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Effect of air pollution on the total bacteria and pathogenic bacteria in different sizes of particulate matter

机译:空气污染对不同大小颗粒物总细菌和致病菌的影响

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摘要

AbstractIn recent years, air pollution events have occurred frequently in China during the winter. Most studies have focused on the physical and chemical composition of polluted air. Some studies have examined the bacterial bioaerosols both indoors and outdoors. But few studies have focused on the relationship between air pollution and bacteria, especially pathogenic bacteria. Airborne PM samples with different diameters and different air quality index values were collected in Hangzhou, China from December 2014 to January 2015. High-throughput sequencing of 16S rRNA was used to categorize the airborne bacteria. Based on the NCBI database, the “Human Pathogen Database” was established, which is related to human health. Among all the PM samples, the diversity and concentration of total bacteria were lowest in the moderately or heavily polluted air. However, in the PM2.5 and PM10 samples, the relative abundances of pathogenic bacteria were highest in the heavily and moderately polluted air respectively. Considering the PM samples with different particle sizes, the diversities of total bacteria and the proportion of pathogenic bacteria in the PM10 samples were different from those in the PM2.5 and TSP samples. The composition of PM samples with different sizes range may be responsible for the variances. The relative humidity, carbon monoxide and ozone concentrations were the main factors, which affected the diversity of total bacteria and the proportion of pathogenic bacteria. Among the different environmental samples, the compositions of the total bacteria were very similar in all the airborne PM samples, but different from those in the water, surface soil, and ground dust samples. Which may be attributed to that the long-distance transport of the airflow may influence the composition of the airborne bacteria. This study of the pathogenic bacteria in airborne PM samples can provide a reference for environmental and public health researchers.Graphical abstractDisplay OmittedHighlightsTotal bacteria and pathogenic bacteria in airborne particulate matter were studied.Air quality levels had a influence on total bacteria and pathogenic bacteria.Particle sizes effected the distribution of total bacteria and pathogenic bacteria.Relative humidity, carbon monoxide and ozone were the main factors.The potential source environments of total bacteria were investigated.Different concentrations and sizes of particulate matter, and various environmental factors were related to the variance of total bacteria and pathogenic bacteria.
机译: 摘要 近年来,冬季期间,中国空气污染事件频繁发生。大多数研究集中在污染空气的物理和化学组成上。一些研究已经检查了室内和室外的细菌生物气溶胶。但是很少有研究集中在空气污染和细菌之间的关系,尤其是致病细菌。 2014年12月至2015年1月,在中国杭州市收集了不同直径和不同空气质量指标值的空气中PM样品。采用16S rRNA的高通量测序对空气中的细菌进行分类。在NCBI数据库的基础上,建立了与人类健康有关的“人类病原体数据库”。在所有PM样品中,中度或重度污染空气中总细菌的多样性和浓度最低。然而,在PM2.5和PM10样品中,致病细菌的相对丰度分别在重度和中度污染的空气中最高。考虑到不同粒径的PM样品,PM10样品中总细菌的多样性和致病菌的比例与PM2.5和TSP样品中的不同。不同大小范围的PM样品的成分可能是造成差异的原因。相对湿度,一氧化碳和臭氧浓度是影响总细菌多样性和致病菌比例的主要因素。在不同的环境样品中,所有空气中的PM样品中细菌总数均非常相似,但与水,表层土壤和地面粉尘样品中的细菌完全不同。这可能归因于气流的长距离传输可能会影响空气传播细菌的成分。空气中PM样品中致病菌的研究为环境和公共卫生研究人员提供了参考。 图形摘要 显示省略 突出显示 全部细菌和致病菌飞机上的细菌 空气质量水平对总细菌和致病细菌有影响。 颗粒大小影响总细菌和致病菌的分布。 主要是相对湿度,一氧化碳和臭氧因素。 调查了总细菌的潜在来源环境。 颗粒物的浓度和大小以及各种环境因素都与总细菌和致病菌的变化有关。< / ce:simple-para>

著录项

  • 来源
    《Environmental pollution》 |2018年第2期|483-493|共11页
  • 作者单位

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    The Center of Analysis and Measurement, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University;

    Department of Environmental Engineering, Zhejiang University,Research Center for Air Pollution and Health, Zhejiang University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pathogenic bacteria; Total bacteria; Airborne particulate matter; Air quality index;

    机译:病原菌;细菌总数;空气中颗粒物;空气质量指数;
  • 入库时间 2022-08-17 13:25:41

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