Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

Rodriguez Diana; Urbieta Itziar R.; Velasco AngelAngel Campano-Laborda MiguelJimenez Elena

首页> 外文期刊>Building and environment >Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

【24h】

Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

机译：Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Despite the risk of transmission of SARS-CoV-2, Spanish educational centers were reopened after six months of lockdown. Ventilation was mostly adopted as a preventive measure to reduce the transmission risk of the virus. However, it could also affect indoor air quality (IAQ). Therefore, here we evaluate the ventilation conditions, COVID-19 risk, and IAQ in secondary school and university classrooms in Toledo (central Spain) from November 2020 to June 2021. Ventilation was examined by monitoring outdoor and indoor CO2 levels. CO2, occupancy and hygrothermal parameters, allowed estimating the relative transmission risk of SARS-CoV-2 (Alpha and Omicron BA.1), Hr, under different scenarios, using the web app COVID Riskairborne. Additionally, the effect of ventilation on IAQ was evaluated by measuring indoor/outdoor (I/O) concentration ratios of O3, NO2, and suspended particulate matter (PM). University classrooms, particularly the mechanically ventilated one, presented better ventilation conditions than the secondary school classrooms, as well as better thermal comfort conditions. The estimated Hr for COVID-19 ranged from intermediate (with surgical masks) to high (no masks, teacher infected). IAQ was generally good in all classrooms, particularly at the university ones, with I/O below unity, implying an outdoor origin of gaseous pollutants, while the source of PM was heterogeneous. Consequently, controlled mechanical ventilation systems are essential in educational spaces, as well as wearing well-fitting FFP2-N95 masks indoors is also highly recommended to minimize the transmission risk of COVID-19 and other airborne infectious diseases.

著录项

来源
《Building and environment》 |2022年第12期|1-13|共13页
作者
Rodriguez Diana; Urbieta Itziar R.; Velasco AngelAngel Campano-Laborda MiguelJimenez Elena;
展开▼
作者单位

Univ Seville;

UCLM;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
Classrooms; Ventilation; Indoor air quality; Hygrothermal comfort; Airborne transmission; COVID-19 infection risk;

Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

摘要

著录项

相关主题

期刊订阅