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The impact of air pollution control measures and the COVID-19 pandemic on photosynthesis in urban trees.
Sci Rep
January 2025
Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
Phytotoxic air pollutants such as atmospheric nitrogen dioxide (NO) are among the major stresses affecting tree photosynthesis in urban areas. We clarified the relationship between NO concentrations and photosynthetic function for three major urban trees, Prunus × yedoensis, Rhododendron pulchrum, and Ginkgo biloba, planted in Kyoto and surrounding cities, combining our published data and new data collected from 2020 to 2023. High NO increased long-term water use efficiency for all species.
View Article and Find Full Text PDFSocioeconomic status correlates with COVID-19 vaccination coverage among primary and secondary students in the most populated city of Chile.
Sci Rep
January 2025
Fundación Ciencia & Vida, Avenida del Valle Norte 725, Huechuraba, Santiago, Chile.
The burden of COVID-19 was heterogeneous, indicating that the effects of this disease are synergistic with both other non-communicable diseases and socioeconomic status (SES), highlighting its syndemic character. While the appearance of vaccines moderated the pandemic effects, their coverage was heterogeneous too, both when comparing different countries, and when comparing different populations within countries. Of note, once again SES appears to be a correlated factor.
View Article and Find Full Text PDFAmbient air pollution and carcinogenic activity at three different urban locations.
Ecotoxicol Environ Saf
January 2025
Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb 10000, Croatia.
Measurements of polycyclic aromatic hydrocarbons (PAHs) were simultaneously carried out at three different urban locations in Croatia (Zagreb, Slavonski Brod and Vinkovci) characterized as urban residential (UR), urban industrial (UI) and urban background (UB), respectively. This was done in order to determine seasonal and spatial variations, estimate dominant pollution sources for each area and estimate the lifetime carcinogenic health risks from atmospheric PAHs. Mass concentrations of PAHs showed seasonal variation with the highest values during the colder period and the lowest concentration during the warmer period of the year.
View Article and Find Full Text PDFWireless microwave-to-optical conversion via programmable metasurface without DC supply.
Nat Commun
January 2025
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, China.
Microwave-optical interaction and its effective utilization are vital technologies at the frontier of classical and quantum sciences for communication, sensing, and imaging. Typically, state-of-the-art microwave-to-optical converters are realized by fiber and circuit approaches with multiple processing steps, and external powers are necessary, which leads to many limitations. Here, we propose a programmable metasurface that can achieve direct and high-speed free-space microwave-to-laser conversion.
View Article and Find Full Text PDFAssociation of Residential Greenness and Sleep Duration in Adults: A Prospective Cohort Study in China.
Environ Res
January 2025
Department of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China. Electronic address:
Background: Exposure to residential greenness has been linked with improved sleep duration; however, longitudinal evidence is limited, and the potential mediating effect of ambient fine particulate matter (PM) has yet to be assessed.
Methods: We obtained data for 19,567 participants across seven counties in a prospective cohort in Ningbo, China. Greenness was estimated using Normalized Difference Vegetation Index (NDVI) within 250-m, 500-m and 1000-m buffer zones, while yearly average PM concentrations were measured using validated land-use regression models, both based on individual residential addresses.
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