Is compulsory home quarantine less effective than centralized quarantine in controlling the COVID-19 outbreak? Evidence from Hong Kong DOI Creative Commons
Pengyu Zhu, Xinying Tan

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 74, P. 103222 - 103222

Published: Aug. 2, 2021

Faced with the global spread of COVID-19, Hong Kong government imposed compulsory home quarantine on all overseas arrivals, while cities in mainland China and Macau adopted a more stringent centralized approach. This study evaluates effectiveness as means pandemic control. Combining epidemiological data traditional socioeconomic meteorological from over 250 cities, we employ Synthetic Control Method (SCM) to construct counterfactual "synthetic Kong". model simulates infection trends for hypothetical situation which HK adopts measures, compares them actual numbers. Results suggest that would have been less effective than initially. However, rate under later converges estimate (0.136% vs. 0.174%), suggesting similar efficacy phase implementation. Considering its minimal reliance public resources, heightened enforcement may therefore be preferable countries limited health resources. Home alternative balances protection individual freedom, conserving making it sustainable option many cities.

Language: Английский

Indoor air quality improvement in COVID-19 pandemic: Review DOI Open Access
Nehul Agarwal, Chandan Swaroop Meena, Binju P Raj

et al.

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 70, P. 102942 - 102942

Published: April 16, 2021

Language: Английский

Citations

219
Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings DOI Open Access
Shubham Srivastava, Xingwang Zhao,

Ati Manay

et al.

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 75, P. 103408 - 103408

Published: Sept. 29, 2021

Language: Английский

Citations

129
Occupant-density-detection based energy efficient ventilation system: Prevention of infection transmission DOI Open Access
Junqi Wang, Jingjing Huang, Zhuangbo Feng

et al.

Energy and Buildings, Journal Year: 2021, Volume and Issue: 240, P. 110883 - 110883

Published: March 9, 2021

Language: Английский

Citations

124
Airborne transmission of COVID‐19 virus in enclosed spaces: An overview of research methods DOI
Xingwang Zhao, Sumei Liu, Yonggao Yin

et al.

Indoor Air, Journal Year: 2022, Volume and Issue: 32(6)

Published: June 1, 2022

Since the outbreak of COVID-19 in December 2019, severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) has spread worldwide. This study summarized transmission mechanisms and their main influencing factors, such as airflow patterns, air temperature, relative humidity, social distancing. The characteristics existing cases are providing more evidence that SARS CoV-2 can be transmitted through air. investigation reviewed probabilistic deterministic research methods, Wells–Riley equation, dose-response model, Monte-Carlo computational fluid dynamics (CFD) with Eulerian method, CFD Lagrangian experimental approach, have been used for studying airborne mechanism. equation model typically assessment average infection risk. Only combination method or these two methods obtain spatial distribution particles' concentration In contrast is suitable risk when behavior individuals highly random. Although researchers tend to use numerical mechanism COVID-19, an approach could often provide stronger prove possibility than a simple model. All all, helpful epidemic prevention control.

Language: Английский

Citations

92
Experimental study on the control effect of different ventilation systems on fine particles in a simulated hospital ward DOI Open Access
Xiangfei Kong,

Chenli Guo,

Zhang Lin

et al.

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 73, P. 103102 - 103102

Published: June 17, 2021

Language: Английский

Citations

96
A review of occupancy-based building energy and IEQ controls and its future post-COVID DOI Open Access
Prashant Anand, David Cheong, Chandra Sekhar

et al.

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 804, P. 150249 - 150249

Published: Sept. 10, 2021

Language: Английский

Citations

66
Prediction and control of aerosol transmission of SARS-CoV-2 in ventilated context: from source to receptor DOI Open Access
Chunwen Xu, Wenbing Liu,

Xilian Luo

et al.

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 76, P. 103416 - 103416

Published: Oct. 1, 2021

Language: Английский

Citations

64
Human exposure to respiratory aerosols in a ventilated room: Effects of ventilation condition, emission mode, and social distancing DOI Creative Commons
Gen Pei, Mary E. Taylor, Donghyun Rim

et al.

Sustainable Cities and Society, Journal Year: 2021, Volume and Issue: 73, P. 103090 - 103090

Published: June 15, 2021

Language: Английский

Citations

61
Retrofitting Existing Buildings to Improve Energy Performance DOI Open Access
Sunil Kumar Sharma, Swati Mohapatra, Rakesh Chandmal Sharma

et al.

Sustainability, Journal Year: 2022, Volume and Issue: 14(2), P. 666 - 666

Published: Jan. 7, 2022

Energy-efficient retrofits embrace enhancement of the building envelope through climate control strategies, employment building-integrated renewable energy technologies, and insulation for a sustainable city. Building improvements with is common approach, yet decision-making plays an important role in determining most appropriate retrofit strategy. In this paper, main objective to evaluate different strategies (RS) calibrated simulation approach. Based on performance audit monitoring, existing evaluated levels improvement potentials basic conservation measures. The considered experimentally monitored full year, monitoring data are used calibrating model. validation base model done by comparing analysis experimental investigation, good agreement found. Three based Intervention minor (RS1), Moderate (RS2), Major (RS3) analyzed juxtaposed identify optimal strategy minimizing consumption. result shows that total intensity terms percentage reduction index about 16.7% RS1, 19.87 RS2, 24.12% RS3. Hence, RS3 further simulated carbon dioxide (CO2) emissions payback investigation. It was found annual CO2 18.56%, period investment 10.6 years.

Language: Английский

Citations

61
A review on indoor airborne transmission of COVID-19– modelling and mitigation approaches DOI Creative Commons
Saeed Rayegan, Chang Shu, Justin Berquist

et al.

Journal of Building Engineering, Journal Year: 2022, Volume and Issue: 64, P. 105599 - 105599

Published: Nov. 26, 2022

In the past few years, significant efforts have been made to investigate transmission of COVID-19. This paper provides a review COVID-19 airborne modeling and mitigation strategies. The simulation models here are classified into infectious risk numerical approaches for spatiotemporal transmissions. Mathematical descriptions assumptions on which these based discussed. Input data used in previous studies assess dispersion extracted reported. Moreover, measurements performed study within indoor environments introduced support validations anticipated future studies. Transmission strategies recommended recent include modifying occupancy ventilation operations, using filters air purifiers, installing ultraviolet (UV) disinfection systems, personal protection compliance, such as wearing masks social distancing. application various building types, educational, office, public, residential, hospital, is reviewed. Recommendations works also discussed current apparent knowledge gaps covering both approaches. Our findings show that different measures were environments; however, there no conclusive work reporting their combined effects level may be achieved. further should conducted understand better balance between mitigating viral transmissions buildings energy consumption.

Language: Английский

Citations

56