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Eighty-five measurement campaigns were performed repeatedly to compare the concentration variation profiles along two intra-urban
roads—one with open configuration and the other with street canyon effect. Fixed-effects panel data analysis was applied for
formulating a model to express the PM10 concentrations along intra-urban roads in terms of parameters like nearby central monitoring data, traffic counts and meteorological
conditions with an objective to analyze the PM10 concentration variation patterns along the two roads. Our findings reveal that traffic intensity and metrological conditions
exert influence on concentration variation for both types of road configurations while wind velocity only affect the pollutants
removal effectiveness of open road configuration. Further analysis unveils that the PM10 concentration distribution profiles within a compact city environment are not always uniform and are dependent on the road
configuration. Considerable PM10 concentration differences were observed along the street canyon, and 70% of their variations are attributed to variations
in their road aspect ratios. By contrast, no significant concentration difference is observed at open road configurations. 相似文献
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