An overview of ventilation and indoor air quality in selected wards of the Children's Medical Center
Discuss this preprint
Start a discussion What are Sciety discussions?Listed in
This article is not in any list yet, why not save it to one of your lists.Abstract
In this study, number and concentrations of PM 2.5 , PM 10 , and PM 1 in indoor and outdoor air, temperature, humidity, and CO 2 concentration, and air exchange per hour were examind in selected wards of the Children's Medical Center in Tehran city. To measure number and concentrations of indoor and outdoor particles and air velocity, the PLANTOWER PMS 5003 sensor and KIMO VT 115 (Hotwire thermo-anemometer) was used, respectively. Furthermore To measure temperature, humidity, and carbon dioxide concentration, the Testo 440 device was used. The average air exchange rate per hour in selected wards of the Children's Medical Center during the warm season (April to August) and the cold season (November to December) in 2024 was 24 and 12 times per hour, respectively. The average concentration of PM 2.5 and PM 10 in the cold season (November to December) and the warm season (April to August) at the Children's Medical Center was 32 µg/m³ and 22 µg/m³ and 39 µg/m³ and 28 µg/m³, respectively. The average CO₂ concentration in the Children's Medical Center during the warm season was 270 ppm, which is lower compared to the cold season (390 ppm). Installing and upgrading mechanical ventilation systems using HEPA filters in all wards, especially sensitive areas like NICU, CICU, and operating rooms, can significantly impact the air quality within the wards.
