Article
Environmental Sciences
Lin Li, Jianlin Hu, Jingyi Li, Kangjia Gong, Xueying Wang, Qi Ying, Momei Qin, Hong Liao, Song Guo, Min Hu, Yuanhang Zhang
Summary: A source-oriented Community Multiscale Air Quality model was used to study the contributions of different sources to ground-level fine particulate matter (PM2.5) and ozone (O-3) over the Yangtze River Delta region. Results showed that industry and transportation are the major sources of O-3 and PM2.5 in the region, with industry contributing the most to the total mass of PM2.5. Additionally, during high pollution episodes, industry plays a larger role in PM2.5 pollution, while biogenic and open burning contributions are more important in high O-3 episodes.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Feng Hu, Pinhua Xie, Xin Tian, Jin Xu, Ang Li, Aurelia Lupascu, Tim Butler, Zhaokun Hu, Yinsheng Lv, Zhidong Zhang, Jiangyi Zheng
Summary: The Yangtze River Delta frequently experiences ozone pollution events, and the factors influencing these events include weather patterns and regional ozone transport. By studying ozone source attribution and analyzing weather patterns, the mechanisms and contributors have been uncovered. This research is significant for understanding the ozone transport mechanism in the Yangtze River Delta and optimizing measures for controlling heavy ozone pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Trang Tran, Naresh Kumar, Eladio Knipping
Summary: The sensitivity of ozone to emission changes in urban environments was investigated using WRF and CAMx simulations for the NYC metropolitan area based on data from the Long Island Sound Tropospheric Ozone Study in 2018. The simulations showed that observational nudging significantly reduced the positive biases in wind speed. Adjusting NOx emissions based on previous work corrected the large positive biases in NO2 concentrations in NYC. The improved modeling platform demonstrated reliable performance for regulatory applications.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Keqin Tang, Haoran Zhang, Weihang Feng, Hong Liao, Jianlin Hu, Nan Li
Summary: Surface ozone (O-3) in the Yangtze River Delta (YRD) region of China has shown an increasing trend in the past few years, but the rate of increase varies significantly on different years and cities. Multiple air quality observations and numerical simulation revealed that the main driving factors behind the ozone increase are volatile organic compounds (VOCs) and nitrogen oxides (NOx). The aggravating trend of ozone worsened after the government's air pollution control action plan mainly targeted PM2.5, but it has been alleviated after 2018 due to the coordinated prevention and control of both PM2.5 and ozone.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Guangqiang Zhou, Zhongqi Yu, Yuanhao Qu
Summary: The study found that local emissions have a significant impact on PM2.5 concentration in the Yangtze River Delta region, while mutual inner-regional transport among provinces also plays a role. Controlling local emissions and reducing inter-provincial transport can effectively reduce the rate of PM2.5 pollution.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Jingyi Li, Na Zhang, Peng Wang, Minsu Choi, Qi Ying, Song Guo, Keding Lu, Xionghui Qiu, Shuxiao Wang, Min Hu, Yuanhang Zhang, Jianlin Hu
Summary: The study found that multiphase chemistry of chlorine has significant impacts on the oxidation capacity, ozone, and particulate matter in the Yangtze River Delta region. Ozone is enhanced in some regions while particulate matter increases mainly due to higher levels of chloride, ammonium, organic aerosols, and sulfate. Nitrate exhibits heterogeneous variations in different areas.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Xin Zhang, Qiang Ma, Wanghui Chu, Miao Ning, Xiaoqiu Liu, Fanjie Xiao, Ningning Cai, Zhijun Wu, Gang Yan
Summary: This study conducted simultaneous field experiments on air pollutants in Suzhou, a typical urban area in the Yangtze River Delta region of China, in 2022, to analyze the mechanism of ozone (O3) formation and its precursor sources. The results showed that in-situ formation contributed 20.8% of the O3 concentration in the warm season. Various O3 precursors increased on pollution days, with anthropogenic VOCs having the highest sensitivity to O3 formation. The study also calculated the contribution of different sources to O3 formation and highlighted the importance of controlling VOCs evaporative emissions during O3 pollution episodes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tian Han, Xiaomin Hu, Jing Zhang, Wenhao Xue, Yunfei Che, Xiaoqing Deng, Lihua Zhou
Summary: The problem of surface ozone pollution in China is a major concern, especially in the Beijing-Tianjin-Hebei region. The high concentration of ozone adversely affects crop growth and leads to significant yield losses. This study proposes a new method to establish a high-precision ozone concentration dataset and estimates the crop yield losses caused by ozone pollution in the BTH region.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Pengfei Wang, Peng Wang, Kaiyu Chen, Jun Du, Hongliang Zhang
Summary: Ground-level ozone is a growing concern as an air pollutant due to its detrimental effects on human health and vegetation growth. Meteorological conditions play a crucial role in the formation, diffusion, transformation, and transport of ozone in the atmosphere. This study demonstrated significant improvements in ozone prediction accuracy by using ensemble meteorological inputs compared to traditional single meteorology inputs in chemical transport models.
Article
Meteorology & Atmospheric Sciences
Sijie Ge, Sujing Wang, Qiang Xu, Thomas Ho
Summary: This study quantitatively characterized ozone pollution in the BPA area of Texas and found that local emission sources play a major role in local high ozone events, with contributions also coming from surrounding regions. Elevated point emissions and on-road emissions were identified as major anthropogenic sources for local ozone formations.
ATMOSPHERIC RESEARCH
(2021)
Article
Engineering, Environmental
Yao Gu, Baoshuang Liu, He Meng, Shaojie Song, Qili Dai, Laiyuan Shi, Yinchang Feng, Philip K. Hopke
Summary: Conventional source apportionment of ambient volatile organic compounds (VOCs) has not been effectively supporting secondary pollution control development due to its lack of consideration for ozone (O3) and secondary organic aerosol (SOA) formation. This study developed a consumed VOC source apportionment approach and found that biogenic emissions, vehicle emissions, and gasoline evaporation were the main sources of consumed VOCs in Laoshan, Qingdao. Biogenic emissions contributed the most during the non-O3 pollution period, while during the O3 pollution period, biogenic emissions, vehicle emissions, and gasoline evaporation provided the largest contributions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Awkash Kumar, Anil Kumar Dikshit, Rashmi S. Patil
Summary: The Gaussian-based dispersion model AERMOD is used in various countries for air quality management, with a recent study showing better air quality predictions when using WRF output data instead of observed meteorological data. This study highlighted the potential of WRF in generating onsite meteorological data in low-middle income countries where meteorological stations are not available, and also quantifying source contributions in ambient air quality.
Article
Environmental Sciences
Yuxi Wang, Le Cao, Tong Zhang, Haijiang Kong
Summary: The study used the WRF-Chem model to reproduce the ozone and PM2.5 pollution in Fenwei Plain from May 20th to May 29th, 2015. Although there were deviations between the simulation results and observed data, the model generally captured the trend of pollutants and the deviations were acceptable. The WRF-Chem model performed better in simulating ozone than PM2.5. Ozone pollution mainly occurred north of Fenwei Plain due to wind patterns and ozone production chemistry, while PM2.5 pollution occurred at night and was concentrated in the Fenwei Plain.
Article
Environmental Sciences
Wei Wen, Song Shen, Lei Liu, Xin Ma, Ying Wei, Jikang Wang, Yi Xing, Wei Su
Summary: This study used a comprehensive air quality model and particulate matter source apportionment technology to analyze the source apportionment of pollutants in winter and summer in Beijing. It was found that industrial and traffic sources were the two major contributors to O-3 pollution. Regional transport had a significant impact on PM2.5 and O-3 concentrations, with emissions from different regions affecting air pollution in Beijing differently.
Article
Environmental Sciences
Jian Sun, Zhenxing Shen, Ruonan Wang, Guohui Li, Yue Zhang, Bin Zhang, Kun He, Zhuoyue Tang, Hongmei Xu, Linli Qu, Steven Sai Hang Ho, Suixin Liu, Junji Cao
Summary: Tropospheric ozone pollution has become prominent in the North China Plain in China over the past decade. Through measurements and simulations in Luoyang City in 2019, it was found that industrial and traffic emissions were the main sources of VOC pollution in urban areas, and O-3 formation was collectively controlled by VOCs and NOx. The study supports the effectiveness of simultaneous controls of NOx and VOCs in reducing tropospheric O-3 and suggests that joint regional control policies have the potential to address O-3 pollution in China.
ENVIRONMENT INTERNATIONAL
(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)