scholarly journals A study on the evaluation of indoor air quality in small scale apartment house in South Korea

2019 ◽  
Vol 609 ◽  
pp. 042030
Author(s):  
Tae-woo Kim ◽  
Hyun-tae Kim
Keyword(s):  
Air Quality ◽  
South Korea ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Small Scale ◽  
Apartment House

scholarly journals Evaluation of Effects of the Humidity Level-Based Auto-Controlled Centralized Exhaust Ventilation Systems on Thermal Comfort of Multi-Family Residential Buildings in South Korea

2019 ◽  
Vol 11 (17) ◽  
pp. 4791
Author(s):  
Kwag ◽  
Park ◽  
Kim ◽  
Kim
Keyword(s):  
Air Quality ◽  
South Korea ◽  
Thermal Comfort ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Residential Buildings ◽  
Humidity Level ◽  
Exhaust Ventilation ◽  
Air Tightness ◽  
Ventilation Systems

Building air-tightness has been increased to make energy efficient buildings. However, various indoor air quality issues can be caused by high building air-tightness because it allows low air and moisture transmission through building envelop. In order to solve and prevent these issues, mechanical ventilation systems can be used to control the indoor humidity level. The purpose of this paper is to evaluate the performances of the Relative Humidity (RH)-sensor based auto-controlled centralized exhaust ventilation systems to manage indoor air quality and thermal comfort of multi-family residential buildings in South Korea. A series of field tests were performed for different target zones and for various moisture source scenarios. As a result, it was found that the auto-controlled centralized exhaust ventilation systems were able to control indoor air quality and to maintain the zones thermal comfort faster than the baseline cases that did not operate exhaust vents. The results presented in this paper can show the potential and the feasibility of the auto-controlled centralized exhaust ventilation systems for multi-family residential buildings in South Korea. It is expected that the results presented in this paper would be useful for building owners, engineers, and architects when designing building systems.

The Assessment of Survey on the Indoor Air Quality of Children Care Centers in South Korea

Epidemiology ◽  
2011 ◽  
Vol 22 ◽  
pp. S46
Author(s):  
Young Rim Jung ◽  
Youn Hee Oh ◽  
Hyun Hee Park ◽  
Won Choi ◽  
Yun Yong Joo ◽  
...  
Keyword(s):  
Air Quality ◽  
South Korea ◽  
Indoor Air Quality ◽  
Indoor Air

Determining the Ventilation Rate inside an Apartment House on the Basis of Measured Carbon Dioxide Concentrations – Case Study

2017 ◽  
Author(s):  
Peter Kapalo ◽  
Silvia Vilčeková ◽  
Florin Domnita ◽  
Ciprian Bacotiu ◽  
Orest Voznyak
Keyword(s):  
Carbon Dioxide ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Flow Rate ◽  
Indoor Air ◽  
Residential Buildings ◽  
Air Flow ◽  
Air Flow Rate ◽  
Apartment House ◽  
Carbon Dioxide Concentrations

In the construction process of modern residential buildings the aim is to achieve maximum comfort within minimum energy consumption. One of the ways to achieve this requirement is the accurate determination of the volumetric air flow rate necessary to ensure the required indoor air quality. The aim of the paper is to present a methodology for determination the volumetric air flow rate on the basis of the results obtained from experimental measurements of carbon dioxide concentrations, which were carried out inside an apartment house lived by a standard family. Based on the measured values, the mass flow rate release of carbon dioxide was calculated. Consequently, the volumetric air flow rate was calculated in two situations, during the day and during the night. The main goal of the paper is to determine the required fresh air flow rate in an occupied room, based on carbon dioxide concentration measurement, in order to maintain a comfortable level of indoor air quality. The calculated air flow rate should optimize a future investment in ventilation equipment in order to choose the proper air handling unit with low operating costs. The aim is not only to improve the energy efficiency of the ventilation system, but also to ensure a healthy indoor environment. Based on the presented research it can be stated that during the sleeping of four family members there is necessary to ensure the fresh air flow rate of 104 m3 per hour.

scholarly journals Effect of Air Purification Systems on Particulate Matter and Airborne Bacteria in Public Buses

Atmosphere ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 55
Author(s):  
Jae Jung Lee ◽  
Hyemin Hwang ◽  
Suk Chan Hong ◽  
Jae Young Lee
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
South Korea ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
High Efficiency ◽  
Transport Systems ◽  
Air Purification ◽  
Airborne Bacteria ◽  
Pm2.5 And Pm10

The indoor air quality in public transport systems is a major concern in South Korea. Within this context, we investigated the effect of air purification systems on the indoor air quality of intercity buses, one of the most popular transport options in South Korea. Air purifiers were custom designed and equipped with high-efficiency particulate air (HEPA) filters to remove particulate matter and ultraviolet light-emitting diodes (UV-LEDs) to remove airborne bacteria. To investigate the effectiveness of the air purification systems, we compared concentrations of particulate matter (PM2.5 and PM10), airborne bacteria, and carbon dioxide (CO2) in six buses (three with air purification systems and three without) along three bus routes (BUS1, BUS2, BUS3) in Gyeonggi Province, South Korea, between 6 April and 4 May 2021. Compared to the buses without air purification, those with air purification systems showed 34–60% and 25–61% lower average concentrations of PM2.5 and PM10, respectively. In addition, buses with air purification systems had 24–78% lower average airborne bacteria concentrations compared to those without air purification systems (when measured after 30 min of initial purification).

scholarly journals Assessment of VOCs, PM10, and Formaldehyde Exposure in the Hair Salons of South Korea

2020 ◽  
Author(s):  
Shiva Raj Acharya ◽  
Deog Hwan Moon ◽  
Yong Chul Shin
Keyword(s):  
Air Quality ◽  
South Korea ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Working Environment ◽  
Exposure Limit ◽  
Formaldehyde Exposure ◽  
Chemical Products ◽  
High Concentrations ◽  
And Control

Introduction: In hair salons, Workers and customers are exposed to high concentrations of several chemical compounds used during the working environment. Volatile Organic Compounds (VOCs), particulate matter (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), and formaldehyde are the major chemicals that alter the indoor air quality. This study aimed to assess the indoor air quality in hair salons of Gimhae, South Korea. Materials and Methods: To conduct the study, six hair salons were monitored for VOCs, formaldehyde, and PM10. The study was conducted from August to November 2017. Results: The findings showed higher concentrations of formaldehyde (> 0.50 ppm) and VOCs (> 0.08ppm) compared to EPA standard exposure limit; whereas PM10 was < 150㎍/㎥. Conclusion: Based on the findings, the ventilation systems were insufficient in the selected salons. Adequate ventilation and control facilities should be advised in applying the chemical products to observe the safety of workers and customers of hair salon and to sustain better indoor air quality.

Feinstaubfiltrierung: Saubere Luft atmen

2017 ◽  
Vol 22 (07/08) ◽  
pp. 106-107
Author(s):  
Marc Lichtenthäler
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Eine Hohe

Viele Studien belegen, dass durch eine hohe Indoor Air Quality die Produktivität gesteigert, Fehlzeiten abgebaut und Herz-Kreislauf-Erkrankungen vermieden werden können. Neben Behandlungs-, OP- und Pflegebereichen eines Klinikums sollten deshalb auch Bereiche mit gut aufbereiteter Raumluft bedacht werden, in denen sich ausschließlich Mitarbeiter aufhalten.

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