Article
Construction & Building Technology
Seongjun Park, Shinhye Lee, Myoungsouk Yeo, Donghyun Rim
Summary: In order to monitor indoor particulate matter (PM) concentration more efficiently, low-cost sensors have been used, although there is limited information about their performance in monitoring indoor aerosols. A research framework was established to evaluate the performance of a commonly used low-cost sensor (PurpleAir) compared to two research-grade light scattering sensors (Grimm 11-A, Sidepak AM520) in lab and residential settings. The results showed that low-cost sensors have good consistency for mass concentrations, but lower consistency for particles larger than 1 μm compared to research-grade sensors. The study also highlighted the need for quality assurance in episodic indoor emission events that lead to elevated PM2.5 concentrations (>100 μg m(-3)).
BUILDING AND ENVIRONMENT
(2023)
Article
Environmental Sciences
Adrian R. Muxworthy, Claire Lam, David Green, Alison Cowan, Barbara A. Maher, Tomasz Gonet
Summary: The study used magnetic analysis on inhalable particulate matter collected from different monitoring stations in London to identify high concentrations of magnetite particles and the presence of nanoparticles at low temperatures. Vehicle emissions were confirmed as the main source of pollutants, with meteorological events affecting the removal of larger airborne particles.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Zenon Nieckarz, Jerzy A. Zoladz
Summary: The paper introduced a calibration system for low-cost PM sensors developed and used at Jagiellonian University in Krakow, Poland, which is capable of generating stable and repeatable concentrations of suspended PM.
Article
Environmental Sciences
Nana A. Amoah, Guang Xu, Ashish Ranjan Kumar, Yang Wang
Summary: Mining-induced coal dust causes respiratory diseases, especially coal workers' pneumoconiosis (CWP). Current underground monitors are costly and not suitable for regular sample monitoring. Low-cost PM sensors offer a potential solution but require precise calibration. This study calibrated Plantower PMS5003 sensors and evaluated other commercially available PM sensors, demonstrating the feasibility of low-cost sensors for real-time personal coal dust monitoring if a robust calibration model is applied.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Temitope Oluwadairo, Lawrence Whitehead, Elaine Symanski, Cici Bauer, Arch Carson, Inkyu Han
Summary: This study examined the linear relationship and agreement between low-cost particulate matter sensors (LCPMS) and research grade particulate matter (PM) monitors. Results showed that the particle size bins of PM affected the linear relationship, with larger particles having a higher slope and larger error in converted mass concentration.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Environmental Sciences
Marie-Laure Aix, Sean Schmitz, Dominique J. Bicout
Summary: Low-cost sensors (LCS) of particulate matter (PM) are increasingly used worldwide to accurately assess individual exposure to pollutants. However, a standardized methodology for calibrating PM sensors is still lacking. In this study, a calibration method combining an adaptation of an approach for gas-phase pollutants and a dust event preprocessing is developed for PM LCS commonly used in urban environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Simona Kiresova, Milan Guzan, Branislav Sobota
Summary: The paper explores the measurement of different size components of particulate matter, focusing on typical particle size, mass, and number concentrations in Kosice and its surrounding areas in Slovakia. By deploying the IPS-7100 sensor in late December 2022, particles smaller than the detection limit of other low-cost optical sensors, namely SPS30 and SEN54, could now be measured. The results indicate that while the mass concentration of ultrafine particles is insignificant compared to fine and coarse particles, ultrafine particles dominate in terms of number concentration, posing a health concern.
Review
Materials Science, Multidisciplinary
Nana A. Amoah, Guang Xu, Yang Wang, Jiayu Li, Yongming Zou, Baisheng Nie
Summary: Researchers conducted a critical review of the current status of particle matter sensors and discussed the potential application of low-cost sensors in underground mines. They identified sources of sensor errors and proposed comprehensive calibration processes and evaluation protocols to improve sensor performance.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Environmental Sciences
Hao Lin, Qingcai Chen, Mamin Wang, Tian Chang
Summary: This study examined the oxidative toxicity of different components of PM2.5, finding that water-soluble components and metal ions were the main contributors to oxidation activity, while non-extractable and water-insoluble components exhibited higher oxidation activity. The research suggests that future attention should be focused on the oxidative toxicity of non-extractable components and that single PM components should not be studied independently.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Analytical
Edwin Villanueva, Soledad Espezua, George Castelar, Kyara Diaz, Erick Ingaroca
Summary: Recently, low-cost sensors have emerged to measure air quality, allowing for high-resolution monitoring of air in large urban areas. However, these sensors require careful calibration, which often involves expensive and time-consuming field data collection. In this paper, a machine-learning-based approach is proposed to generate calibration models for new Particulate Matter sensors, using available field data and models from existing sensors. Experimental results show that this approach can produce accurate calibration models for new sensors with as few as four days of field data, comparable to models adjusted with data from periods ten times longer.
Article
Environmental Sciences
Adrian Zafra-Perez, Carlos Boente, Manuel Garcia-Diaz, Juan Antonio Gomez-Galan, Ana Sanchez de la Campa, Jesus D. de la Rosa
Summary: This paper presents an innovative methodology for online monitoring of PM10 concentrations in air using a low-cost sensor onboard an unmanned aerial vehicle. The study found that in intense mining areas, unhealthy concentrations of PM10 could be released and transported to surrounding populations. This study demonstrates the potential applicability of airborne LCSs in high-resolution online monitoring of PM in mining.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Noriyoshi Ogino, Koichiro Miyagawa, Kenjiro Nagaoka, Kazuhiro Sumida, Masashi Kusanaga, Shinji Oe, Yuichi Honma, Michihiko Shibata, Masaru Harada, Narufumi Suganuma, Keiki Ogino
Summary: The study found that atmospheric particulate matter in Japan can stimulate lipogenesis in hepatocytes and inhibit autophagic degradation, indicating potential effects on liver health.
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY
(2021)
Article
Chemistry, Analytical
Florentin Michel Jacques Bulot, Hugo Savill Russell, Mohsen Rezaei, Matthew Stanley Johnson, Steven James Ossont, Andrew Kevin Richard Morris, Philip James Basford, Natasha Hazel Celeste Easton, Hazel Louise Mitchell, Gavin Lee Foster, Matthew Loxham, Simon James Cox
Summary: In this study, the performance and influencing factors of eight low-cost PM sensors were analyzed. It was found that different sensors have different independence and sensitivity in measuring particle concentration and size. The study provides valuable insights for improving the accuracy and reliability of low-cost PM sensors.
Article
Multidisciplinary Sciences
Sungho Hwang, So-Yeon Kim, Sangjun Choi, Sangwon Lee, Dong-Uk Park
Summary: This study evaluated the exposure levels of airborne endotoxin and heavy metals in three different South Korean subway environments and found that subway characteristics can influence these levels. Endotoxin and heavy metal levels varied in different areas of the subway, with higher levels in the morning compared to at night. Positive correlations were also found between endotoxin and certain heavy metals. Further studies with larger sample sizes are needed to identify the correlation between airborne endotoxin and heavy metal levels.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Eunhye Kim, Byeong-Uk Kim, Hyun Cheol Kim, Soontae Kim
Summary: This study found significant impacts of NH3 emissions from upwind and downwind areas on PM2.5 concentrations in Northeast Asia, especially in spring and winter, through simulations.
ENVIRONMENTAL POLLUTION
(2021)
Article
Green & Sustainable Science & Technology
Aristeidis A. Bloutsos, Panayotis C. Yannopoulos
Summary: This study evaluated the air quality on the University of Patras Campus (UPC) and compared it with the air quality in downtown Patras. The results showed that the concentrations of nitrogen oxides and carbon monoxide were lower on the campus compared to downtown. The findings also highlighted the influence of seasonality and meteorological parameters on the concentration levels.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2023)
Article
Environmental Sciences
Niklas Benedikt Blum, Stefan Wilbert, Bijan Nouri, Jonas Stuehrenberg, Jorge Enrique Lezaca Galeano, Thomas Schmidt, Detlev Heinemann, Thomas Vogt, Andreas Kazantzidis, Robert Pitz-Paal
Summary: All-sky imagers (ASIs) can be used to model clouds and detect spatial variations of cloud attenuation. A novel procedure is developed using a network of ASIs to accurately model clouds and determine cloud attenuation over every location in the observed area. The approach combines images from neighboring ASIs to detect areas covered by different types of clouds and transforms them into maps of attenuation index. These maps are then combined using an accuracy-weighted average, and a probabilistic procedure is used to derive a map of cloud attenuation. The ASI network significantly reduces errors compared to current methods in all atmospheric conditions.
Article
Environmental Sciences
Andreas Aktypis, Christos Kaltsonoudis, Ksakousti Skyllakou, Angeliki Matrali, Christina N. Vasilakopoulou, Kalliopi Florou, Spyros N. Pandis
Summary: Two field campaigns were conducted in Patras to measure nucleation frequency. Surprisingly, only 12% of the available measurement days had new particle formation events. However, nucleation mode particles with average diameters of 20-40 nm appeared on 31% of the days. These particles did not grow and were not associated with emissions close to the measurement site, indicating they formed several hours earlier in a different area and were transported to Patras.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Konstantinos Dimitriou, Iasonas Stavroulas, Georgios Grivas, Charalampos Chatzidiakos, Georgios Kosmopoulos, Andreas Kazantzidis, Konstantinos Kourtidis, Athanasios Karagioras, Nikolaos Hatzianastassiou, Spyros N. Pandis, Nikolaos Mihalopoulos, Evangelos Gerasopoulos
Summary: Measurements of PM2.5 concentrations in five major Greek cities were conducted using low-cost sensor-based monitors. The study examined the factors influencing the spatiotemporal variability of PM2.5 levels, including local meteorological parameters and air mass residence time models.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Eleni Karnezi, Liine Heikkinen, Markku Kulmala, Spyros N. Pandis
Summary: Various parameterizations of organic aerosol (OA) formation and its subsequent evolution are evaluated using ground measurements collected during the 2013 PEGASOS field campaign. The performance of different chemical aging schemes is examined, considering biogenic and anthropogenic OA components. All schemes show satisfactory results and predict similar contributions of different OA sources and pathways. Biogenic secondary OA has the highest contribution, followed by anthropogenic secondary OA and oxidation of intermediate-volatility compounds. Primary OA and long-range transport also contribute to OA formation.
Article
Environmental Sciences
Christos Kaltsonoudis, Olga Zografou, Angeliki Matrali, Elias Panagiotopoulos, Alexandros Lekkas, Mariangela Kosmopoulou, Dimitris Papanastasiou, Konstantinos Eleftheriadis, Spyros N. Pandis
Summary: A new gas inlet port and ionization scheme have been developed and coupled to a high-resolution TOF MS for the detection and measurement of atmospheric VOCs and IVOCs. The instrument exhibits superior performance, with linear response to a wide range of organic compounds and detection limits as low as 1 ppt.
Article
Environmental Sciences
Ioannis D. Apostolopoulos, George Fouskas, Spyros N. Pandis
Summary: This study investigates different approaches for the field calibration of the low-cost air quality monitoring device ENSENSIA in Greece. The Random Forest algorithm exhibited the best performance in correcting O-3 and NO2, reducing mean error and improving R-2 values. The Long-Short Term Memory Network (LSTM) also showed good performance in correcting the measurements of the two pollutants.
Article
Environmental Sciences
Brian T. Dinkelacker, Pablo Garcia Rivera, Julian D. Marshall, Peter J. Adams, Spyros N. Pandis
Summary: Machine learning approaches were used to downscale coarse-resolution CTM predictions to high spatial resolutions, successfully predicting PM2.5 concentrations and source contributions in southwestern Pennsylvania in February and July 2017. The best performing model was a random forest model, which accurately reproduced PM2.5 concentrations for all components and sources.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Evangelia Siouti, Konstantinos Kilafis, Ioannis Kioutsioukis, Spyros N. Pandis
Summary: Residential biomass burning is a major source of air pollution during winter in urban areas. However, predicting the corresponding particle emissions is difficult and models often struggle to reproduce observed particulate matter concentrations. This study combines measurements from PM sensors and a chemical transport model to estimate the spatial and temporal distribution of biomass burning emissions in an urban area. The results show high emissions from biomass burning, with peak concentrations occurring at nighttime.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Archaeology
Angeliki Matrali, John K. Kodros, Maria Papathanasiou, Spyros N. Pandis
Summary: Soiling of cultural heritage due to air pollution is a major challenge for the conservation community, and this study aims to understand the optical degradation of paintings exposed to particulate matter. The experiment shows that moderate ambient pollution can lead to perceptible color changes in less than a year, indicating the vulnerability of unprotected artwork.
JOURNAL OF CULTURAL HERITAGE
(2023)
Review
Physiology
Christos Zerefos, Ilias Fountoulakis, Kostas Eleftheratos, Andreas Kazantzidis
Summary: Solar ultraviolet-B (UV-B) radiation has been crucial for life’s evolution on Earth. UV exposure to humans has both risks and benefits, which are difficult to determine due to environmental and physiological factors. This review discusses the effects of UV-B radiation on humans and the mechanisms controlling its levels. It also reveals the uncertainties in future levels caused by climate change, emphasizing the need for continued precautionary measures to protect against excess UV-B exposure.
PHYSIOLOGICAL REVIEWS
(2023)
Article
Chemistry, Analytical
Georgios Kosmopoulos, Vasileios Salamalikis, Stefan Wilbert, Luis F. Zarzalejo, Natalie Hanrieder, Stylianos Karatzas, Andreas Kazantzidis
Summary: This study investigated the accuracy of PMS 5003 sensors in measuring particle number concentrations in different environments. The results showed that the sensors exhibited good correlation with the reference instrument for particles smaller than 1μm in urban and background areas, but performed poorly in a dry area. During dust events, the sensors were unable to accurately report particle number distributions and consistently underestimated particle number concentrations.
Article
Environmental Sciences
Kalliopi Florou, John K. Kodros, Marco Paglione, Spiro Jorga, Stefania Squizzato, Mauro Masiol, Petro Uruci, Athanasios Nenes, Spyros N. Pandis
Summary: The combustion of pellets in residential heating stoves has increased globally, but it is expected to have a negative impact on air quality. This study focused on the atmospheric aging of pellet emissions, investigating the effects of night-time aging and relative humidity. The results showed that the organic aerosol in pellet emissions can chemically evolve under low photochemical activity, leading to the formation of secondary organic aerosol (SOA) under certain conditions.
ENVIRONMENTAL SCIENCE-ATMOSPHERES
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)