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Driving mechanism of urban expansion in the Bohai Rim urban agglomeration from the perspective of spatiotemporal dynamic analysis.
Sci Rep
December 2024
College of Geography and Environment, Shandong Normal University, Jinan, 250358, China.
The urban agglomeration represents the predominant form of new urbanisation, yet the evolution of its internal spatial structure exhibits pronounced spatial and temporal heterogeneity. This study concentrates on the Bohai Rim urban agglomeration, one of three major urban agglomerations in China, which has received comparatively limited research attention but has also undergone substantial urbanisation. Therefore, we reassessed and explored the spatial-temporal evolution of the spatial structure of urban expansion using Exploratory Spatiotemporal Data Analysis (ESTDA), and summarized the driving mechanisms using Geographically and Temporally Weighted Regression (GTWR).
View Article and Find Full Text PDFMetals and metalloids pollution levels, partitioning, and sources in the environmental compartments of a small urban catchment in Moscow megacity.
Environ Pollut
December 2024
Faculty of Geography, Lomonosov Moscow State University, Leninskie Gory 1, 119991, Moscow, Russian Federation; Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima Prefecture, 960-1296, Japan.
This study examines the contamination levels and sources of 32 metals and metalloids (MMs) in environmental compartments (roadside soil, road dust, and river suspended sediments) of a small urbanized river catchment located in Moscow megacity. MMs partitioning between particle size fractions (PM, PM, and PM) was analyzed by ICP-MS and ICP-AES methods. The pollution level of particle size fractions with MMs decreases in the following series: road dust > suspended sediments > soils.
View Article and Find Full Text PDFDistribution and controlling factors of dissolved inorganic carbon in urban rivers of a North China megacity: Insights from δC.
J Environ Manage
December 2024
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Beijing), Beijing 100083, China; Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing 100083, China; Frontiers Science Center for Deep-time Digital Earth, China University of Geosciences (Beijing), Beijing, 100083, China. Electronic address:
Transportation and transformation of the dissolved inorganic carbon (DIC) play a critical role in the regional carbon cycle. To clarify the natural and anthropogenic impacts on DIC, the concentration and isotopic composition of DIC (δC) in two typical urban rivers in northern China (Yongding River, YDR, and Chaobai River, CBR) were measured. Mass-balanced calculations were employed to quantify the impacts of different weathering processes.
View Article and Find Full Text PDFMonitoring Influenza A (H1N1, H3N2), RSV, and SARS-CoV-2 Using Wastewater-Based Epidemiology: A 2-Year Longitudinal Study in an Indian Megacity Covering Omicron and Post-Omicron Phases.
Food Environ Virol
November 2024
Biochemical Sciences Division, CSIR-National Chemical Laboratory (NCL), National Collection of Industrial Microorganisms (NCIM), Pune, 411008, Maharashtra, India.
The bourgeoning field of wastewater-based epidemiology (WBE) for the surveillance of several respiratory viruses which includes Influenza A, H1N1pdm09, H3N2, respiratory syncytial viruses (RSV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is of interest for public health concerns. However, there are few long-term monitoring studies globally. In this study, respiratory viruses were detected and quantified from 11 sewer sheds by utilizing reverse transcription-quantitative polymerase chain reaction analysis in Pune city, India, from Jan 2022 to Dec 2023.
View Article and Find Full Text PDFAir pollution control and health economic burdens: Evidence from a megacity in China from 2014 through 2022.
Environ Res
January 2025
School of Pharmaceutical Business, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China; Guangdong Health Economics and Health Promotion Research Center, Guangzhou, 510006, PR China; Key Laboratory of Technology Research and Evaluation of Pharmacovigilance, National Medical Products Administration, Guangzhou, 510006, PR China. Electronic address:
The Guangdong-Hong Kong-Macao Greater Bay Area (GBA) stands as China's foremost region in air pollution control. Shenzhen, as a model city, was selected to quantify the health-economic gains brought about by pollution control efforts. The paper showcased the exemplary practices of GBA in safeguarding the blue sky, providing a template for other regions.
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