Article
Geosciences, Multidisciplinary
Shengqiang Zhu, James Poetzscher, Juanyong Shen, Siyu Wang, Peng Wang, Hongliang Zhang
Summary: This study utilized comprehensive satellite observations and chemical transport modeling to investigate O-3 variations in China during the COVID-19 pandemic. The results showed significant increases in O-3 levels in the North China Plain and Yangtze River Delta, attributed to enhanced atmospheric oxidation capacity and reduced NOx emissions. The shift in O-3 formation mechanisms during lockdown suggests the need for balanced NOx and VOC emissions control policies in the future.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Optics
Cheng Liu, Qihou Hu, Chengxin Zhang, Congzi Xia, Hao Yin, Wenjing Su, Xiaohan Wang, Yizhou Xu, Zhiguo Zhang
Summary: Numerous studies have investigated the changes in air quality during the COVID-19 pandemic using satellite observations. However, there has been no research conducted using Chinese satellite instruments. This study successfully retrieved global gaseous pollutants from the Chinese Environmental Trace Gases Monitoring Instrument (EMI) by optimizing remote sensing algorithms. The results showed variations in air pollutant emissions and the effectiveness of measures taken in different cities.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Melanie S. Hammer, Aaron van Donkelaar, Randall V. Martin, Erin E. McDuffie, Alexei Lyapustin, Andrew M. Sayer, N. Christina Hsu, Robert C. Levy, Michael J. Garay, Olga V. Kalashnikova, Ralph A. Kahn
Summary: The study examines the effects of lockdown measures on PM2.5 concentrations during the COVID-19 pandemic, finding significant reductions in China and slight changes in Europe and North America. These changes are attributed to a combination of meteorological conditions and emission reductions, primarily from transportation sources. Regional differences in the sensitivity of PM2.5 to emission sources are demonstrated in this work.
Article
Geosciences, Multidisciplinary
Yi Ming, Pu Lin, Fabien Paulot, Larry W. Horowitz, Paul A. Ginoux, V Ramaswamy, Norman G. Loeb, Zhaoyi Shen, Clare E. Singer, Ryan X. Ward, Zhibo Zhang, Nicolas Bellouin
Summary: The COVID-19 pandemic led to significant reductions in aerosol emissions and reflected sunlight over the East Asian Marginal Seas in March 2020. About one-third of the observed anomalies can be attributed to pandemic-related emission reductions, while the rest are influenced by weather variability and long-term emission trends. The current observational and modeling capabilities are crucial for monitoring, understanding, and predicting the radiative forcing and climate impacts of the ongoing crisis.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Sarit Agami, Uri Dayan
Summary: The COVID-19 pandemic resulted in a decrease in air pollution worldwide, with emissions reducing during lockdown compared to the same period in 2019. While NOx decreased significantly, ground-level ozone increased, behaving similarly to the ozone weekend effect. Assessing the impact of lockdown, along with meteorological conditions, increased the explanation of pollution emission variation to 47%.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Wolfgang Steinbrecht, Dagmar Kubistin, Christian Plass-Duelmer, Jonathan Davies, David W. Tarasick, Peter von der Gathen, Holger Deckelmann, Nis Jepsen, Rigel Kivi, Norrie Lyall, Matthias Palm, Justus Notholt, Bogumil Kois, Peter Oelsner, Marc Allaart, Ankie Piters, Michael Gill, Roeland Van Malderen, Andy W. Delcloo, Ralf Sussmann, Emmanuel Mahieu, Christian Servais, Gonzague Romanens, Rene Stubi, Gerard Ancellet, Sophie Godin-Beekmann, Shoma Yamanouchi, Kimberly Strong, Bryan Johnson, Patrick Cullis, Irina Petropavlovskikh, James W. Hannigan, Jose-Luis Hernandez, Ana Diaz Rodriguez, Tatsumi Nakano, Fernando Chouza, Thierry Leblanc, Carlos Torres, Omaira Garcia, Amelie N. Rohling, Matthias Schneider, Thomas Blumenstock, Matt Tully, Clare Paton-Walsh, Nicholas Jones, Richard Querel, Susan Strahan, Ryan M. Stauffer, Anne M. Thompson, Antje Inness, Richard Engelen, Kai-Lan Chang, Owen R. Cooper
Summary: Throughout spring and summer 2020, ozone levels in the northern extratropics were unusually low in the free troposphere. The observed anomaly was primarily attributed to emissions reductions caused by the COVID-19 crisis.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Energy & Fuels
Chao He, Lu Yang, Bofeng Cai, Qingyuan Ruan, Song Hong, Zhen Wang
Summary: The study found that during the period from P1 to P2 in 2020, the largest change in NOx operating vent numbers occurred in North China, with a relative change rate of -33.84%; while East China experienced the largest decrease during the periods of P1 and P3, with approximately -32.72% decrease. The mining industry, manufacturing industry, power, heat, gas, and water production and supply industry, as well as the wholesale and retail industry, were the most heavily influenced sectors. Overall, the operating vent numbers of key polluting enterprises in China decreased by 24.68%, and the standardized NOx (w)5-day decreased by an average of -9.54%.
Article
Multidisciplinary Sciences
Sun-Seon Lee, Jung-Eun Chu, Axel Timmermann, Eui-Seok Chung, June-Yi Lee
Summary: The COVID-19 pandemic led to a significant reduction in anthropogenic aerosol emissions, resulting in observable impacts on regional weather and climate, particularly in China. Studies show that reducing anthropogenic aerosol emissions not only causes surface warming and increased cloud formation, but also reveals a nonlinear sensitivity of regional atmospheric conditions to chemical/radiative perturbations.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Zhongfeng Qiu, Md. Arfan Ali, Janet E. Nichol, Muhammad Bilal, Pravash Tiwari, Birhanu Asmerom Habtemicheal, Mansour Almazroui, Sanjit Kumar Mondal, Usman Mazhar, Yu Wang, Sajib Sarker, Farhan Mustafa, Muhammad Ashfaqur Rahman
Summary: This study investigated the spatiotemporal changes in air pollution during the COVID-19 lockdown period in major cities of Bangladesh. The findings showed significant reductions in Aerosol Optical Depth (AOD), PM2.5, PM10, and NO2 levels during the strict lockdown, indicating improved air quality. However, variations were observed in AOD and NO2 levels during the partial lockdown period.
Article
Environmental Sciences
Oscar Peralta, Abraham Ortinez-Alvarez, Ricardo Torres-Jardon, Manuel Suarez-Lastra, Telma Castro, Luis Gerardo Ruiz-Suarez
Summary: During the COVID-19 pandemic lockdown, emissions of primary criteria pollutants in the Mexico City Metropolitan Area were significantly reduced, leading to a shift in the ozone formation zone from a VOC sensitive region to a NOx sensitive region. The study found the impacts of contingent short-term emissions control actions on ozone formation and proposed guidelines to enhance emission control policies in the post-COVID-19 era.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jipeng Qi, Ziwei Mo, Bin Yuan, Shan Huang, Yibo Huangfu, Zelong Wang, Xiaobing Li, Suxia Yang, Wenjie Wang, Yiming Zhao, Xuemei Wang, Weiwen Wang, Kexuan Liu, Min Shao
Summary: During the COVID-19 lockdown in China, the average concentrations of NOX and VOCs decreased significantly while a slight increase in ozone concentration was observed in Dongguan. The rise of ozone was mainly due to a substantial increase at night and a small reduction in the daytime, suggesting weakened photochemistry and reduced local ozone production during the lockdown.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Shibao Wang, Yun Ma, Zhongrui Wang, Lei Wang, Xuguang Chi, Aijun Ding, Mingzhi Yao, Yunpeng Li, Qilin Li, Mengxian Wu, Ling Zhang, Yongle Xiao, Yanxu Zhang
Summary: The study utilized low-cost sensors and novel calibration algorithms to explore air pollution in the road network of Nanjing on a hyperlocal scale, revealing major sources of pollutants including traffic, industrial emissions, and cooking fumes. The concentrations of CO and NO2 showed a pattern across different road types, reflecting traffic volume, while the O-3 concentrations were influenced by the titration effect of NOx.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Chenglei Pei, Weiqiang Yang, Yanli Zhang, Wei Song, Shaoxuan Xiao, Jun Wang, Jinpu Zhang, Tao Zhang, Duohong Chen, Yujun Wang, Yanning Chen, Xinming Wang
Summary: The study found that during the COVID-19 lockdown, ambient VOC levels in Guangzhou decreased by 19.1%, primarily due to reductions in industrial emissions, diesel exhaust, and gasoline-related emissions. The decrease in industrial emissions largely explained the reductions in ambient levels of reactive alkenes and aromatics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yiwen Hu, Zengliang Zang, Xiaoyan Ma, Yi Li, Yanfei Liang, Wei You, Xiaobin Pan, Zhijin Li
Summary: Emission inventories are essential for modeling studies and pollution control. However, traditional emission inventories are usually outdated and cannot accurately reflect actual emission changes. In this study, a four-dimensional variational assimilation system was used to optimize sulfur dioxide emissions during the early period of the COVID-19 pandemic in China. The results showed that the optimized emissions better reflected the impact of lockdown measures on emissions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Maria Cazorla, Edgar Herrera, Emilia Palomeque, Nicolas Saud
Summary: The COVID-19 lockdown in Quito led to a shift in the photochemical regime of ozone production, mainly due to a dramatic decrease in primary precursors such as NO and CO. Using a chemical box model, it was found that ozone production rates increased after the lockdown, possibly attributed to the reduction in NOx levels and unchanged VOCs.
ATMOSPHERIC POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Xue Ni, Yuepeng Pan, Peng Shao, Shili Tian, Zheng Zong, Mengna Gu, Bowen Liu, Jin Liu, Jing Cao, Qian Sun, Yuesi Wang, Changsheng Jiang
Summary: The study investigated the size-resolved aerosol organic carbon (OC) and water-soluble OC (WSOC) in urban Beijing between 2013 and 2018. Results showed seasonal variations and size distribution differences in OC and WSOC concentrations, with insights into the formation processes of WSOC. This research provides important implications for air pollution control in Beijing and surrounding regions.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Zehui Liu, Mi Zhou, Youfan Chen, Dan Chen, Yuepeng Pan, Tao Song, Dongsheng Ji, Qi Chen, Lin Zhang
Summary: Recent Chinese air pollution actions have significantly lowered PM2.5 levels in North China through controlling SO2 and NOx emissions, but unregulated NH3 emissions pose a challenge. Reductions in NH3 emissions can greatly mitigate PM2.5 pollution. NH3 emission control should be considered in conjunction with SO2 and NOx emission controls when designing strategies to mitigate PM2.5 pollution.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Chemistry, Analytical
Pengfei Han, Han Mei, Di Liu, Ning Zeng, Xiao Tang, Yinghong Wang, Yuepeng Pan
Summary: This study evaluated the performance of four electrochemical air quality sensors and different calibration models in Beijing over a 12-month period. The results showed that LSTM models outperformed random forest and linear methods in improving the accuracy of pollutant measurements, especially for O-3 and NO2.
Article
Environmental Sciences
Xia Li, Naifang Bei, Bo Hu, Jiarui Wu, Yuepeng Pan, Tianxue Wen, Zirui Liu, Lang Liu, Ruonan Wang, Guohui Li
Summary: Stringent mitigation measures have reduced wintertime fine particulate matter (PM2.5) concentrations by 42.2% in the Beijing-Tianjin-Hebei (BTH) region from 2013 to 2018, but severe PM pollution still frequently engulfs the region. The contributions of nitrogen oxides (NOX) emissions mitigation to nitrate and PM2.5 concentrations remains elusive, with simulations showing a 50% reduction in NOX emissions actually increasing PM2.5 concentrations. Mitigation of NH3 emissions is identified as the priority measure to effectively lower nitrate and PM2.5 concentrations in the BTH under current conditions.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Yuepeng Pan, Jin Liu, Lan Zhang, Jing Cao, Jiabao Hu, Shili Tian, Xingyu Li, Wen Xu
Summary: Analyzing rain samples collected in a rural area of the North China Plain from 2016 to 2020, it was found that higher concentrations of toxic heavy metals and metalloids (MMs) in atmospheric deposition were associated with polluted areas where western and southern air masses passed through. The annual deposition flux of MMs showed a decreasing trend, indicating that clean air actions implemented in recent years have been effective in reducing MMs from anthropogenic emissions. Additionally, a receptor model identified five major sources contributing to the chemical components in bulk depositions, with future strategies recommended to target emissions from combustion and soil/dust in the region to protect agriculture from atmospheric MMs depositions.
Article
Meteorology & Atmospheric Sciences
Yuexin He, Yuepeng Pan, Mengna Gu, Qian Sun, Qianqian Zhang, Renjian Zhang, Yuesi Wang
Summary: A study using machine learning techniques found that ammonia concentrations in Chinese urban and rural areas significantly decreased during the 2020 Spring Festival, with a more obvious reduction in urban areas compared to rural areas. Future ammonia emission control strategies should focus on emissions from the transportation, industrial, and residential sectors.
ATMOSPHERIC RESEARCH
(2021)
Article
Environmental Sciences
Linlin Song, Wendell W. Walters, Yuepeng Pan, Zhengjie Li, Mengna Gu, Yihang Duan, Xuemei Lu, Yunting Fang
Summary: Vehicular exhaust is an important ammonia emission source in urban areas, and this study used two active sampling techniques to collect NHx in a tunnel in Shenyang, China. The collected NH3 showed a slight difference in δ15N values between the two samplers, possibly due to difficulties in NHx speciation. Both samplers were able to characterize the δ15N-NHx effectively in the ambient environment, with the particle - gas sampling approach performing better in elevated NH3 concentration environments.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Shuanghong Yang, Zirui Liu, Petri S. Clusius, Yongchun Liu, Jianan Zou, Yuan Yang, Shuman Zhao, Guozhong Zhang, Zhongjun Xu, Zhiqiang Ma, Yang Yang, Jie Sun, Yuepeng Pan, Dongsheng Ji, Bo Hu, Chao Yan, Michael Boy, Markku Kulmala, Yuesi Wang
Summary: The majority of observed NPF events are likely attributed to amine-enhanced sulfuric acid nucleation, while a smaller portion may be due to the H2SO4-NH3 clustering mechanism. In the particle growth process, sulfuric acid dominates in the early stages, but as particles grow larger, the condensation of organic compounds strengthens and dominates growth to climatically relevant sizes.
ATMOSPHERIC RESEARCH
(2021)
Article
Environmental Sciences
Meichen Jiang, Yuexin He, Conghe Song, Yuepeng Pan, Tong Qiu, Shufang Tian
Summary: The study analyzed the vegetation dynamics of the BTH region, finding that vegetation greening mainly occurred in mountainous areas where forests and grasslands dominate, while vegetation browning was more common in areas with frequent human activity. Temperature was identified as the most influential climate factor, while land cover played a dominant role in anthropogenic factors. The Random Forest model was utilized to disaggregate the effects of climate and human activity on vegetation dynamics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Yuepeng Pan, Bowen Liu, Jing Cao, Jin Liu, Shili Tian, Enzai Du
Summary: This study compiled global atmospheric phosphorus deposition data and found an increase in P deposition in Europe and Asia from 2001 to 2020, likely due to increasing agricultural emissions and fossil fuel combustion sources. These findings emphasize the need to quantify the impacts of elevated P deposition from anthropogenic emissions on long-term ecosystem development.
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Jiabao Hu, Yuepeng Pan, Yuexin He, Xiyuan Chi, Qianqian Zhang, Tao Song, Weishou Shen
Summary: The COVID-19 lockdowns globally reduced human-related emissions, leading to an improvement in air quality, but the impact of emissions changes on pollutant concentrations may be masked by meteorological conditions. Data from 35 sites in Beijing showed a significant decrease in real air pollutant concentrations during the lockdown period, although episodic haze events still occurred.
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS
(2021)
Article
Environmental Sciences
Zan Liu, Yuepeng Pan, Tao Song, Bo Hu, Lili Wang, Yuesi Wang
Summary: This study presented the first eddy covariance measurements of ozone flux at different heights in a Chinese forest, revealing that ozone flux and deposition velocity were higher above the canopy compared to below, with stomatal uptake playing an important role in ozone deposition. Ozone deposition velocity increased with air temperature, relative humidity, photosynthetically active radiation, and friction velocity, but tended to plateau when these meteorological factors exceeded their optimal values.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jiayun Li, Liming Cao, Wenkang Gao, Lingyan He, Yingchao Yan, Yuexin He, Yuepeng Pan, Dongsheng Ji, Zirui Liu, Yuesi Wang
Summary: The study revealed that the seasonal variations in submicron particles at the Xinglong background mountainous site in the NCP are significantly influenced by aging processes and regional transport, with an increased contribution of aerosol nitrate in summer highlighting the critical importance of regional reductions in nitrogen oxide emissions for alleviating nitrate-dominated haze events over the NCP.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Lei Kong, Xiao Tang, Jiang Zhu, Zifa Wang, Jianjun Li, Huangjian Wu, Qizhong Wu, Huansheng Chen, Lili Zhu, Wei Wang, Bing Liu, Qian Wang, Duohong Chen, Yuepeng Pan, Tao Song, Fei Li, Haitao Zheng, Guanglin Jia, Miaomiao Lu, Lin Wu, Gregory R. Carmichael
Summary: The study presents a 6-year-long high-resolution Chinese air quality reanalysis dataset that contains surface fields of six conventional air pollutants in China from 2013 to 2018. The dataset, obtained through assimilation of surface observations, exhibits excellent performance in reproducing the magnitude and variability of surface air pollutants.
EARTH SYSTEM SCIENCE DATA
(2021)
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)
