度2和Route-1在平日晚上具有最高的浓度（101.95 +/- 47.73 mu gm（-3））和周末晚上（114.49 +/- 35.95 mg（-3））。 PM2.5产生PM2.5曝光浓度图，主要热点在公路交叉口附近被识别。 Route-4周末早晨发现，最高的平均吸入剂量为1.07,0.77和0.75 mm m min（-1），分别为男性，女性和儿童。路线-3在所有路线中注册最低吸入剂量。

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