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Impacts of Aviation Emissions on Near-Airport Residential Air Quality.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-07-08 , DOI: 10.1021/acs.est.0c01859 Neelakshi Hudda 1 , Liam W Durant 2 , Scott A Fruin 3 , John L Durant 1
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-07-08 , DOI: 10.1021/acs.est.0c01859 Neelakshi Hudda 1 , Liam W Durant 2 , Scott A Fruin 3 , John L Durant 1
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Impacts of aviation emissions on air quality in and around residences near airports remain underexamined. We measured gases (CO, CO2, NO, and NO2) and particles (black carbon, particle-bound aromatic hydrocarbons, fine particulate matter (PM2.5), and ultrafine particles (reported using particle number concentrations (PNC) as a proxy)) continuously for 1 month at a residence near the Logan International Airport, Boston. The residence was located under a flight trajectory of the most utilized runway configuration. We found that when the residence was downwind of the airport, the concentrations of all gaseous and particulate pollutants (except PM2.5) were 1.1- to 4.8-fold higher than when the residence was not downwind of the airport. Controlling for runway usage and meteorology, the impacts were highest during overhead landing operations: average PNC was 7.5-fold higher from overhead landings versus takeoffs on the closest runway. Infiltration of aviation-origin emissions resulted in indoor PNC that were comparable to ambient concentrations measured locally on roadways and near highways. In addition, ambient NO2 concentrations at the residence exceeded those measured at regulatory monitoring sites in the area including near-road monitors. Our results highlight the need for further characterization of outdoor and indoor impacts of aviation emissions at the neighborhood scale to more accurately estimate residential exposures.
中文翻译：
航空排放对近机场居民空气质量的影响。
航空排放对机场附近住宅及其周围地区空气质量的影响仍未得到充分研究。我们测量了气体（CO，CO 2，NO和NO 2）和颗粒（黑碳，与颗粒结合的芳烃，细颗粒物（PM 2.5）和超细颗粒（使用颗粒数浓度（PNC）进行报告） ））在波士顿洛根国际机场附近的住所连续1个月。该住所位于飞机跑道配置最充分的飞行轨迹下。我们发现，当住宅在机场顺风时，所有气态和颗粒污染物的浓度（PM 2.5除外））比住所不在机场顺风时高1.1至4.8倍。控制跑道的使用和气象，对高架着陆操作的影响最大：相对于最近的跑道，高架着陆的平均PNC比起降高7.5倍。航空排放物的渗透导致室内PNC的水平与当地在公路和高速公路附近测得的环境浓度相当。此外，居住区的环境NO 2浓度超过了该地区包括近路监测仪在内的监管监测点所测得的浓度。我们的结果突出表明，有必要在邻域范围内进一步表征航空排放物对室内和室外的影响，以更准确地估算住宅的暴露程度。
更新日期：2020-07-21
中文翻译：
航空排放对近机场居民空气质量的影响。
航空排放对机场附近住宅及其周围地区空气质量的影响仍未得到充分研究。我们测量了气体（CO，CO 2，NO和NO 2）和颗粒（黑碳，与颗粒结合的芳烃，细颗粒物（PM 2.5）和超细颗粒（使用颗粒数浓度（PNC）进行报告） ））在波士顿洛根国际机场附近的住所连续1个月。该住所位于飞机跑道配置最充分的飞行轨迹下。我们发现，当住宅在机场顺风时，所有气态和颗粒污染物的浓度（PM 2.5除外））比住所不在机场顺风时高1.1至4.8倍。控制跑道的使用和气象，对高架着陆操作的影响最大：相对于最近的跑道，高架着陆的平均PNC比起降高7.5倍。航空排放物的渗透导致室内PNC的水平与当地在公路和高速公路附近测得的环境浓度相当。此外，居住区的环境NO 2浓度超过了该地区包括近路监测仪在内的监管监测点所测得的浓度。我们的结果突出表明，有必要在邻域范围内进一步表征航空排放物对室内和室外的影响，以更准确地估算住宅的暴露程度。
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