Exploring The Effect Of Air Pollution On Social Activity In China Using Geotagged Social Media Check In Data
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| Author | : Longxu Yan |
| Publisher | : |
| Total Pages | : |
| Release | : 2019 |
| Genre | : |
| ISBN | : |
Understanding the complex impact of air pollution is crucial to assessing exposure risk and defining public health policies in China. However, the evidence and hence knowledge of how urban activity responds to air pollution are limited. In this paper, we propose to use geotagged check-in records on Weibo, a Tweeter-like platform, to systematically investigate the effect of air pollution on urban activity.Based on panel models, we found clear evidence that such effect exists and varies between pollutants, visitors and residents, and different activity types. Typically, SO2 has the largest impact, followed by PM2.5, NO2, and PM10; local citizens' activities are more susceptible than visitors; leisure-related activity has a sensitivity at least twofold higher than work-related activities. Additionally, we tested hypotheses about the heterogeneous effect. We confirmed the role of Income and air quality, showing that people who live in richer and more polluted cities are more likely to experience the effects of air pollution. Specifically, people who live in a more polluted city with 100 unit increments in AvgAQI show on average the same sensitivity as those who live in a less polluted city and earn about 20.3 thousand yuan more in average Income.This reveals new insights about environmental injustice in China. By presenting a portrait of the spatial heterogeneity, we argued that environmental injustice in terms of air pollution is not just about the difference in exposure risk measured based on population distribution, rather the measurement should also consider the disparity derived from urban activity. Secondly, new injustice may arise in underdeveloped areas where manufacture industry is transferred to but people barely take avoidance behavior. Finally, the map also reveals the general neglect of the detrimental effect of light air pollution, which we speculate is partly due to China's comparatively low standard in governmental regulations.We believe our finding contributes significantly to exposure risk assessment and environmental justice debates. Hence it highlights the necessity and urgency of public healthy polices that spread the health consequence of air pollution, especially in the underdeveloped region.
| Author | : Nuno Canha |
| Publisher | : MDPI |
| Total Pages | : 276 |
| Release | : 2021-08-31 |
| Genre | : Medical |
| ISBN | : 3036510826 |
The book “Integrated human exposure to air pollution” aimed to increase knowledge about human exposure in different micro-environments, or when citizens are performing specific tasks, to demonstrate methodologies for the understanding of pollution sources and their impact on indoor and ambient air quality, and, ultimately, to identify the most effective mitigation measures to decrease human exposure and protect public health. Taking advantage of the latest available tools, such as internet of things (IoT), low-cost sensors and a wide access to online platforms and apps by the citizens, new methodologies and approaches can be implemented to understand which factors can influence human exposure to air pollution. This knowledge, when made available to the citizens, along with the awareness of the impact of air pollution on human life and earth systems, can empower them to act, individually or collectively, to promote behavioral changes aiming to reduce pollutants’ emissions. Overall, this book gathers fourteen innovative studies that provide new insights regarding these important topics within the scope of human exposure to air pollution. A total of five main areas were discussed and explored within this book and, hopefully, can contribute to the advance of knowledge in this field.
| Author | : Jens Martin Gurr |
| Publisher | : transcript Verlag |
| Total Pages | : 389 |
| Release | : 2022-09-30 |
| Genre | : Social Science |
| ISBN | : 3839463106 |
Metropolitan research requires multidisciplinary perspectives in order to do justice to the complexities of metropolitan regions. This volume provides a scholarly and accessible overview of key methods and approaches in metropolitan research from a uniquely broad range of disciplines including architectural history, art history, heritage conservation, literary and cultural studies, spatial planning and planning theory, geoinformatics, urban sociology, economic geography, operations research, technology studies, transport planning, aquatic ecosystems research and urban epidemiology. It is this scope of disciplinary - and increasingly also interdisciplinary - approaches that allows metropolitan research to address recent societal challenges of urban life, such as mobility, health, diversity or sustainability.
| Author | : Yashu Chen |
| Publisher | : |
| Total Pages | : 92 |
| Release | : 2017 |
| Genre | : Internet and activism |
| ISBN | : |
The China smog is a severe air pollution issue that has damaging effects on the health of millions of Chinese nationals and contributes to global warming. In the context of the China smog, this study examined civic engagement on social network sites (SNS) and in real life among Chinese nationals utilizing theories of uses and gratification, the effects of internet use, media exposure, internet censorship, political efficacy, trust and social capital. Six hundred and eighty-eight Chinese nationals who are currently studying, working or residing in China completed online questionnaires. In general, the results of this study showed that a combination of high needs for recognition of SNS use and low needs for entertainment of SNS use is related with increased civic engagement. The results of this study also revealed that civic engagement is positively related with attention to content about the China smog on mobile internet, external political efficacy and social capital.
| Author | : Ariane Middel |
| Publisher | : Frontiers Media SA |
| Total Pages | : 231 |
| Release | : 2023-04-18 |
| Genre | : Science |
| ISBN | : 2832515924 |
| Author | : Umair Akram |
| Publisher | : Frontiers Media SA |
| Total Pages | : 116 |
| Release | : 2023-10-17 |
| Genre | : Medical |
| ISBN | : 2832535992 |
| Author | : Nan Guo |
| Publisher | : |
| Total Pages | : 106 |
| Release | : 2016 |
| Genre | : |
| ISBN | : |
Air pollution is one of the worst outcomes from industrialization. Among other air pollutants, PM2.5 is believed to pose the greatest risks to human health as it can lodge deeply into people’s lungs. This study focuses on exploring predicting aerial PM2.5 values from traditional pollutants and wind information using data mining and statistical models, including K-means, Markov chain, SVR, OLS models. Additionally, trending topics on social media is also considered to analyze how PM2.5 influences people's daily life. Considering Sina Weibo is the most popular social media in China, OLS and SVR models were also implemented with Weibo dataset. Predictions based on this study are expected to help government and concerned organizations do better in environmental protection.
| Author | : Chinese Academy of Sciences |
| Publisher | : National Academies Press |
| Total Pages | : 386 |
| Release | : 2008-01-22 |
| Genre | : Science |
| ISBN | : 0309178835 |
The United States and China are the top two energy consumers in the world. As a consequence, they are also the top two emitters of numerous air pollutants which have local, regional, and global impacts. Urbanization has led to serious air pollution problems in U.S. and Chinese cities; although U.S. cities continues to face challenges, the lessons they have learned in managing energy use and air quality are relevant to the Chinese experience. This report summarizes current trends, profiles two U.S. and two Chinese cities, and recommends key actions to enable each country to continue to improve urban air quality.
| Author | : Pei Zheng |
| Publisher | : |
| Total Pages | : 270 |
| Release | : 2017 |
| Genre | : |
| ISBN | : |
Under the theoretical frameworks of agenda-setting and authoritarian environmentalism , this dissertation examined traditional and social media agendas on the air pollution issue in China from 2011 to 2015. It adopted Granger's causality analysis to test the causal relationships among four traditional media outlets (N = 1,147), six types of actors on the Chinese social media platform called Weibo (N = 4,045), and between agendas of traditional media outlets and social media actors. The results showed most of news stories were framed under "publicity and government trust" frame between 2011 and 2012, and under "war on pollution" and "science" frames after 2013. Government officials, environmental scientists and researchers dominated media sources. The state-owned media, People's Daily, set the agenda for other local and commercial media outlets. Agendas on social media were fragmented with media setting the agenda for NGOs and verified individual's accounts. Agenda-setting effects existed only between traditional media and media's Weibo accounts, and between traditional media and verified individuals' Weibo accounts. The agendas of ordinary people on Weibo were independent of the agendas other social media actors and of traditional media. The opinion leaders on Weibo were mostly business leaders and celebrities. This dissertation is the first study to provide a holistic view and clear trajectory of agendas on air pollution over five years. It explained authoritarian environmentalism from a media perspective and contributed to agenda-setting theory by capturing the fragmented nature of the social media agenda. Methodologically, this dissertation advanced existing study by applying a computer-assisted social media data collection method and conducting a more rigorous causality analysis called Granger's causality.
| Author | : Chen, Xi |
| Publisher | : Intl Food Policy Res Inst |
| Total Pages | : 43 |
| Release | : 2017-03-11 |
| Genre | : Political Science |
| ISBN | : |
While there is a large body of literature on the negative health effects of air pollution, there is much less written about its effects on cognitive performance for the whole population. This paper studies the effects of contemporaneous and cumulative exposure to air pollution on cognitive performance based on a nationally representative survey in China. By merging a longitudinal sample at the individual level with local air-quality data according to the exact dates and counties of interviews, we find that contemporaneous and cumulative exposure to air pollution impedes both verbal and math scores of survey subjects. Interestingly, the negative effect is stronger for men than for women. Specifically, the gender difference is more salient among the old and less educated in both verbal and math tests.
