class='kwd-title'>Keywords: PM, Traffic, Size di'/> Study of particle number size distributions at Azadi terminal in Tehran comparing high-traffic and no traffic area
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>MethodsX >Study of particle number size distributions at Azadi terminal in Tehran comparing high-traffic and no traffic area
【2h】

Study of particle number size distributions at Azadi terminal in Tehran comparing high-traffic and no traffic area

机译：研究德黑兰阿扎迪客运站的颗粒大小分布比较高通行和无通行区域

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

class="kwd-title">Keywords: PM, Traffic, Size distribution, Iran class="head no_bottom_margin" id="abs0010title">AbstractVehicle traffic is known as the anthropogenic aerosol source in megacities. Exposure to ambient air pollution, especially particulate matter has become the most environmental risk factor. The main aim of this study is to determine the particle number and their size distribution in Tehran at Azadi terminal (located in the West of Tehran), crossing of Nawab and Azadi streets the area with high traffic, and campus of Tehran University as an area without traffic. Particle size distribution (0.3–1 μm) was measured using a Grimm Environmental Dust Monitor and was conducted in two seasons, hot and cold (summer 2016 and winter 2016). The measurement was performed twice per month. Although the average number of particles at Azadi Terminal was more than the other two locations in both seasons but it was not significant) p > 0.05). The average number of particles larger than 0.3 μm was 286.72 ± 129.55 and 183.61 ± 86.79 cm−3 in winter and summer respectively. In relation to particles size distribution, the average number of particles larger than 0.4, 0.5, 0.65, 0.8 and 1 μm in winter and summer were 111.5 ± 120, 29.3 ± 23.7, 8.2 ± 5.8, 4 ± 3, 2 ± 1.5 and 52.5 ± 37, 14.4 ± 10.8, 6.1 ± 5, 3.8 ± 3.5, 2.3 ± 2 cm−3 respectively. In the current study the highest number of particles significantly observed in winter time in comparison to summer. In addition, had no significant difference between the number of particles at three sampling locations.
机译：<！-fig ft0-> <！-fig @ position =“ anchor” mode =文章f4-> <！-fig mode =“ anchred” f5-> <！-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> class =“ kwd-title”>关键字： PM，流量，尺寸分布，伊朗 class =“ head no_bottom_margin” id =“ abs0010title” >摘要在大城市中，汽车交通是人为气溶胶来源。暴露于环境空气污染中，尤其是颗粒物已成为最环境风险因素。这项研究的主要目的是确定位于德黑兰阿扎迪客运站（位于德黑兰西部），穿越人口稠密地区的纳瓦卜和阿扎迪街道以及德黑兰大学校园作为区域的德黑兰的颗粒数量及其尺寸分布没有交通。使用格林灰尘监测仪测量粒径分布（0.3-1μm），并在冷热两个季节（2016年夏季和2016年冬季）进行测量。每月进行两次测量。尽管在两个季节中阿扎迪终端的平均颗粒数均高于其他两个位置，但并不显着（p> 0.05）。冬季和夏季，大于0.3μm的平均颗粒数分别为286.72±±129.55和183.61±±86.79μcm -3 。关于粒径分布，冬季和夏季大于0.4、0.5、0.65、0.8和1μm的平均颗粒数分别为111.5±120、29.3±23.7、8.2±5.8、4±3、2±1.5和52.5。分别为±37、14.4±10.8、6.1±5、3.8±3.5、2.3±2 cm -3 。在当前的研究中，与夏季相比，冬季观察到的最大颗粒数量最多。另外，在三个采样位置的颗粒数量之间没有显着差异。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号