雾霾空气中细菌特征及对健康的潜在影响
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  • 英文篇名:Bacterial characteristics in atmospheric haze and potential impacts on human health
  • 作者:甄泉 ; 方治国 ; 王雅晴 ; 欧阳志云
  • 英文作者:ZHEN Quan;FANG Zhiguo;WANG Yaqing;OUYANG Zhiyun;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences;University of Chinese Academy of Sciences;School of Public Health, Bengbu Medical College;School of Environmental Science and Engineering, Zhejiang Gongshang University;
  • 关键词:雾霾 ; 空气细菌 ; 群落结构 ; 病原细菌 ; 健康风险
  • 英文关键词:haze;;airborne bacteria;;community structure;;pathogenic bacteria;;health risks
  • 中文刊名:STXB
  • 英文刊名:Acta Ecologica Sinica
  • 机构:中国科学院生态环境研究中心城市与区域生态国家重点实验室;中国科学院大学;蚌埠医学院公共卫生学院;浙江工商大学环境科学与工程学院;
  • 出版日期:2018-12-21 16:37
  • 出版单位:生态学报
  • 年:2019
  • 期:v.39
  • 基金:国家自然科学基金重点项目(71533005);; 浙江省自然科学基金项目(LY17D050006)
  • 语种:中文;
  • 页:STXB201906038
  • 页数:11
  • CN:06
  • ISSN:11-2031/Q
  • 分类号:371-381
摘要
论文从群落结构、浓度变化及粒径分布的角度论述了雾霾天气对空气细菌特征的影响,并结合了雾霾天气相关疾病的发病率,综合评价了雾霾天气空气病原菌导致的人群潜在健康风险的变化,最后提出了以前研究存在的不足及未来的发展趋势。综合研究结果,雾霾天气对空气细菌群落结构、浓度变化及粒径分布的影响,研究人员在不同城市得出的研究结果不同,可能由样点的时空环境、气象因素、雾霾程度及采集、检验、鉴定空气细菌方法等多种因素的差异引起。雾霾空气中已发现病原细菌均为条件致病菌,在空气中含量很低,但雾霾天气下部分病原菌的相对丰度增加,致病力会显著增强。此外,高浓度的细颗粒物和化学污染物可损伤皮肤黏膜屏障,打破呼吸道和皮肤的微生态平衡,为病原菌侵入创造较好的机会。两者的协同作用,显著增加了雾霾天气空气中病原菌的健康风险。
        This study explored the impacts of atmospheric haze on airborne bacteria in terms of bacterial community structure, as well as concentrations and size distributions. We evaluated changes in the potential risks to human health caused by airborne pathogens, based on the morbidity of atmospheric haze-related diseases. Finally, we addressed the shortcomings of previous studies and proposed future trends for related research. The dynamics of bacterial community structure, and concentration and size distribution of bacterial communities in atmospheric haze—on which domestic studies have focused—have not shown consistent patterns to date. These uncertainties may be influenced by collection and detection methods, spatial and temporal disparities, meteorological factors, haze levels, etc. Pathogenic bacteria found on hazy days were opportunistic pathogens with low concentrations. However, the relative abundance and virulence of some bacterial species could significantly increase under hazy conditions. In addition, the high concentration of fine particulate matter with chemical pollutants could damage the skin or the mucous membrane barrier, break the micro-ecological balance of the respiratory tract and skin, and create opportunities for pathogen invasion. The synergistic effects of particulate matter and chemical pollutants have significantly contributed to the health risks from pathogenic bacteria in atmospheric haze.
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