Article
Environmental Sciences
Jiayu Li, Sultan Zuraimi, Stefano Schiavon, Man Pun Wan, Jinwen Xiong, Kwok Wai Tham
Summary: This study evaluated the diurnal trends of indoor and outdoor fluorescent biological airborne particles (FBAPs) and their contributions to particulate matter (PM). It was found that both indoor and outdoor PM trends were driven by the bioaerosol component. Outdoor FBAP mass concentration peaked around sunrise and decreased during the daytime and increased at night. Indoor FBAP concentration increased after the HVAC system started and peaked at 8:00 and then decreased. Based on regression modeling, indoor PM, non-FBAP, and FBAP sources contributed 93%, 67%, and 97% to indoor mass concentrations, respectively.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Construction & Building Technology
Hsiang-Lin Yu, Tsang-Jung Chang
Summary: This study proposes a new 3D approach for modeling indoor airborne particulate matter (PM) concentration using cellular automata (CA) framework. By considering four major PM transport mechanisms, the CA approach achieves high accuracy and efficiency in numerical simulations, making it a useful tool for 3D simulations of indoor PM transport and distribution.
BUILDING AND ENVIRONMENT
(2022)
Article
Environmental Sciences
Justin Y. Y. Lee, Yanhao Miao, Ricky L. T. Chau, Mark Hernandez, Patrick K. H. Lee
Summary: AI models were developed to estimate real-time and near-future concentrations of bioaerosols and particulate matter in indoor environments. The models utilized physical and chemical data from air quality sensors and fluorescence observations of bioaerosols. The study demonstrated the effectiveness of AI-based methods in improving indoor environmental quality.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Paola Fermo, Begona Artinano, Gianluigi De Gennaro, Antonio Marco Pantaleo, Alessandro Parente, Fiorella Battaglia, Elena Colicino, Gianluca Di Tanna, Andouglas Goncalves da Silva Junior, Igor Gadelha Pereira, Gabriel Santos Garcia, Luiz Marcos Garcia Goncalves, Valeria Comite, Alessandro Miani
Summary: The study tested a commercial system as an air purifier and found that it significantly reduced PM and VOCs concentrations in the air by about 90% and over 50%, respectively.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Dong-Wook Lee, Jongmin Oh, Shinhee Ye, Youngrin Kwag, Wonho Yang, Yangho Kim, Eunhee Ha
Summary: The study found a significant association between exposure to PM10 and blood cadmium concentrations among Korean housewives, suggesting that the body burden of heavy metals is significantly associated with air pollution.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Shijun Yan, Chang Liu, Li-an Hou, Bo Wang, Yumeng Zhang
Summary: This study presents a new filterless indoor air purifier, the Cloud-Air-Purifying (CAP) air purifier, which uses heterogeneous condensation and supergravity technology to remove fine particles and disinfect bioaerosols. The CAP air purifier showed high efficiency in purifying particulate matter and effectively disinfecting bioaerosols. The study also investigated other factors such as ClO2 release concentrations, noise, and power consumption, which were found to be within acceptable limits.
ENVIRONMENTAL RESEARCH
(2023)
Article
Construction & Building Technology
Jean C. Rivera-Rios, Taekyu Joo, Masayuki Takeuchi, Thomas M. Orlando, Tracy Bevington, John W. Mathis, Cliffton D. Pert, Brandon A. Tyson, Tyler M. Anderson-Lennert, Joshua A. Smith, Nga Lee Ng
Summary: This study measured particle number and mass concentrations in aircraft cabins during July 2020 in Atlanta, with restaurants having the highest concentrations and in-flight aircraft cabins having the lowest.
Article
Environmental Sciences
Dimitrios Bousiotis, Leah-Nani S. Alconcel, David C. S. Beddows, Roy M. Harrison, Francis D. Pope
Summary: Air quality, both indoor and outdoor, is crucial for public health. This study introduces a new methodology using low-cost sensors and source apportionment techniques to understand the importance of different air pollution sources on indoor air quality. The results demonstrate the highest concentrations of PM in the bedroom, the highest PM spikes in the kitchen during cooking times, and the highest PM1 concentrations in the office due to outdoor infiltration. Source apportionment analysis shows that up to 95% of PM1 comes from outdoor sources in all rooms.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Construction & Building Technology
Chester J. Lau, Max Loebel Roson, Keifer M. Klimchuk, Tania Gautam, Boyang Zhao, Ran Zhao
Summary: Household humidification is beneficial for combating dry indoor air, but the use of ultrasonic humidifiers may lead to the generation of PM that can affect indoor air quality. Further investigation is needed to understand the impact of humidifier operation on human health and indoor atmospheric chemistry.
Article
Environmental Sciences
N. Manojkumar, B. Srimuruganandam
Summary: This study assesses the spatial and temporal variations of particulate matter (PM) concentration in indoor and outdoor environments in Vellore city, India. Results showed that both bimodal and trimodal distributions were common in indoor and outdoor environments. Indoor concentrations were highest during summer and monsoon seasons, while outdoor concentrations peaked in summer. Correlation analysis indicated non-regional sources for coarse PM and local sources for fine PM.
Article
Environmental Sciences
Mehdi Fazlzadeh, Mohammad Sadegh Hassanvand, Ramin Nabizadeh, Mansour Shamsipour, Mojtaba Salarifar, Kazem Naddafi
Summary: This study investigated the impact of air purifiers in removing different particulate matter in dormitories, and found that smoking significantly lowered the efficiency of removing PM10, PM2.5, PM1, and PNC. However, using air purifiers can reduce the levels of PM10 and PM2.5, even below the WHO guideline, in non-smoker rooms, reducing the non-carcinogenic risks of exposure.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Environmental Sciences
William L. Taylor, Steven J. Schuldt, Justin D. Delorit, Christopher M. Chini, Teodor T. Postolache, Christopher A. Lowry, Lisa A. Brenner, Andrew J. Hoisington
Summary: Exploratory studies suggest a potential link between indoor PM2.5 exposure and major depressive disorder. Modifying input parameters can estimate the burden of major depressive disorder in the US due to indoor PM2.5 exposure, with findings indicating that improving HVAC filter efficiency may slightly reduce depressive disorders.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Construction & Building Technology
Ge Zhang, Wenqing Li, Qian Cheng, Zhipeng Zhou, Qiaochu Wang, Zhiyuan Peng
Summary: This study determined the sources of indoor particulate matter at Potala Palace Museum in Tibet, China and evaluated the potential hazards of these pollutants for cultural relics. The research found that the indoor PM1-10 concentration was much higher than the outdoor concentration, and was less affected by outdoor sources. Proper ventilation and the installation of air conditioning systems can help dilute indoor suspended particulate matter and better protect the museum's cultural relics.
Article
Construction & Building Technology
Jodelle Degois, Marc Veillette, Patrick Poulin, Benoit Levesque, Daniel Aubin, Boualem Ouazia, Mario Brisson, Francois Maltais, Caroline Duchaine
Summary: Indoor air quality is crucial for public health, with ventilation systems playing a significant role in microbial communities in extreme environments. The study found that different ventilation strategies can impact the concentration and diversity of indoor microbiota significantly.
Article
Environmental Sciences
Zhuoying Li, Jianjiang Lu, Yanbin Tong, Shanman Li, Feifei He
Summary: Environmental pollution has become a growing concern in China due to rapid economic development. This study analyzed atmospheric particulate matter samples from different cities in Xinjiang, China to understand the spatial distribution of microbial communities. The results showed that environmental factors such as temperature, humidity, and wind speed had a significant impact on microorganisms, while O3 had a negative correlation. Short-range transported air masses had a greater impact on local pollutants and microorganisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Victoria Aleksandropoulou, Mihalis Lazaridis
ATMOSPHERIC POLLUTION RESEARCH
(2019)
Article
Environmental Sciences
Eleftheria Chalvatzaki, Sofia Eirini Chatoutsidou, Heli Lehtomaki, Susana Marta Almeida, Konstantinos Eleftheriadis, Otto Hanninen, Mihalis Lazaridis
Article
Meteorology & Atmospheric Sciences
Mihalis Lazaridis
ATMOSPHERIC RESEARCH
(2019)
Article
Archaeology
Sofia Eirini Chatoutsidou, Mihalis Lazaridis
JOURNAL OF CULTURAL HERITAGE
(2019)
Article
Environmental Sciences
Minas Makridis, Mihalis Lazaridis
AIR QUALITY ATMOSPHERE AND HEALTH
(2019)
Article
Environmental Sciences
Sofia Eirini Chatoutsidou, Ilias Kopanakis, Konstantinos Lagouvardos, Nikolaos Mihalopoulos, Kjetil Torseth, Mihalis Lazaridis
AIR QUALITY ATMOSPHERE AND HEALTH
(2019)
Article
Environmental Sciences
Mihalis Lazaridis
Article
Environmental Sciences
S. E. Chatoutsidou, C. Pantelaki, I. Kopanakis, D. Andreadakis, S. Petroulakis, M. Lazaridis
Summary: The study showed that indoor PM(10) levels substantially increased during painting and sketching activities, with higher concentrations compared to outdoor levels. Different elemental content, including heavy metals, were found in relation to different sources, indicating a significant impact of indoor painting activities on PM(10) concentrations.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Eleftheria Chalvatzaki, Sofia Eirini Chatoutsidou, Mihalis Lazaridis
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Chemical
Sofia Eirini Chatoutsidou, Mihalis Lazaridis
Summary: In this study, the resuspension of particles due to surface vibration was investigated. The conditions for resuspension were found to depend on the balance between the oscillation force and the adhesive and gravitational forces. Results indicate that resuspension is influenced by the characteristics of the applied force, material properties, plate thickness, and particle size.
Article
Environmental Sciences
Eleftheria Chalvatzaki, Sofia Eirini Chatoutsidou, Ilias Kopanakis, Dimitris Melas, Daphne Parliari, Nikos Mihalopoulos, Mihalis Lazaridis
Summary: The study investigated the deposited dose in the human respiratory tract and its influencing factors in urban/suburban locations within Greek cities. It found that urban areas had higher daily deposited doses compared to suburban areas, and cold periods showed higher deposition rates than warm periods. Increased deposition during cold periods in the evening/night hours was attributed to significant heating emissions, and urban-associated sources contributed similarly to deposited dose regardless of season. The highest deposited dose was observed during Sahara dust events.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Construction & Building Technology
Sofia Eirini Chatoutsidou, Aggeliki Saridaki, Louiza Raisi, Eleftheria Katsivela, George Tsiamis, Mihalis Zografakis, Mihalis Lazaridis
Summary: This study provides a comprehensive measurement of airborne particles and bacterial analysis in a dental clinic, revealing a significant impact of bacterial load in the treatment room on the nearby waiting room where dental procedures were not performed. Dental activities such as grinding and drilling were found to increase the inhaled particles and microorganisms.
Article
Archaeology
Aggeliki Saridaki, Eleftheria Katsivela, Thodoros Glytsos, George Tsiamis, Evaggelia Violaki, Agisilaos Kaloutsakis, Nicolas Kalogerakis, Mihalis Lazaridis
Summary: This study investigated the bacterial communities on the surfaces of museum artefacts made of different materials and found significant variation in bacterial composition and diversity. Paracoccus was the most abundant genus in most art objects, while Modesto-bacter and Streptococcus dominated the objects made of marble and painted plaster, respectively. Statistical analysis showed clustering based on surface material, indicating the direct impact of material on bacterial profile.
JOURNAL OF CULTURAL HERITAGE
(2022)
Article
Environmental Sciences
Eleftheria Katsivela, Louisa Raisi, Mihalis Lazaridis
Summary: The study found that the levels of airborne microbes in the Historical Museum of Crete were related to indoor activities, environmental conditions, and the treatment of exhibits. The deployment of photocatalytic ionizers significantly reduced the viable microbe concentrations indoors by 5.5% to 76%.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Environmental Sciences
Eleftheria Chalvatzaki, Sofia Eirini Chatoutsidou, Vania Martins, Tiago Faria, Evangelia Diapouli, Manousos Manousakas, Susana Marta Almeida, Konstantinos Eleftheriadis, Mihalis Lazaridis
AEROSOL AND AIR QUALITY RESEARCH
(2020)