The U.S. Centers for Disease Control and Prevention has recently acknowledged that the principal mode for SARS-CoV-2 (the virus that causes COVID-19) to spread is through airborne particles. Reducing levels of particulate matter, a form of air pollutant, may decrease the spread of the virus and save lives. In this article, we propose establishing local Air Quality Enhancement Districts using low-cost air quality sensors. Air quality sensors provide more detailed data on particulate matter concentrations than what is currently provided by the U.S. Environmental Protection Agency, which will allow communities and individuals to make better informed decisions about activities during poor air quality days. The core principles behind local Air Quality Enhancement Districts is to (1) provide citizens with more localized data on air quality, (2) raise awareness on localized pollution and health impacts related to COVID-19, and (3) empower citizens and local governments to take quick actions to reduce exposure and respiratory distress during times of poor air quality.
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http://dx.doi.org/10.1007/s13412-021-00670-9 | DOI Listing |
Nanotechnology
January 2025
School of Instrumentation Science and Opto-electronics Engineering, Beijing Information Science and Technology University, 12 Qinghe Xiaoying East Road, Xisanqi Street, Haidian District, Beijing, Beijing, 100192, CHINA.
Lead-free cesium bismuth iodide (CsBiI) perovskite exhibits extraordinary optoelectronic properties and attractive potential in various optoelectronic devices, especially the application for photodetectors. However, most CsBiIphotodetectors demonstrated poor detection performance due to the difficulty in obtaining high-quality polycrystalline films. Therefore, it makes sense to modulate the preparation of high-quality CsBiIpolycrystalline films and expand its applications.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong SAR 999077, China.
Chlorine radicals (Cl) are highly reactive and affect the fate of air pollutants. Several field studies in China have revealed elevated levels of daytime molecular chlorine (Cl), which, upon photolysis, release substantial amounts of Cl but are poorly represented in current chemical transport models. Here, we implemented a parametrization for the formation of daytime Cl through the photodissociation of particulate nitrate in acidic environments into a regional model and assessed its impact on coastal air quality during autumn in South China.
View Article and Find Full Text PDFSci Adv
January 2025
Doerr School of Sustainability, Stanford University, Stanford, CA, USA.
Poor ambient air quality poses a substantial global health threat. However, accurate measurement remains challenging, particularly in countries such as India where ground monitors are scarce despite high expected exposure and health burdens. This lack of precise measurements impedes understanding of changes in pollution exposure over time and across populations.
View Article and Find Full Text PDFEur J Prev Cardiol
January 2025
Department of Invasive Cardiology, Medical University of Bialystok, 24A M. Skłodowskiej-Curie St., 15-276 Białystok.
Int J Circumpolar Health
December 2025
Department of Chemistry, Carleton University, Ottawa, ON, Canada.
Rates of respiratory tract infections for children living in remote First Nations communities in the Sioux Lookout Zone in Northwestern Ontario are elevated and associated with poor indoor environmental quality including high exposures to endotoxin and serious dampness and mould damage. The studies also revealed a high prevalence of cigarette smoking and most houses have wood stoves, of variable quality. Depending on structure, polycyclic aromatic hydrocarbons (PAH) are carcinogens, immunotoxins and/or inflammatory mediators that are byproducts of the incomplete combustion of organic materials.
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