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Effect of reduced traffic density on characteristics of particulate matter over Delhi

机译:减少交通密度对德里颗粒物质特征的影响

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摘要

Road rationing policy, implemented in Delhi from 1 to 15 January 2016, reduced the traffic density. This particular event serves an opportunity to study the effect of reduced traffic density over particulate matter (PM) characteristics. The mean PM2.5 and black carbon (BC) mass concentration before, during and after the event were observed as 163.51 mu g/m(3) and 14.01 mu g/m(3), 186.98 mu g/m(3) and 19.87 mu g/m(3), 197.45 mu g/m(3) and 17.79 mu g/m(3) respectively. During the first week (1-7 January 2016), high PM2.5 mass concentration was observed while in the second week (8-15 January 2016), the concentration was relatively low. The concentration of elements like P, Cu, As and Pb was observed to be minimum during the event.
机译:在2016年1月1日至15日在德里实施的道路配给政策降低了交通密度。 这种特殊事件有机会研究减少交通密度对颗粒物质(PM)特征的影响。 在事件之前,期间和之后观察到在事件期间和之后的平均PM2.5和黑碳(BC)质量浓度为163.51μg/ m(3)和14.01μg/ m(3),186.98μg/ m(3)和 19.87μg/ m(3),197.45μg/ m(3)和17.79μg/ m(3)。 在第一周(2016年1月1日至7日),在第二周(2016年1月8日至15日),浓度相对较低,观察到高PM2.5质量浓度。 观察到P,Cu,AS和Pb等元素的浓度在发生期间最小。

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