中华预防医学杂志
中華預防醫學雜誌
중화예방의학잡지
CHINESE JOURNAL OF
2012年
1期
67-69
,共3页
李娜%温占波%杨文慧%王洁%李劲松%胡凌飞%董晓凯%刘克洋%曹杰
李娜%溫佔波%楊文慧%王潔%李勁鬆%鬍凌飛%董曉凱%劉剋洋%曹傑
리나%온점파%양문혜%왕길%리경송%호릉비%동효개%류극양%조걸
防护服%评价研究%Phi-X174噬菌体%病毒气溶胶
防護服%評價研究%Phi-X174噬菌體%病毒氣溶膠
방호복%평개연구%Phi-X174서균체%병독기용효
Protective clothing%Evaluation studies%Phage Phi-X174%Viral aerosol
目的 评价某种正压生物防护服对病毒气溶胶的防护效果.方法 制备Phi-X174噬菌体悬液,在气溶胶密闭舱室内发生Phi-X174噬菌体气溶胶,应用空气动力学粒子分析仪检测粒子直径,在高送风档和低送风档条件下,调节气溶胶密闭舱室内的湿度,用安德森六级采样器采样,通过计数噬菌体噬斑数评价该正压生物防护服对病毒气溶胶的防护效率.结果 Phi-X174噬菌体气溶胶粒子质量中值直径约为0.922 μm,气溶胶粒子本底浓度＞2.0×104个/m3,在不同的测试条件下,该正压生物防护服内病毒气溶胶浓度为0 ～21PFU/m3,对Phi-X174噬菌体气溶胶粒子防护效率均＞99.9％,送风量(P=0.84)、环境湿度(P=0.33)以及采样时间(P=0.07)对正压防护服防护效率的影响无统计学意义.结论 该正压生物防护服对Phi-X174噬菌体气溶胶的防护效果较好.
目的 評價某種正壓生物防護服對病毒氣溶膠的防護效果.方法 製備Phi-X174噬菌體懸液,在氣溶膠密閉艙室內髮生Phi-X174噬菌體氣溶膠,應用空氣動力學粒子分析儀檢測粒子直徑,在高送風檔和低送風檔條件下,調節氣溶膠密閉艙室內的濕度,用安德森六級採樣器採樣,通過計數噬菌體噬斑數評價該正壓生物防護服對病毒氣溶膠的防護效率.結果 Phi-X174噬菌體氣溶膠粒子質量中值直徑約為0.922 μm,氣溶膠粒子本底濃度＞2.0×104箇/m3,在不同的測試條件下,該正壓生物防護服內病毒氣溶膠濃度為0 ～21PFU/m3,對Phi-X174噬菌體氣溶膠粒子防護效率均＞99.9％,送風量(P=0.84)、環境濕度(P=0.33)以及採樣時間(P=0.07)對正壓防護服防護效率的影響無統計學意義.結論 該正壓生物防護服對Phi-X174噬菌體氣溶膠的防護效果較好.
목적 평개모충정압생물방호복대병독기용효적방호효과.방법 제비Phi-X174서균체현액,재기용효밀폐창실내발생Phi-X174서균체기용효,응용공기동역학입자분석의검측입자직경,재고송풍당화저송풍당조건하,조절기용효밀폐창실내적습도,용안덕삼륙급채양기채양,통과계수서균체서반수평개해정압생물방호복대병독기용효적방호효솔.결과 Phi-X174서균체기용효입자질량중치직경약위0.922 μm,기용효입자본저농도＞2.0×104개/m3,재불동적측시조건하,해정압생물방호복내병독기용효농도위0 ～21PFU/m3,대Phi-X174서균체기용효입자방호효솔균＞99.9％,송풍량(P=0.84)、배경습도(P=0.33)이급채양시간(P=0.07)대정압방호복방호효솔적영향무통계학의의.결론 해정압생물방호복대Phi-X174서균체기용효적방호효과교호.
Objective To evaluate the protective performance of a positive pressure bio-protective clothing against viral aerosol.Methods The suspension of indicating virus phage Phi-X174 was made for viral aerosol generating in a hermetic cabin.The diameter of viral aerosol particles were measured with a aerodynamics size analyzer.By adjusting the inner humidity of the cabin,the protective efficiency of the positive pressure bio-protective clothing against viral aerosol in high and low windshield conditions was determined with Andersen six-stage air sampler sampling and plage forming unit ( PFU ) counting,respectively.Results The mass median diameter of Phage Phi-X174 aerosol particles was about 0.922 μm and the background concentration is beyond 2 × 104 particles/m3.The protective efficiency of the clothing against phage Phi-X174 aerosol particles was above 99.9％ under different test conditions with the range of viral aerosol concentration between 0 - 23 PFU/m3.Airflow ( P =0.84 ),environment humidity conditions (P=0.33 ) and sampling time (P=0.07 ) did not affect the protective efficiency statistically.Conclusion The positive pressure bio-protective clothing provided a relatively high efficiency against phage Phi-X174 aerosol regardless of airflow rate,environment humidity and sampling time.
