Fossil-fuel burning transportation methods significantly contribute to air pollution. During the COVID-19 pandemic, South Korea experienced a 10-20% decline in commuting flows, even without government-mandated stay-at-home orders. This paper quantifies the impact that decreased commuting flows have on PM, PM, NO, CO, and SO, using municipality level commuting data. We find that a 1% decrease in commuting flows decreases air pollutants by 0.08-0.17%, after controlling for seasonality and time-varying local production. The effect was higher in regions with high initial pollution, and people recognized air quality improvements. These results emphasize the importance of encouraging cleaner transportation methods after the pandemic.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8442532 | PMC |
| http://dx.doi.org/10.1016/j.asieco.2021.101374 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Revealing the decision-making practices in automated external defibrillator deployment: insights from Shanghai, China.
BMC Public Health
January 2025
School of Economics, Shandong University of Technology, Zibo, 255000, PR China.
In recent years, the government has promoted the increased deployment of automated external defibrillators (AEDs) in public places with dense crowds, which is of great significance for ensuring that residents enjoy equal health rights. However, it is still unclear what factors decision-makers take into account when formulating deployment plans and whether these factors are related to local characteristics such as population distribution and socioeconomic conditions. Taking Shanghai, China as the research area, we adopted the kernel density estimation and spatial autocorrelation analysis to explore the spatial distribution characteristics of AEDs.
View Article and Find Full Text PDFBioinspired self-flowing wood chemical treatment.
Nat Commun
January 2025
Department of Mechanical Engineering, Advanced Materials and Manufacturing Process Institute (AMMPI), University of North Texas, Denton, TX, USA.
Wood has complex composition and structure, which make it difficult to achieve consistent and controllable treatment. A self-flowing process presented for the chemical treatment of wood is inspired by liquid transportation in trees during photosynthesis and tree growth, whereby liquid in the soil is brought through the natural vessels and/or fiber tracheids. In this process, wood lumbers are placed in a tank containing treatment chemicals such as preservatives, fire retardants, or reactive agents.
View Article and Find Full Text PDF[Case of intractable beriberi treated with acupuncture of 's three-promotion needling method].
Zhongguo Zhen Jiu
January 2025
Third Clinical Medical School of Zhejiang Chinese Medical University, Hangzhou 310053, China; Department of Acupuncture and Moxibustion, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310005.
The paper introduces one case of intractable beriberi treated with acupuncture of 's three-promotion needling method. The patient visited the hospital because of "repeated redness and swelling of the feet, combined with itching for over 2 years, aggravated in recent 2 days on the left foot". The chief complaints included redness and swelling of the left foot, with the normal walking disturbed, poor appetite, and abdominal distention after meal.
View Article and Find Full Text PDFInfluence law of air flow and water immersion duration on the risk of secondary oxidation spontaneous combustion of coal.
Sci Rep
January 2025
School of Civil and Transportation Engineering, Ningbo University of Technology, NiBo, 315211, China.
Article Synopsis
- The study investigates the risk of spontaneous combustion in lignite coal under varying air flows and immersion times.
- It finds that long-term water-immersed coal shows lower oxygen consumption and heat release at higher temperatures during the primary oxidation process compared to short-term water-immersed coal.
- In the secondary oxidation phase, long-term water-immersed coal has higher oxygen consumption and heat release rates, while increased air flow and longer immersion times elevate the risk of spontaneous combustion.
Numerical simulation study on the influence of bend diameter rate on the flow characteristics of nature gas hydrate particles.
Sci Rep
December 2024
Jiangsu Key Laboratory of Oil-Gas Storage and Transportation Technology, Changzhou University, Changzhou, 213164, Jiangsu, China.
Bend pipe is a common part of long distance pipeline. There is very important to study the flow law of hydrate particles in the bend pipe, and pipeline design will be optimized. In addition, the efficiency and safety of pipeline gas transmission will be improved.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!