Indoor Air Quality including Respiratory Viruses

Area of Science:

• Environmental Science
• Virology
• Public Health

Background:

• Concerns about SARS-CoV-2 transmission in indoor settings necessitate robust detection methods.
• Understanding the presence of airborne viruses and their relationship with indoor air quality (IAQ) is crucial for infection control.

Purpose of the Study:

• To develop and validate a novel methodology for detecting SARS-CoV-2 and other respiratory viruses in indoor air.
• To investigate the presence of airborne viruses in an ophthalmological hospital.
• To assess the relationship between IAQ parameters and airborne viral detection.

Main Methods:

• Utilized three distinct sampling methodologies for airborne virus collection.
• Developed a new analytical process for identifying respiratory viruses.
• Monitored key IAQ parameters including CO2, CO, NO2, VOCs, HCHO, and PM.

Main Results:

• SARS-CoV-2 was not detected in any indoor air or surface samples.
• Another airborne respiratory virus (HRV/ENV) was successfully detected, validating the methodology.
• Most IAQ parameters were within acceptable limits, except for elevated VOCs and HCHO in a doctor's consultation room.

Conclusions:

• The integrated methodological approach for assessing bioaerosols and IAQ is suitable for research and control programs.
• The study highlights the importance of monitoring both airborne pathogens and IAQ for healthier indoor environments.
• While SARS-CoV-2 was not detected, the study confirms the presence of other airborne viruses and identifies potential IAQ concerns.