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首页> 外文期刊>Atmospheric environment >Traffic-related air pollution in the community of San Ysidro, CA, in relation to northbound vehicle wait times at the US-Mexico border Port of Entry
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Traffic-related air pollution in the community of San Ysidro, CA, in relation to northbound vehicle wait times at the US-Mexico border Port of Entry

机译:加利福尼亚州圣伊西德罗社区与交通有关的空气污染,与在美墨边境入境口岸的北行车辆等待时间有关

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摘要

The San Diego/Tijuana US-Mexico border crossing at the San Ysidro Port of Entry (POE) is the world's busiest international land border crossing (GSA, 2013). San Ysidro, California, is the US community immediately adjacent to the border crossing. More than 90% of San Ysidro residents are Hispanic, and the average household income is less than 60% of the San Diego regional average. This study investigated the San Ysidro POE as a source of traffic-related air pollutants in San Ysidro, especially in relation to wind direction and northbound vehicle wait times. The pollutants ultrafine paniculate matter (UFP), black carbon (BC), and paniculate matter <2.5 μm in diameter (PM_(2.5)) were periodically sampled through the course of 2010 at four rooftop locations: one commercial establishment near the POE, two elementary schools in San Ysidro, and a coastal estuary reference site. Weather data from two nearby sites and northbound border wait times were also collected. Results indicate consistently higher daytime BC and UFP concentrations at the measurement sites near the POE. Pollution concentrations were higher during low wind speeds or when wind was blowing from the POE towards San Ysidro. In February, March and November measurements, black carbon pollution appeared to be significantly positively associated with the POE northbound wait times when the wind direction was blowing from the POE towards San Ysidro or during low wind speeds, but not when the wind direction was from the westorthwest towards the POE. This pilot study is the first to investigate the potential effect of the POE, especially the long northbound traffic delays, on the nearby community of San Ysidro. Disparities in traffic exposures are an environmental justice issue and this should be taken into account during planning and operation of POEs.
机译:位于圣伊西德罗入境口岸(POE)的圣地亚哥/蒂华纳美国-墨西哥边境过境点是世界上最繁忙的国际陆地边境过境点(GSA,2013)。加利福尼亚州圣伊西德罗(San Ysidro)是紧接边境口岸的美国社区。圣伊西德罗(San Ysidro)居民中超过90%是西班牙裔,平均家庭收入不到圣地亚哥地区平均水平的60%。这项研究调查了圣伊西德罗POE作为圣伊西德罗交通相关空气污染物的来源,尤其是在风向和北行车辆等待时间方面。污染物的超细颗粒物(UFP),黑碳(BC)和直径小于2.5μm的颗粒物(PM_(2.5))在2010年期间定期在四个屋顶位置进行采样:一个靠近POE的商业机构,两个圣伊西德罗的小学和沿海河口参考站点。还收集了来自附近两个站点的天气数据和北行边界等待时间。结果表明,POE附近测量点的白天BC和UFP浓度始终较高。在低风速或风从POE吹向San Ysidro时,污染浓度较高。在2月,3月和11月的测量中,当风向从POE吹向圣伊西德罗时或在低风速时,黑碳污染似乎与POE北向等待时间呈显着正相关,而在风向是从POE向北的等待时间时则不然。西/西北走向POE。这项先导研究是第一个调查POE可能对附近的San Ysidro社区产生潜在影响的方法,尤其是北向交通延误的可能性。交通事故中的差异是一个环境正义问题,在POE的规划和运营过程中应考虑到这一点。

著录项

  • 来源
    《Atmospheric environment》 |2014年第5期|353-361|共9页
  • 作者单位

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA,San Diego State University, 5500 Campanile Dr., San Diego, CA 92182-4162, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Casa Familiar, San Ysidro, CA USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA,San Diego Prevention Research Center, San Diego, CA, USA;

    Graduate School of Public Health, San Diego State University, San Diego, CA, USA,School of Public Health, University of Washington, Washington, CA, USA;

    San Diego Prevention Research Center, San Diego, CA, USA;

    Molina Center for Energy and the Environment, La Jolla, CA, USA;

    Molina Center for Energy and the Environment, La Jolla, CA, USA,Massachusetts Institute of Technology, Cambridge, MA, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    US-Mexico border; Port of Entry; Wait times; Traffic pollution; Black carbon; Ultrafine particles; Particulate matter; San Ysidro; CA;

    机译:美墨边境;进口港;等待时间;交通污染;黑炭;超细颗粒;颗粒物;圣伊西德罗认证机构;

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