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Coastal beaches are vulnerable to microplastic pollution originating primarily from terrestrial and marine sources or the in situ weathering of plastic waste. The present study investigates the effects of rainfall events on the composition and diversity of microplastics on beaches in Xiamen City on a short-term scale. In the results, the quantity of microplastics in beach sediments was 245.83 ± 11.61 items·kg (mean ± standard error). The abundance of microplastics did not differ after each rainfall event but significantly decreased after multiple rainfall events. When the diversity of microplastics in the coastal area was evaluated, the Shannon-Wiener index and Pielou's index also decreased from 3.12 and 0.64 to 2.99 and 0.62, respectively, after multiple rainfall events. Rainfall had varying effects on microplastics depending on their size and shape, with particles smaller than 500 μm experiencing pronounced reductions. There was a significant negative correlation between the abundance of microplastics and the grain size of sand, but a positive correlation with sediment moisture content. We encourage the consideration of the potential impact of rainfall events during sample collection to ensure the reliability of the data. We also recommend using diversity indexes to help in understanding the influence of physical processes on microplastic distribution and their mechanisms.
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http://dx.doi.org/10.3390/toxics12050375 | DOI Listing |
Front Reprod Health
August 2025
Ipas Nepal, Kathmandu, Nepal.
Background: Nepal is highly affected by climate change, experiencing glacier melting, untimely rainfall, floods, landslides, forest fires, and droughts, which collectively impact over 10 million people. There is a larger impact of climate change on human health, but its impact on women's and girls' sexual and reproductive health and rights is yet to be explored. Thus, this study aims to understand the linkages between climate change and the unique impact on gender and sexual, and reproductive health and rights (SRHR).
View Article and Find Full Text PDFSci Total Environ
September 2025
Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India. Electronic address:
Extreme rainfall during the Indian Summer Monsoon (ISM) accounts for approximately 27 % of the total seasonal rainfall. Most of this moisture is transported from the Indian Ocean. Amid ongoing warming of the Indian Ocean, 2023 stood out as one of the warmest monsoon years on record.
View Article and Find Full Text PDFSci Total Environ
September 2025
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China.
Urban flooding, exacerbated by climate change and the expansion of impervious surfaces, poses growing risks to sustainable urban development. Enhancing soil infiltration through green infrastructure is a promising nature-based solution, yet its hydrological effectiveness and economic viability under diverse rainfall scenarios remain insufficiently quantified. This study develops an interdisciplinary framework integrating column experiments, physically distributed hydrological modeling, and cost-benefit analysis to assess ceramsite-amended soils for urban flood resilience.
View Article and Find Full Text PDFSci Total Environ
September 2025
Department of Environmental & Water Resources Engineering, University Teaching Department, Chhattisgarh Swami Vivekanand Technical University Bhilai, Bhilai 491107, Chhattisgarh, India; Department of Civil Engineering, National Institute of Technology Raipur, Raipur 492001, Chhattisgarh, India. Elec
Drought is a natural event, but its frequency and severity are increasingly influenced by human activity and climate change. In the current Anthropocene era, human-induced changes to the hydrological cycle combined with natural climate variability are reshaping how droughts develop and persist. Droughts often result from complex interactions between atmospheric conditions and land surface processes, which affect how water and energy move through the environment.
View Article and Find Full Text PDFEnviron Int
September 2025
SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, China; School of Environment, South China Normal University, University To
Frequent rainfall events can trigger sewer overflows and surface runoff, facilitating the spread of antimicrobial resistance (AMR) to downstream aquatic environments. However, the dynamic hydrologic conditions during rainfalls complicate the behavior of antibiotic resistance genes (ARGs), making it challenging to trace their sources and assess associated risks. Here, we integrated global resistome data to investigate the distribution, sources, and AMR risks of ARGs in the Xiangjiang River during the wet season, in comparison to the dry season.
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