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Recent Decreasing Trends in Surface PM2.5 over East Asia in the Winter-Spring Season: Different Responses to Emissions and Meteorology between Upwind and Downwind Regions
Published 2021-02-01“…This system accurately reproduced the monthly means, daily variations, and vertical profiles of PM2.5 during winter and spring over the Seoul Metropolitan Area (SMA) in South Korea and the North China Plain (NCP) and Yangtze River Delta (YRD) in China. Furthermore, it demonstrated that the decline in PM2.5 over the latter nation is attributable to control measures in China that have been in effect since 2013. …”
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Comparison of Satellite-based PM2.5 Estimation from Aerosol Optical Depth and Top-of-atmosphere Reflectance
Published 2020-10-01“…In this study, satellite observations of TOA reflectance and AOD from the Advanced Himawari Imager (AHI) onboard the Himawari-8 geostationary satellite in 2016 over Yangtze River Delta (YRD) and meteorological data are used to estimate hourly PM2.5 based on four different machine learning algorithms (i.e., random forest, extreme gradient boosting, gradient boosting regression, and support vector regression). …”
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Study on the Impact of Climate Warming on Mariculture in China
Published 2024-09-01“…Further research also reveals that in different marine industrial economic circles, the impact of climate warming on mariculture output is significantly different, which has a certain promoting effect in the Yangtze River Delta economic circle, while it has an obvious inhibitory effect in the Bohai Rim economic circle and the Pearl River Delta economic circle. …”
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Steady-state mixing state of black carbon aerosols from a particle-resolved model
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Sources analysis and risk assessment of heavy metals in soil in a polymetallic mining area in southeastern Hubei based on Monte Carlo simulation
Published 2025-01-01“…This study investigates the pollution characteristics, spatial patterns, causes, and ecological risks of heavy metals in the soils of the southeastern Hubei polymetallic mining areas, specifically the Jilongshan (JLS) and Tonglushan (TLS) regions, located in the middle and lower reaches of the Yangtze River. The main findings are as follows: (1) Among the heavy metals present in the soil, copper (Cu) has the highest average concentration at 278.54 mg/kg, followed by zinc (Zn) at 161.16 mg/kg, chromium (Cr) at 75.23 mg/kg, nickel (Ni) at 30.38 mg/kg, arsenic (As) at 22.53 mg/kg, cadmium (Cd) at 0.76 mg/kg, and mercury (Hg) at 0.14 mg/kg; (2) The distribution of heavy metal concentrations exhibits significant regional variations, with the spatial pattern of pollution indicating that TLS is more affected than JLS, as evidenced by the Pollution Load Index (PLI) values; (3) Three potential sources of heavy metals were identified: natural sources, anthropogenic activities (including industrial production and agricultural practices), and atmospheric deposition (both dry and wet); (4) While severe contamination levels of specific metals such as copper and cadmium are observed in JLS and TLS soils, the overall contamination is mild, suggesting complex contamination dynamics; (5) Cadmium poses a moderate to high ecological risk, being the most sensitive factor in the comprehensive ecological risk assessment with a contribution rate of 65.2 %; (6) The concentrations of heavy metals in the soil present certain health risks, with children being more vulnerable than adults. …”
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Establishment of a Southern catfish (Silurus meridionalis) spermatogonial stem cell line capable of sperm production in vitro
Published 2025-03-01“…Southern catfish (Silurus meridionalis) is widely distributed in the Yangtze River and its tributaries and is valued for its rapid growth, nutritional content, pleasant taste, absence of intermuscular bone, and disease resistance. …”
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