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Research on the impact of land use and land cover changes on local meteorological conditions and surface ozone in the north China plain from 2001 to 2020.
Sci Rep
January 2025
College of New Energy and Environment, Jilin University, Changchun, 130012, China.
Land use and land cover changes (LULCC) alter local surface attributes, thereby modifying energy balance and material exchanges, ultimately impacting meteorological parameters and air quality. The North China Plain (NCP) has undergone rapid urbanization in recent decades, leading to dramatic changes in land use and land cover. This study utilizes the 2020 land use and land cover data obtained from the MODIS satellite to replace the default 2001 data in the Weather Research and Forecasting-Community Multiscale Air Quality (WRF-CMAQ) model.
View Article and Find Full Text PDFIntegrating the updated HONO formation mechanism to better understand urban O formation chemistry.
Environ Pollut
January 2025
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address:
As a vital precursor of hydroxyl radicals (OH), atmospheric nitrous acid (HONO) plays a significant role in tropospheric chemistry and the production of secondary pollutants. However, knowledge of its sources remains insufficient. To comprehensively investigate the HONO chemistry in polluted cities and alleviate the O pollution, based on a comprehensive HONO-related field campaign in Zibo City, on the North China Plain, the parameterized formulas of additional HONO sources were validated in a box model (based on the default MCMv3.
View Article and Find Full Text PDFPollution characteristics and potential sources of Peroxyacetyl Nitrate in a petrochemical industrialized City, Northwest China.
Chemosphere
January 2025
Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu Province, 730000, China; Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
Peroxyacetyl Nitrate (CHC(O)ONO, PAN), a typical secondary product of photochemical reactions, is well known to be a better photochemical indicator due to the only secondary photochemical source in the troposphere. Studies on PAN pollution are sparse in northwest China, resulting in a limited understanding of photochemical pollution in recent years. Herein, the measurement of PAN, O, volatile organic compounds (VOCs), NO, other related species, and meteorological parameters were conducted from May 1 to August 31, 2022, at an urban site in Lanzhou.
View Article and Find Full Text PDFTime-of-day effects on physical performance and perceptual responses in Brazilian Jiu-Jitsu athletes.
Chronobiol Int
January 2025
Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina, Santa Catarina, Brazil.
This study investigated how the time of day affects physical performance and perceptual responses in Brazilian Jiu-Jitsu (BJJ) athletes. Given the significance of circadian rhythms on athletic capabilities, we aimed to determine whether performance variations occur across different times of the day (morning, 10:00-11:00h; afternoon, 14:00-15:00h; and evening, 18:00-19:00h) and if these effects differ by sex. In total, 23 BJJ athletes (9 females, 14 males) participated in this study.
View Article and Find Full Text PDFSeasonal Variations and Sexual Differences in Home Range Sizes and Activity Patterns of Endangered Long-Tailed Gorals in South Korea.
Animals (Basel)
December 2024
College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea.
The long-tailed goral () faces significant threats from habitat loss and fragmentation and is classified as a Class I endangered species by the Ministry of Environment in South Korea and vulnerable by the IUCN. Understanding the behavioral ecology of this species is crucial for effective conservation and protective measures. Using GPS collars, this study investigated the home range sizes and activity patterns of nine rehabilitated long-tailed gorals (four males and five females) across three regions (Yanggu, Seoraksan National Park, and Uljin) from 2014 to 2016.
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