Article
Environmental Sciences
Fangbing Li, Dan Dan Huang, Wei Nie, Yee Jun Tham, Shengrong Lou, Yuanyuan Li, Linhui Tian, Yuliang Liu, Min Zhou, Haichao Wang, Liping Qiao, Hongli Wang, Zhe Wang, Cheng Huang, Yong Jie Li
Summary: This study measures the concentrations and diurnal variations of Cl-2, ClNO2, and N2O5 in the atmosphere of Shanghai and Changzhou using HR-ToF-CIMS. The results show differences in the levels and temporal patterns of these species between the two cities, indicating different N2O5 uptake and Cl activation efficiency. Heterogeneous uptake of ClNO2 and photolysis of O-3 are believed to contribute to efficient Cl-2 formation at night and day, respectively.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Eleonora Frollini, Elisabetta Preziosi, Nicoletta Calace, Maurizio Guerra, Nicolas Guyennon, Marco Marcaccio, Stefano Menichetti, Emanuele Romano, Stefano Ghergo
Summary: Groundwater resources are vital for sustaining water ecosystems and human activities. Early actions are needed to address the long-lasting impacts from anthropogenic activities. European Union policies, such as the Water Framework Directive, require Member States to identify and reverse significant upward trends in pollutant concentrations, with Italy recently publishing official guidelines for trend analysis. Various statistical methods, such as the Mann-Kendall test and Sen's method, are proposed for trend analysis and estimation of concentration scenarios.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Jianfu Chen, Ye Chen, Haifeng Wang, P. Hu
Summary: The Haber-Bosch process, utilizing Fe as the catalyst, is the dominant large-scale nitrogen fixation method. The intrinsic activity trend of Fe catalysts on different surfaces is investigated using density functional theory (DFT) and microkinetic analyses. The Fe surfaces are ranked in terms of catalytic activity as Fe(111) > Fe(211) > Fe(210) > Fe(100) > Fe(110). The activity trend is found to be correlated to the barrier of the rate-determining step, N-2 dissociative adsorption barrier, and surface energies. The higher association barriers on flat surfaces compared to stepped surfaces are explained.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Dan Wang, Pinhua Xie, Renzhi Hu, Zhiyan Li, Hao Chen, Huawei Jin
Summary: This study measured NO3, NO2, O3, and relevant parameters in a rural site on the North China Plain. The results showed that the NOx chemistry was active in the rural site during summer, with the heterogeneous reaction of N2O5 dominating the nocturnal NOx loss.
Article
Engineering, Environmental
Haley M. Royer, Dhruv Mitroo, Sarah M. Hayes, Savannah M. Haas, Kerri A. Pratt, Patricia L. Blackwelder, Thomas E. Gill, Cassandra J. Gaston
Summary: The study found that saline lakebed dust is a source of particulate chloride, generating high concentrations of ClNO2, but the underlying physiochemical factors responsible for observed yields are poorly understood. Single particle and bulk techniques showed that trace highly hygroscopic magnesium and calcium chloride minerals may facilitate ClNO2 formation at low humidity. Furthermore, it was discovered that the composition of the aerosol surface, rather than the bulk, is critical in ClNO2 formation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Review
Environmental Sciences
Amina Richa, Sami Touil, Meriem Fizir
Summary: This review introduces tracking tools for nitrate sources in groundwater and discusses methods for nitrate removal. Possible solutions to overcome the limitations of these methods are also proposed.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Polymer Science
Williams Chiari, Rizki Damayanti, Harapan Harapan, Kana Puspita, Saiful Saiful, Rahmi Rahmi, Diva Rayyan Rizki, Muhammad Iqhrammullah
Summary: This report presents the trend of polymer research related to the COVID-19 pandemic through bibliometric analysis, focusing on personal protective equipment (PPE) and waste management. The field is primarily concentrated in the United States and China, with the Ministry of Education of China and the National Science Foundation of China being the most active institution and prominent funding source, respectively.
Article
Environmental Sciences
Otman El Mountassir, Mohammed Bahir, Driss Ouazar, Abdelghani Chehbouni, Paula M. Carreira
Summary: The study evaluated the quality of groundwater in Morocco's coastal region and found that 22% of groundwater samples exceeded the recommended nitrate level. 44.8% of samples were classified as clean water suitable for irrigation based on NPI, while 37.9% were identified as low polluted based on GPI. It was discovered that the nitrate pollution mainly originated from the large amounts of nitrogen fertilizer used in agricultural activities.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Augustine Appiah, Zhigang Li, Elvis Kwame Ofori, Clement Mintah
Summary: A bibliometric analysis was conducted to understand the current state and development trend of mine safety research. The findings indicate that coal dust pollution has a significant impact on the environment and research projects prioritize technology innovation over safety norms. Developed countries dominate the literature, leaving a gap in knowledge in developing nations. Future research should focus on creating safer policies, effective safety mines, and solutions to dust pollution and human errors.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Lina Davuliene, Dalia Jasineviciene, Inga Garbariene, Jelena Andriejauskiene, Vidmantas Ulevicius, Steigvile Bycenkiene
Summary: European emissions data over the past 4 decades have been analyzed through the EMEP program, showing a decrease in S- and N- species concentrations, except for nitrate. The study on a coastal background site in Lithuania revealed significant reductions in sulfur dioxide and sulfate concentrations, with an increase in sea-related sulfate particles. Additionally, the analysis indicated a stabilization of sulfur dioxide levels since 2015 and the dominance of sulfate over sulfur dioxide concentrations in recent years, suggesting a shift towards long-range transport of sulfur.
ATMOSPHERIC RESEARCH
(2021)
Article
Environmental Sciences
Haichao Wang, Bin Yuan, E. Zheng, Xiaoxiao Zhang, Jie Wang, Keding Lu, Chenshuo Ye, Lei Yang, Shan Huang, Weiwei Hu, Suxia Yang, Yuwen Peng, Jipeng Qi, Sihang Wang, Xianjun He, Yubin Chen, Tiange Li, Wenjie Wang, Yibo Huangfu, Xiaobing Li, Mingfu Cai, Xuemei Wang, Min Shao
Summary: Field measurements in the Pearl River Delta showed higher concentrations of ClNO2 and N2O5 in urban areas compared to background marine regions. Nighttime ClNO2 formation was limited by N2O5 uptake, and particulate chloride was mainly attributed to anthropogenic emissions rather than sea salt particles. Model simulations indicated that ClNO2 chemistry had a minor impact on atmospheric oxidation, with relatively higher contributions observed in urban air masses.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
David A. Olson, Theran P. Riedel, John H. Offenberg, Michael Lewandowski, Russell Long, Tadeusz E. Kleindienst
Summary: This paper uses a relevance vector machine (RVM) model to quantify ozone (O3) and nitrogen oxides (NOx) formation under wintertime conditions. The RVMs have high correlation coefficients with measured concentrations and are constructed from observed data, using only a subset to approximate the entire dataset. The RVMs were used as a predictive model to assess the importance of individual precursors in forming O3 and NO2.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Engineering, Civil
Yuandong Deng, Xueyan Ye, Xinqiang Du
Summary: Nitrate contamination of shallow groundwater in agricultural intensification regions is a global issue that affects food security, human health, and water ecology. Developing a prediction model to assess nitrate contamination is crucial for protecting groundwater resources. This study used hydrochemical data from Northeast China to group the dataset based on land use type, vadose zone type, and thickness. Machine learning models were then employed, and the advantages and disadvantages of different models were assessed. The results showed that the integration of the radial basis function artificial neural network (RBF ANN) model and principal components regression (PCR) model provided accurate predictions and improved interpretability. The study also identified the factors that impact nitrate concentrations in groundwater and highlighted the importance of both external and internal driving factors.
JOURNAL OF HYDROLOGY
(2023)
Article
Multidisciplinary Sciences
Ye Ye, Zhe Li, Shichao Ding, Jiaju Fu, Hongzhi Liu, Wenlei Zhu
Summary: This paper investigates the recent progress of electrocatalytic C-N coupling reactions and explores the potential of coupling CO2 reduction with nitrogen (N)-pollutants reduction. The technical concerns for scale-up applications of C-N coupling electrocatalysis are discussed, and the opportunities and challenges of applying C-N coupling electrocatalysis are prospectively analyzed.
Article
Environmental Sciences
Hongyu Zhang, Xu Han, Guangcai Wang, Hairu Mao, Xianglong Chen, Ling Zhou, Dandan Huang, Fan Zhang, Xin Yan
Summary: This study used self-organizing map (SOM) and principal component analysis (PCA) to characterize the spatial variability and driving factors of shallow groundwater hydrochemistry in Yan'an, Northwest China. The results identified four clusters of groundwater, including heavily oil-contaminated, slightly oil-contaminated, least-polluted, and NO3- contaminated. Oil-related water intrusion and agricultural activities were identified as the main driving factors for groundwater pollution in the area, while water-rock interactions also influenced the chemical composition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Xinyuan Liu, Chaoyi Guo, Yazhen Wu, Chen Huang, Keding Lu, Yuanhang Zhang, Lei Duan, Miaomiao Cheng, Fahe Chai, Fengqiao Mei, Hancheng Dai
Summary: China has made significant efforts to control air pollution and has recently committed to ambitious climate targets. This study conducted a bibliometric review of over 100 published studies to examine the cost and benefit analysis of air pollution control in China. The findings highlight the need for long-term policy simulation and collaboration across regions and sectors to ensure sustainable development and improve air quality. The paper provides decision-makers with important information and knowledge gaps in air pollution control strategies in China.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Review
Environmental Sciences
Yue Gao, Keding Lu, Yuanhang Zhang
Summary: Peroxy radicals (RO2) formed during the oxidation of volatile organic compounds have a significant impact on atmospheric oxidation reactions. The measurement of RO2, especially distinct species, is crucial for understanding atmospheric chemistry mechanisms. Various spectroscopy and mass spectrometry methods have been developed to study RO2 in detail. This review article discusses the technologies for speciated detection of RO2 radicals, their applications, comparison of techniques, and proposes future research directions.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Review
Environmental Sciences
Yanhui Liu, Jiayin Li, Yufang Ma, Ming Zhou, Zhaofeng Tan, Limin Zeng, Keding Lu, Yuanhang Zhang
Summary: The atmospheric chemical mechanism plays a crucial role in airshed models for studying chemical behaviors and impacts. Various mechanisms, such as MCM, CBM, SAPRC, and RACM, have been developed for different research purposes. This article summarizes the development and applications of these mechanisms, compares their compositions and methods, and examines how they treat radicals in box model simulations. CBM can effectively reproduce urban pollution events at a lower cost compared to SAPRC and RACM, while RACM provides a detailed description of radicals and ozone production. SAPRC07 has lower photolysis rates for some oxygenated compounds, leading to an underestimation of radical levels. MCM is an explicit chemical mechanism that describes primary pollutants and oxidation products in detail but is rarely used in regional model simulations due to its large size. Results from box model case studies show that all mechanisms accurately describe the behavior of radicals and the production of ozone. However, CBM and SAPRC tend to underestimate radical levels, resulting in lower ozone production values. MCM and RACM are commonly used in box model studies, while CBM and SAPRC are preferred in regional simulations.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Haichao Wang, Keding Lu, Zhaofeng Tan, Xiaorui Chen, Yuhan Liu, Yuanhang Zhang
Summary: In China, over the past decade, fine particulate matter (PM) pollution has been significantly reduced due to strict emission control measures, but particulate nitrate (pNO(3)(-)) continues to increase. This review summarizes the progress in characterizing pNO(3)(-) pollution, understanding nitrate formation mechanisms, and proposing control strategies in China. The spatial and temporal distributions of pNO(3)(-) are summarized, and the importance of atmospheric oxidation capacity and ammonia in pNO(3)(-) formation is discussed. The challenges and unresolved questions in pNO(3)(-) pollution control in China are outlined.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Weijun Pan, Sunling Gong, Keding Lu, Lei Zhang, Shaodong Xie, Yuhan Liu, Huabing Ke, Xiaoling Zhang, Yuanhang Zhang
Summary: A multiscale analysis was conducted to investigate the impacts of large-scale circulation types and local-scale key weather elements on complex air pollutants in China. An emission-driven Observation-based Box Model (e-OBM) was developed to study the impact mechanisms and assess the effects of emission control in four cities. The results showed that meteorology was the dominant driver for the trend of ozone (O-3) and the current emission reductions were not enough to mitigate O-3 pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yanting Qiu, Zhijun Wu, Ruiqi Man, Taomou Zong, Yuechen Liu, Xiangxinyue Meng, Jingchuan Chen, Shiyi Chen, Suxia Yang, Bin Yuan, Mijung Song, Changhyuk Kim, Junyoung Ahn, Limin Zeng, Jiyi Lee, Min Hu
Summary: This study aimed to understand haze formation in East Asia during winter by measuring the aerosol composition in Beijing and Seoul. The results showed similar pollution situations, with nitrate dominating the inorganic components in both cities. The study emphasized the importance of local secondary aerosol formation for atmospheric PM pollution in East Asian megacities.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Yujue Wang, Zeyu Feng, Qi Yuan, Dongjie Shang, Yuan Fang, Song Guo, Zhijun Wu, Chao Zhang, Yang Gao, Xiaohong Yao, Huiwang Gao, Min Hu
Summary: This study conducted a comparative investigation to illustrate the sources and key environmental factors of WSOC formation under different atmospheric conditions. The results obtained from five field campaigns at different inland sites and a coastal site during different seasons were summarized. The formation of WSOC was influenced by atmospheric oxidants, aerosol liquid water, and ambient relative humidity, with their roles varying in different atmospheres.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Youlang Zhang, Haichao Wang, Xiao Lu, Lei Li, Yuanping He, Haolin Wang, Guowen He, Cheng He, Jie Wang, Shaojia Fan
Summary: By using the Empirical Orthogonal Functions method, this study identifies two dominant patterns of ozone pollution in China. It reveals a close relationship between widespread pollution processes in China and high-pressure and low-pressure anomalies in North China and the western Pacific, respectively. The first pattern is associated with a high-pressure anomaly in North China, leading to high-temperature and low-humidity anomalies that enhance photochemical reactions and elevate ozone levels. The second pattern is related to the low-pressure anomaly in the western Pacific, resulting in uniformly high ozone pollution in the south, especially in the Yangtze River Delta, the middle reaches of the Yangtze River, and the Pearl River Delta.
ATMOSPHERIC RESEARCH
(2023)
Article
Engineering, Environmental
Wanshan Tan, Haolin Wang, Jiayin Su, Ruize Sun, Cheng He, Xiao Lu, Jintai Lin, Chaoyang Xue, Haichao Wang, Yiming Liu, Lei Liu, Lin Zhang, Dianming Wu, Yujing Mu, Shaojia Fan
Summary: Despite the reduction in fuel combustion emissions of nitrogen oxides (NOx) driven by policies, surface ozone concentrations in China have been increasing since 2013. This study examines the role of soil reactive nitrogen (N-r) emissions, including NOx and nitrous acid (HONO), in the ozone increase over the North China Plain (NCP) from 2013 to 2019. The results show that soil N-r emissions have contributed significantly to the ozone enhancement, and there is a competition effect between combustion and soil N-r sources on ozone production in the NCP region. The increase in soil N-r ozone contribution is driven by the concurrent decreases in fuel combustion NOx emissions, emphasizing the importance of considering the interaction between anthropogenic and biogenic sources in ozone mitigation strategies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Hejun Hu, Haichao Wang, Keding Lu, Jie Wang, Zelong Zheng, Xuezhen Xu, Tianyu Zhai, Xiaorui Chen, Xiao Lu, Wenxing Fu, Xin Li, Limin Zeng, Min Hu, Yuanhang Zhang, Shaojia Fan
Summary: This study investigated the level, composition, and seasonal variation of nitrate radical (NO3) reactivity (kNO(3)) towards volatile organic compounds (VOCs) using 1-year VOC observation data in urban Beijing in 2019. The results showed a wide range of hourly kNO(3) values and significant seasonal differences in NO3 reactivity towards VOCs. Isoprene and styrene were identified as the major contributors, with isoprene dominating in spring, summer, and autumn, and styrene dominating in winter. Monoterpenes were found to potentially account for a large fraction of kNO(3). The study also established parameterization schemes for predicting reactivity and revealed the dominance of NO3 in nocturnal VOC oxidation in Beijing. The findings contribute to our understanding of atmospheric oxidation and pollution.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Environmental Sciences
Chengzhi Xing, Shiqi Xu, Yuhang Song, Cheng Liu, Yuhan Liu, Keding Lu, Wei Tan, Chengxin Zhang, Qihou Hu, Shanshan Wang, Hongyu Wu, Hua Lin
Summary: Ship-based MAX-DOAS measurements were conducted in the marginal seas of China to study the vertical profiles of aerosol, NO2, and HONO. Five hot spots with enhanced NO2 VCDs were observed in different regions. The study explored the impacts of RH, temperature, and aerosol on the heterogeneous reaction of NO2 to form HONO. It also provided insights into the distribution, transformation, and environmental effects of tropospheric HONO.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Environmental Sciences
Lizi Tang, Min Hu, Dongjie Shang, Xin Fang, Jianjiong Mao, Wanyun Xu, Jiacheng Zhou, Weixiong Zhao, Yaru Wang, Chong Zhang, Yingjie Zhang, Jianlin Hu, Limin Zeng, Chunxiang Ye, Song Guo, Zhijun Wu
Summary: This study conducted intensive measurements at Nam Co station on the Tibetan Plateau and found that new particle formation events were frequent during the summer monsoon season, mostly driven by organic involvement in the nucleation process. The occurrence of new particle formation events was limited during the pre-monsoon season compared to the monsoon season. These results emphasize the importance of considering the seasonal effect of new particle formation when simulating aerosol and cloud condensation nuclei quantities in the high-altitude atmosphere.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Yan Zheng, Ruqian Miao, Qi Zhang, Yaowei Li, Xi Cheng, Keren Liao, Theodore K. Koenig, Yanli Ge, Lizi Tang, Dongjie Shang, Min Hu, Shiyi Chen, Qi Chen
Summary: The chemical differences between submicron (PM1) and fine particles (PM2.5) contribute to different adverse health effects, emphasizing the need for understanding their size-resolved composition. Extensive online measurements in Beijing across seasons revealed that traffic- and cooking-related organic aerosols (OA) accounted for 20%-30% of PM2.5 OA mass, with insignificant variations throughout the year. Secondary OA factors contributed 59%-73% of PM2.5 OA mass. The mass distributions of particulate components varied greatly between PM1 and PM2.5 and across seasons. Heterogeneous uptake and aqueous processing played important roles in distributing secondary organic aerosols in the supermicron mode in polluted areas.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Tianyu Zhai, Keding Lu, Haichao Wang, Shengrong Lou, Xiaorui Chen, Renzhi Hu, Yuanhang Zhang
Summary: This study focuses on particulate nitrate in China and its impact on human health, air quality, and climate. The research found that heavy nitrate pollution occurs not only in winter but also in summer in eastern China. A strategy targeting both ozone and nitrate pollution was proposed for mitigation during summertime in this region.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Geosciences, Multidisciplinary
Y. C. Liu, Z. J. Wu, Y. T. Qiu, P. Tian, Q. Liu, Y. Chen, M. Song, M. Hu
Summary: This study explores the relationship between the mass fraction of inorganic compounds and the liquid-phase-transition threshold relative humidity (RHthreshold) in urban aerosol particles. The results reveal a negative correlation between RHthreshold and the mass fraction of nitrate, suggesting that higher nitrate content leads to a lower RHthreshold. Furthermore, it is observed that an increased nitrate fraction allows particles to exist in a liquid state at lower RH, potentially playing a significant role in the formation of secondary aerosols through multiphase reactions.
GEOPHYSICAL RESEARCH LETTERS
(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)
