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期刊信息
  • 主管单位:
  • 上海市教育委员会
  • 主办单位:
  • 上海理工大学
  • 主  编:
  • 庄松林
  • 地  址:
  • 上海市军工路516号
  • 邮政编码:
  • 200093
  • 联系电话:
  • 021-55277251
  • 电子邮件:
  • xbzrb@usst.edu.cn
  • 国际标准刊号:
  • 1007-6735
  • 国内统一刊号:
  • 31-1739/T
  • 邮发代号:
  • 4-401
  • 单  价:
  • 15.00
  • 定  价:
  • 90.00
郭杰,李雪纯,徐梦瑶,胡钧哲,黄凯.口罩对呼吸实境颗粒物的防护及风险消减研究[J].上海理工大学学报,2022,44(4):333-342.
口罩对呼吸实境颗粒物的防护及风险消减研究
Protection and risk reduction of face masks against particulate matter based on real respiratory environment
投稿时间:2022-07-02  
DOI:10.13255/j.cnki.jusst.20220702001
中文关键词:  口罩  颗粒物  过滤效率  沉积通量
英文关键词:face mask  particulate matter  filtration efficiency  deposition flux
基金项目:国家自然科学基金资助项目(42077383,41877468)
作者单位
郭杰 上海理工大学 环境与建筑学院上海 200093 
李雪纯 上海理工大学 环境与建筑学院上海 200093 
徐梦瑶 上海理工大学 环境与建筑学院上海 200093 
胡钧哲 上海理工大学 环境与建筑学院上海 200093 
黄凯 上海新金桥环保有限公司上海 201201 
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全文下载次数: 39
中文摘要:
      为了明确口罩对实际环境颗粒物的过滤防护效果,采用呼吸实境采样装置对办公室和企业车间环境进行现场分析,选用3种口罩研究口罩类型、佩戴方式、吸气速率等因素对颗粒物过滤效率和风险消减的影响。结果表明,口罩对颗粒物的过滤效率从高到低依次为:KN95口罩 > 医用口罩 > 活性炭口罩,口罩侧面泄露对口罩的防护效果具有重要影响,而吸气速率对口罩颗粒物过滤效率的影响不明显。自然佩戴口罩对车间内不同粒径颗粒物的过滤效率呈现随粒径变大而增加的趋势,佩戴KN95口罩对废塑料破碎车间粗、细颗粒物在人体呼吸系统沉积通量消减率均高于93.5%,建议工人根据车间空气状况和劳动工种合理选择不同类型的防护口罩。
英文摘要:
      In order to make clear the filtration efficiency of respirators on particulate matter (PM) based on real respiratory environment, three kinds of face masks were selected to study the effects of mask type, wearing mode, inspiratory rate on PM filtration efficiency and risk reduction. Results show that the general trend for PM filtration efficiencies of masks was KN95 mask > surgical mask > activated carbon mask. The air leakage from the gaps between the face and the masks played an important role in achieving high protection performance, while the effect of inspiratory rate on the filtration efficiency of the mask was not obvious. The filtration efficiency of wearing masks under real-life conditions for different size particles showed a tendency to increase with the particle size. More than 93.5% reduction rate for the deposition flux of coarse and fine particles in the human respiratory system in the waste plastic crushing workshop was obtained by wearing KN95 mask. It is suggested that workers can select different types of masks according to the air conditions and the work tasks in the workshop.
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