Influenza imposes a significant global health burden. This study investigates the effects of humidex and air pollution on influenza and their interactions, using multi-city surveillance data in China. Daily data on reported influenza cases, meteorological factors and air pollution from 319 cities in mainland China over the study period of 2014-2019 were collected. A two-stage analytical framework, comprising distributed lag non-linear model and multivariate meta-analysis, was employed to assess the associations between humidex, air pollution and influenza. Hierarchical and joint effect models were employed to examine their interaction. Nationally, an approximately L-shaped relationship between humidex and influenza was observed, with the highest relative risk (RR) of 2.603 (95 % confidence interval [CI]: 2.195-3.086). Per interquartile range increases in PM, PM, NO, SO, CO and O were associated with influenza risk increments of 0.035 (95 % CI: 0.010-0.061), 0.029 (95 % CI: 0.003-0.055), 0.191 (95 % CI: 0.152-0.231), 0.239 (95 % CI: 0.166-0.317), 0.038 (95 % CI: 0.001-0.076) and -0.171 (95 % CI: -0.238--0.099), respectively. A synergistic interaction effect was identified between low humidex and high air pollution as well as different air pollutants. Subgroup analyses indicated females and individuals aged 7-18 years old exhibited higher risks. Stronger effects were observed during winter season and in large cities. This study underscores the urgent need for tailored interventions to mitigate the health impacts in regions with concurrent low humidex and high air pollution.
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http://dx.doi.org/10.1016/j.jhazmat.2025.137865 | DOI Listing |
Ann Work Expo Health
March 2025
Department of Environmental and Occupational Health (EOH), Colorado School of Public Health, University of Colorado Anschutz Campus, 13001 E. 17th Place, Mail Stop B119, Aurora, CO 80045, United States.
Background: There is an international epidemic of chronic kidney disease of unknown cause (CKDu) in agricultural working populations. Particulate air pollution is a likely contributing factor in populations at risk for CKDu, but there is little personal breathing zone data for these workers.
Methods: We collected 1 to 3 personal breathing zone particulate matter <5 microns (PM5) gravimetric measurements in 143 male sugarcane harvesters over 2 seasons and concurrent ambient samples using personal sampling pumps and cyclone inlets as a sampling train.
Environ Sci Technol
March 2025
School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, P. R. China.
The relationship between the socioeconomic status (SES) and PM exposure is rather inconclusive. We employed taxi-based measurements with 30 m resolution to characterize PM exposure with local source contribution (PM adjusted concentration) discerned for 2019 winter and 2020 summer, in Xi'an. A big data set comprising ∼6 × 10 hourly PM measurements and SES data from ∼5000 communities was utilized to examine the socioeconomic inequalities in community-level PM exposure.
View Article and Find Full Text PDFEnviron Sci Technol
March 2025
Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China.
Humic-like substances (HULIS) widely exist in the atmosphere and may strongly affect human health, environment, and climate. However, there are still no accurate methods for detecting the vertical distribution of HULIS. Here, a Raman-Polarization-Fluorescence Spectroscopic Lidar (RPFSL) was developed to simultaneously measure 64-channel broad fluorescence spectra (370-710 nm) of atmospheric aerosols at an excitation wavelength of 355 nm.
View Article and Find Full Text PDFJ Investig Med High Impact Case Rep
March 2025
Loma Linda University Medical Center, CA, USA.
Idiopathic nodular glomerulosclerosis (ING) is mostly associated with long-standing active smoking and hypertension (HTN). Herein, we present a rare case of ING in a passive smoker with recently diagnosed uncontrolled HTN. A 60-year-old white female with Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal plasma cell disorder, Skin changes (POEMS) syndrome and newly diagnosed HTN was referred because of an elevated creatinine level.
View Article and Find Full Text PDFBMC Public Health
March 2025
School of Public Health, Capital Medical University, No. 10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China.
Background: The long-term health effects of fine particulate matter (PM) on hypertension remain incomprehensive. We evaluated the relationship of PM and its components with hypertension incidence in middle-aged and elderly adults.
Methods: We utilised data from the China Health and Retirement Longitudinal Study collected between 2011 and 2018.
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