Article
Engineering, Environmental
Stephanie Arciva, Christopher Niedek, Camille Mavis, Melanie Yoon, Martin Esparza Sanchez, Qi Zhang, Cort Anastasio
Summary: Biomass burning releases phenols that can form aqueous secondary organic aerosol (aqSOA) in cloud/fog drops and aerosol liquid water (ALW). Highly substituted phenols have significant partitioning and oxidation kinetics in ALW, potentially being important sources of aqSOA. The formation of aqSOA is significant across a range of liquid water content.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jieqing Wu, Jiwei Chen, Lei Wang, Hongjun Zhu, Rui Liu, Guangliang Song, Chao Feng, Yufeng Li
Summary: This study presents a Bronsted acid-promoted aerobic photo-oxygenation method for the efficient synthesis of aromatic acids and ketones. It eliminates the need for transition metal complexes or organic photosensitizers, which increases its potential for industrial applications.
Review
Environmental Sciences
Laila Hamzai, Nicolas Lopez Galvez, Eunha Hoh, Nathan G. Dodder, Georg E. Matt, Penelope J. Quintana
Summary: SWBs have shown potential for multi-pollutant exposure assessment, including PAHs, in human environmental exposure studies. The results indicate that SWBs can capture personal exposures effectively and can be useful for global exposure and health studies. Correlations with concurrent biological and air measurements suggest that SWBs are capable of capturing exposure to various pollutants such as flame retardants, tobacco products, and PAHs.
JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY
(2022)
Article
Environmental Sciences
Ayman N. Saber, Haifeng Zhang, Ashraful Islam, Min Yang
Summary: This study reports the occurrence, fates, and carcinogenic risks of SPAHs and PAHs in two coking wastewater treatment plants, revealing that biological treatment processes effectively remove MPAHs, OPAHs, and NPAHs. Transformation and adsorption were identified as major mechanisms for removing different types of PAHs and SPAHs. Concerns were raised over the relatively high concentrations of SPAHs in excess sludge and treated effluent, as well as the potential lung cancer risks posed by the presence of SPAHs in the ambient air.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hongxuan Kuang, Yonghong Li, Leizi Li, Shengtao Ma, Taicheng An, Ruifang Fan
Summary: E-waste pollution has significant impact on the environment. This research assessed the impact of e-waste control on human pollutant exposure risk and identified biomarkers for classifying e-waste pollution levels. The results showed that implementing e-waste control measures effectively reduced exposure to pollutants and oxidative stress levels. Urinary biomarkers demonstrated an excellent ability to classify e-waste pollution and evaluate the effectiveness of pollution regulations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Yeong Jia Boom, Marie Enfrin, Dai Lu Xuan, Stephen Grist, Dilan Robert, Filippo Giustozzi
Summary: Recycled plastic modified asphalt is a new topic in the road construction industry. This study investigated the use of four types of recycled plastic in asphalt and found that except for the mixture at 180 degrees Celsius, adding recycled plastic can effectively reduce overall emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Airong Qiagedeer, Hiroshi Yamagishi, Shotaro Hayashi, Yohei Yamamoto
Summary: A whispering-gallery mode (WGM) optical resonance sensor for volatile organic compounds (VOCs) is developed using polystyrene (PS) microspheres doped with fluorescent beta-cyano-appended oligo(p-phenylenevinylene) (beta-COPV), showing high selectivity and sensitivity towards aromatic hydrocarbons such as benzene, toluene, and xylenes (BTXs) compared to conventional sensors.
Article
Environmental Sciences
D. Sofio, D. Long, T. Kohls, J. Kunz, M. Wentzel, D. Hanson
Summary: The effect of precursor molecular structural features on secondary organic aerosol (SOA) growth was investigated. The results showed that cyclic compounds were the most effective feature in producing SOA, followed by compounds with double bonds, while linear alkanes and isoprene were less effective. Carbonyl compounds showed significant increases in growth compared to alkanes, while alcohols, triple-bond compounds, aromatics, and epoxides were only slightly more effective than alkanes at producing SOA. The placement and presence of double bonds also had a significant impact on SOA yield.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Environmental
Tianzeng Chen, Jun Liu, Biwu Chu, Yanli Ge, Peng Zhang, Qingxin Ma, Hong He
Summary: Secondary organic aerosol (SOA) is an important component of atmospheric fine particulate matter (PM2.5), and its physicochemical properties change significantly during the aging process. By studying the continuous aging process of gas-phase organic intermediates and SOA formed from the photooxidation of toluene, it was found that the SOA mass concentration and corrected SOA yield were significantly enhanced as the OH exposure increased. Organic acids and multiple oxygen-containing oxidation products were continuously produced during the aging process, and functionalization of SOA dominated in the photochemical aging process. This study suggests that SOA yields as a function of OH exposure should be considered in air quality models to accurately assess their impact on SOA properties and regional air quality.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Jamie M. Dearnley, Charles Killeen, Rebecca L. Davis, Vince P. Palace, Gregg T. Tomy
Summary: This article reviews the metabolism and toxicity of polycyclic aromatic compounds (PACs) in fish and presents various methods for analyzing metabolite-containing bile. Recent environmental monitoring studies demonstrate the utility of this technique in assessing oil spill pollution, establishing baseline exposure, and evaluating pollution in urban waterways.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Yeong Jia Boom, Marie Enfrin, Stephen Grist, Filippo Giustozzi
Summary: This research investigates the fumes generated from producing polymer modified bitumen using different types of recycled plastics. The results show that incorporating recycled plastics can reduce emissions of volatile organic compounds and polycyclic aromatic hydrocarbons. However, specific compound concentrations may spike when recycled plastics are added, despite an overall reduction in concentration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Longmiao Yuan, Yingqin Wu, Qiaohui Fan, Ping Li, Jianjun Liang, Yan hong Liu, Rong Ma, Ruijie Li, LeiPing Shi
Summary: This study investigated the influence of soil organic matter (SOM) and low molecular weight organic acids (LMWOAs) on the adsorption of PAHs by minerals. The results showed that among the three minerals tested, Montmorillonite exhibited the highest adsorption capacity for PAHs, with the adsorption order of Pyrene>Phenanthrene>Naphthalene in accordance with their octanol-water partition coefficient (Kow). Inorganic ions (Ca2+) affected the adsorption of PAHs by competitive adsorption and cation-pi interactions. Furthermore, SOM enhanced the sorption of PAHs through various mechanisms, while LMWOAs significantly inhibited PAHs adsorption and promoted their desorption from minerals, thus increasing their bioavailability and providing a new strategy for improving PAHs cleanup efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Tianzeng Chen, Peng Zhang, Qingxin Ma, Biwu Chu, Jun Liu, Yanli Ge, Hong He
Summary: The study highlights the significant role of NOx in the formation of O3 and PM2.5. Reducing NOx concentration to the NOx-sensitive regime can effectively inhibit the formation of O3 and PM2.5.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Xinyu Huang, Zhanbin Yang, Meijia Liu, Jie He, Li Li, Changhao Cui, Zechun Huang, Shifeng Wang, Dahai Yan
Summary: This study investigates the emission and environmental risks of organic pollutants during co-firing coal liquefaction residue (CLR) in a circulating fluidized bed (CFB) boiler through field tests. The results show that co-firing CLR can reduce coal consumption without significantly affecting combustion parameters. Co-firing CLR does not increase the emission of polycyclic aromatic hydrocarbons (PAHs) compared to pure coal combustion, and fly ash has a higher concentration of PAHs.
Article
Multidisciplinary Sciences
Junfeng Wang, Jianhuai Ye, Qi Zhang, Jian Zhao, Yangzhou Wu, Jingyi Li, Dantong Liu, Weijun Li, Yange Zhang, Cheng Wu, Conghui Xie, Yiming Qin, Yali Lei, Xiangpeng Huang, Jianping Guo, Pengfei Liu, Pingqing Fu, Yongjie Li, Hyun Chul Lee, Hyoungwoo Choi, Jie Zhang, Hong Liao, Mindong Chen, Yele Sun, Xinlei Ge, Scot T. Martin, Daniel J. Jacob
Summary: Field observations during a winter haze event in Beijing reveal fast aqueous-phase conversion of fossil-fuel primary organic aerosol (POA) to secondary organic aerosol (SOA) at high relative humidity. It is suggested that ring-breaking oxidation of POA aromatic species may be the dominant mechanism for SOA formation. This POA origin for SOA could explain why SOA has been decreasing despite flat emissions of volatile organic compounds (VOCs) over the years 2013-2018.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Environmental
Mihnea Surdu, Houssni Lamkaddam, Dongyu S. Wang, David M. Bell, Mao Xiao, Chuan Ping Lee, Dandan Li, Lucia Caudillo, Guillaume Marie, Wiebke Scholz, Mingyi Wang, Brandon Lopez, Ana A. . Piedehierro, Farnoush Ataei, Rima Baalbaki, Barbara Bertozzi, Pia Bogert, Zoe Brasseur, Lubna Dada, Jonathan Duplissy, Henning Finkenzeller, Xu-Cheng He, Kristina Hohler, Kimmo Korhonen, Jordan E. Krechmer, Katrianne Lehtipalo, Naser G. A. . Mahfouz, Hanna E. Manninen, Ruby Marten, Dario Massabo, Roy Mauldin, Tuukka Petaja, Joschka Pfeifer, Maxim Philippov, Birte Rorup, Mario Simon, Jiali Shen, Nsikanabasi Silas Umo, Franziska Vogel, Stefan K. . Weber, Marcel Zauner-Wieczorek, Rainer Volkamer, Harald Saathoff, Ottmar Moehler, Jasper Kirkby, Douglas R. Worsnop, Markku Kulmala, Frank Stratmann, Armin Hansel, Joachim Curtius, Andre Welti, Matthieu Riva, Neil M. Donahue, Urs Baltensperger, Imad El Haddad
Summary: This study investigates the effect of high relative humidity (RH) on the gas-particle partitioning of biogenic oxidized organic molecules at low temperatures. The results demonstrate that high RH increases the partitioning of semivolatile compounds and leads to a shift in the chemical composition and volatility distribution of organic aerosols towards less oxygenated and more volatile species.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Automation & Control Systems
Martha Arbayani Zaidan, Naser Hossein Motlagh, Pak Lun Fung, Abedalaziz S. Khalaf, Yutaka Matsumi, Aijun Ding, Sasu Tarkoma, Tuukka Petaja, Markku Kulmala, Tareq Hussein
Summary: Air quality low-cost sensors (LCSs) are affordable and scalable for high-resolution air pollution monitoring, but face challenges in accuracy, especially for extreme events. We propose a Bayesian calibration method that effectively corrects LCSs measurements and detects calibration drift. Experimental results on smoking events show accurate estimation of aerosol mass concentration. Black-box calibrators outperform white-box ones, but may drift during new events, while white-box calibrators remain robust. Implementing both calibrators enables strength extraction and drifting monitoring for calibration models. The method can be applied to other LCSs with accuracy issues.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Engineering, Environmental
Fangfang Ma, Hong-Bin Xie, Rongjie Zhang, Lihao Su, Qi Jiang, Weihao Tang, Jingwen Chen, Morten Engsvang, Jonas Elm, Xu-Cheng He
Summary: Iodic acid (IA) has been identified as a significant contributor to new particle formation (NPF) in marine atmospheres. However, there is limited knowledge about which atmospheric vapors can enhance IA-induced NPF. In this study, a three-step procedure was employed to evaluate the enhancing potential (EP) of potential atmospheric nucleation precursors on IA-induced NPF. A quantitative structure-activity relationship model was developed to evaluate the EP of different precursors, and amines and O/S-atom-containing acids were found to have high EP.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Suneeti Mishra, Sachchida Nand Tripathi, Vijay P. Kanawade, Sophie L. Haslett, Lubna Dada, Giancarlo Ciarelli, Varun Kumar, Atinderpal Singh, Deepika Bhattu, Neeraj Rastogi, Kaspar R. Daellenbach, Dilip Ganguly, Prashant Gargava, Jay G. Slowik, Markku Kulmala, Claudia Mohr, Imad El-Haddad, Andre S. H. Prevot
Summary: Measurements suggest that emissions from biomass burning are responsible for the rapid growth of particles leading to haze formation during the night in Delhi. Uncontrolled biomass burning affects air quality, climate, and human health globally, with Delhi experiencing severe haze events during winter. Despite unfavorable conditions for new-particle formation, particle growth events occur systematically. The condensation of primary organic vapours from biomass burning is the leading cause of particle growth, driven by a sharp decrease in night-time temperatures and rapid increase in biomass-burning emissions. This unique mechanism may affect 5% of the world's population and regional climate. Regulating uncontrolled biomass-combustion emissions can inhibit haze formation and improve human health in India.
Article
Multidisciplinary Sciences
Wei Nie, Chao Yan, Liwen Yang, Pontus Roldin, Yuliang Liu, Alexander L. Vogel, Ugo Molteni, Dominik Stolzenburg, Henning Finkenzeller, Antonio Amorim, Federico Bianchi, Joachim Curtius, Lubna Dada, Danielle C. Draper, Jonathan Duplissy, Armin Hansel, Xu-Cheng He, Victoria Hofbauer, Tuija Jokinen, Changhyuk Kim, Katrianne Lehtipalo, Leonid Nichman, Roy L. Mauldin, Vladimir Makhmutov, Bernhard Mentler, Andrea Mizelli-Ojdanic, Tuukka Petaja, Lauriane L. J. Quelever, Simon Schallhart, Mario Simon, Christian Tauber, Antonio Tome, Rainer Volkamer, Andrea C. Wagner, Robert Wagner, Mingyi Wang, Penglin Ye, Haiyan Li, Wei Huang, Ximeng Qi, Sijia Lou, Tengyu Liu, Xuguang Chi, Josef Dommen, Urs Baltensperger, Imad El Haddad, Jasper Kirkby, Douglas Worsnop, Markku Kulmala, Neil M. Donahue, Mikael Ehn, Aijun Ding
Summary: The interaction between nitrogen monoxide (NO) and organic peroxy radicals (RO2) has a significant impact on the formation of highly oxygenated organic molecules (HOM), which are key precursors of secondary organic aerosols. Contrary to previous belief, low concentrations of NO can enhance HOM production by modulating RO2 loss and promoting the formation of alkoxy radicals. This challenges the notion that NO monotonically reduces HOM yields and expands the understanding of RO2-NO interactions.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Edinsson Munoz-Vega, Stephan Schulz, Paula Rodriguez-Escales, Vera Behle, Lucas Spada, Alexander L. Vogel, Xavier Sanchez-Vila, Christoph Schueth
Summary: Contamination of groundwater with pharmaceutical active compounds (PhACs) has increased over the last decades. The potential pathways of PhACs to groundwater include irrigation, managed aquifer recharge, bank filtration, as well as natural processes such as losing streams of PhACs-loaded source waters. This study aims to understand the influence of soil biofilms on hydraulic conductivity reduction and the fate of PhACs in the subsurface. The results show enhanced sorption and biodegradation for all PhACs in the system with higher biological activity, and bioclogging was more prevalent in the absence of organic matter. The importance of utilizing natural soils with organic matter in studying the role of soil biofilms in bioclogging and the fate of PhACs in soils is highlighted.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Lucia Caudillo, Mihnea Surdu, Brandon Lopez, Mingyi Wang, Markus Thoma, Steffen Brakling, Angela Buchholz, Mario Simon, Andrea C. Wagner, Tatjana Mueller, Manuel Granzin, Martin Heinritzi, Antonio Amorim, David M. Bell, Zoe Brasseur, Lubna Dada, Jonathan Duplissy, Henning Finkenzeller, Xu-Cheng He, Houssni Lamkaddam, Naser G. A. Mahfouz, Vladimir Makhmutov, Hanna E. Manninen, Guillaume Marie, Ruby Marten, Roy L. Mauldin, Bernhard Mentler, Antti Onnela, Tuukka Petaja, Joschka Pfeifer, Maxim Philippov, Ana A. Piedehierro, Birte Rorup, Wiebke Scholz, Jiali Shen, Dominik Stolzenburg, Christian Tauber, Ping Tian, Antonio Tome, Nsikanabasi Silas Umo, Dongyu S. Wang, Yonghong Wang, Stefan K. Weber, Andre Welti, Marcel Zauner-Wieczorek, Urs Baltensperger, Richard C. Flagan, Armin Hansel, Jasper Kirkby, Markku Kulmala, Katrianne Lehtipalo, Douglas R. Worsnop, Imad El Haddad, Neil M. Donahue, Alexander L. Vogel, Andreas Kuerten, Joachim Curtius
Summary: The complete chemical characterization of nanoparticles is challenging due to their abundance but negligible mass. This study compares different techniques for the chemical composition analysis of secondary organic aerosol nanoparticles. The experiments were conducted at the CLOUD chamber, and simultaneous measurements were performed using four different techniques. The results generally agree on the important compounds found in the nanoparticles, but each technique captures different parts of the organic spectrum, potentially due to factors such as thermal decomposition or sampling artifacts.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Henning Finkenzeller, Denis Poehler, Martin Horbanski, Johannes Lampel, Ulrich Platt
Summary: Optical resonators are used to enhance absorption in compact instruments in spectroscopic measurements of atmospheric trace gases. Accurate knowledge of the optical path length L and its spectral dependency on the wavelength lambda is crucial for retrieving trace gas concentrations. Existing calibration techniques have limitations, but two new methods, NB-CRD and ICOM, aim to overcome these limitations. These methods improve the determination of L(lambda) and simplify the use of cavity-enhanced absorption spectroscopy.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
