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首页> 外文期刊>The Science of the Total Environment >Temporal variations of PM_(2.5) in the ambient air of a suburban site in Athens, Greece
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Temporal variations of PM_(2.5) in the ambient air of a suburban site in Athens, Greece

机译：希腊雅典郊区的环境空气中PM_（2.5）的时间变化

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摘要

Twenty-three hour measurements of PM_(2.5) particulate matter have been carried out during the period between the 1st April and the 13th November 2003 in a suburban area of Athens. The monitoring site was located in the National Research Center "DEMOKRITOS", on the foot of Hemittos Mountain and about 12 km away from the center of Athens. The site covers an area of 600 acres in a forest of pine trees close enough to the newly constructed Hemittos Mountain peripheral highway. PM_(2.5) samples were collected on 47 mm filters, with the use of low volume gravimetric samplers while a meteorological station recorded meteorological data 6 m above the ground, nearby the sampling instrumentation. The daily average PM_(2.5) concentration reached 21.1 μg m~(-3) and all measurements were below U.S. Environmental Pollution Agency daily limit (65 μg m~(-3)). A regression analysis was used to investigate the relationship among PM_(2.5) concentrations and meteorological parameters. Additionally, PM_(2.5) mass concentrations were correlated with other inorganic gaseous pollutants (O_3, NO, NO_2, SO_2) while weekly and seasonal PM_(2.5) variations were also investigated.
机译：在2003年4月1日至11月13日期间，在雅典郊区对PM_（2.5）颗粒物进行了23个小时的测量。监测地点位于国家研究中心“ DEMOKRITOS”，在海米托斯山脚下，距雅典市中心约12公里。该场地占地600英亩，周围是松树林，与新建的Hemittos Mountain外围高速公路相距不远。 PM_（2.5）样品使用小体积重量采样器在47 mm过滤器上收集，而气象站则在靠近采样仪器的地面上方6 m处记录了气象数据。日均PM_（2.5）浓度达到21.1μgm〜（-3），所有测量值均低于美国环境污染管理局的每日限值（65μgm〜（-3））。利用回归分析研究了PM_（2.5）浓度与气象参数之间的关系。此外，PM_（2.5）的质量浓度与其他无机气体污染物（O_3，NO，NO_2，SO_2）相关，同时还调查了每周和季节性的PM_（2.5）变化。

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