Pro-inflammatory responses to PM0.25 from airport and urban traffic emissions

The Science of the Total Environment
Rui-Wen HeFlemming R Cassee

Abstract

Air traffic is rapidly growing, raising concerns about the air pollution in the surroundings of airports and its impact on public health. However, little is known about the impact of air pollution sources on air quality and health in the vicinity of airports. In this study, the sources and adverse health effects of airport-related particulate matter (PM) were investigated and compared to those of urban traffic emissions. Ambient PM0.25 were collected at the Los Angeles International Airport (LAX) and at a central Los Angeles site (USC campus), along with PM2.5 collected directly from turbine and diesel engines. The particle chemical composition, oxidative potential (OP) (ascorbic acid (AA), and electron spin resonance (ESR) assay) as well as their reactive oxygen species (ROS) activity, inflammatory potential (interleukin (IL) 6 and 8 and tumor necrosis factor (TNF)-α) and cytotoxicity on human bronchial epithelial (16HBE) cells were assessed. Chemical composition measurements confirmed that aircraft emissions were the major source to LAX PM0.25, while the sources of the USC samples were more complex, including traffic emissions, suspended road and soil dust, and secondary aerosols. The traffic-related transition metals (Fe and...Continue Reading

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Citations

Jul 10, 2020·American Journal of Physiology. Lung Cellular and Molecular Physiology·Carrie C SmallcombeFariba Rezaee
Nov 21, 2018·Environmental Science and Pollution Research International·Hossein DinmohammadiTina Shahani
Feb 8, 2021·Environmental Health : a Global Access Science Source·Katja M BendtsenUlla Vogel
Mar 30, 2021·Environmental Science and Pollution Research International·Hamid Reza ShamsollahiMasud Yunesian
May 1, 2021·Sensors·Ariana LammersAnke H Maitland van der Zee
Jul 31, 2021·City and Environment Interactions·Karie RileyBryan Manning
Aug 6, 2019·Environmental Science & Technology·Tomasz Gonet, Barbara A Maher

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