Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran.
Environ Sci Pollut Res Int. 2021 Sep;28(36):50480-50488. doi: 10.1007/s11356-021-14260-3. Epub 2021 May 6.
In December 2019, all nations learnt about the emergence of a pandemic of coronavirus disease (COVID-19), induced by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is a member of the β-coronavirus group. As SARS-CoV-2 has the potentiality of leading to life-threatening respiratory failure, its transmission routes need to be characterized. Yet, the possibility of airborne transmission is still debated. This study was performed to evaluate potential hospital indoor air viral quality in order to detect SARS-COV-2. For this purpose, an impinger method was used to monitor the SARS-COV-2 virus in the air. Thus, 33 samples were collected from 8 different hospital locations. The sampling time was between 50 and 60 min with a sampling flow rate of 28 L/min. Air samples were taken from 2 to 5 m away from the patients' beds. Temperature, relative humidity, and CO concentration were 28, 37, and 438 ppm, respectively. The results indicated that air samples which were 2 to 5 m away from the patients' beds were negative for the presence of the virus. According to the obtained results, it is suggested that airborne transmission may not have much effect on this pandemic. However, as the patients with SARS-CoV-2 were hospitalized in rooms with negative air pressure, the results might have been negatively affected. Graphical abstract.
2019 年 12 月，所有国家都了解到一种由严重急性呼吸系统综合症冠状病毒 2（SARS-CoV-2）引起的冠状病毒疾病（COVID-19）大流行的出现，它是β冠状病毒群的一个成员。由于 SARS-CoV-2 有可能导致危及生命的呼吸衰竭，因此需要对其传播途径进行特征描述。然而，空气传播的可能性仍存在争议。本研究旨在评估潜在的医院室内空气病毒质量，以检测 SARS-COV-2。为此，采用冲击器法监测空气中的 SARS-COV-2 病毒。因此，从 8 个不同的医院地点收集了 33 个样本。采样时间为 50 至 60 分钟，采样流速为 28 L/min。空气样本取自离患者床 2 至 5 米的地方。温度、相对湿度和 CO 浓度分别为 28、37 和 438 ppm。结果表明，离患者床 2 至 5 米的空气样本中未检测到病毒。根据获得的结果，建议空气传播可能对这种大流行没有太大影响。然而，由于 SARS-CoV-2 患者被住院在负压病房中，结果可能受到了负面影响。图表摘要。
