Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Model Elucidating the Sources and Formation Mechanisms of Severe Haze Pollution Over Northeast Mega-city Cluster in China
Author: Gut Remediation of Environmental Pollutants
Author: Xiangkai LiPublisher: Springer Nature
ISBN: 9811547599
Category : Technology & Engineering
Languages : en
Pages : 249
Book Description
This book focuses on probiotics and gut microbiota, as well as their roles in alleviating the toxicity of various environmental pollutants, presenting the latest research findings and explaining advanced research methods and tools. At the same time, it offers suggestions for future research directions. Further, the book introduces readers to the concept of gut remediation, a potential approach to reducing environmental-pollutant toxicity in vivo, based on modulation of gut microbiota using probiotic supplements. Lastly it provides suggestions for further reading.
China's Sustainability Transitions
Author: Ali CheshmehzangiPublisher: Springer Nature
ISBN: 9811626219
Category : Science
Languages : en
Pages : 215
Book Description
This book considers the impact of global climate change, advocating to promote sustainable development from the perspective of low carbon and climate resilience, by reducing carbon emissions in different aspects of urban and regional development. As the world's largest emitter of carbon dioxide, China is continuously exploring a sustainable path to achieve the momentous goal of 2060 carbon neutrality. In addition, this book reviews and summarizes China's green development and predicts the transformation of China's carbon emission and energy structure before and after the peak of carbon emission in 2030. It examines the role of governance in decarbonization efforts, focusing on decision making processes, policies and regulations, as well as the significance of regions, cities, and communities. This book highlights typical methods of implementing and achieving low carbon development in light of China's practical situation, which helps to resolve some of the problems that may arise in achieving the carbon neutral goal. Therefore, this book is suitable for the reference of scholars in low-carbon environment science, sustainable urban development, and other related fields. It also provides inspiration for China's medium and long-term sustainable development plans in the future.
Multimedia Technology and Enhanced Learning
Author: Yu-Dong ZhangPublisher: Springer Nature
ISBN: 3030511006
Category : Computers
Languages : en
Pages : 507
Book Description
This two-volume book constitutes the refereed proceedings of the Second International Conference on Multimedia Technology and Enhanced Learning, ICMTEL 2020, held in Leicester, United Kingdom, in April 2020. Due to the COVID-19 pandemic all papers were presented in YouTubeLive. The 83 revised full papers have been selected from 158 submissions. They describe new learning technologies which range from smart school, smart class and smart learning at home and which have been developed from new technologies such as machine learning, multimedia and Internet of Things.
Formation Mechanism and Control Strategies of Haze in China
Author: Hong HePublisher: Springer Nature
ISBN: 9811969566
Category : Science
Languages : en
Pages : 263
Book Description
This book summarizes the new major research findings about formation mechanism and control strategies of haze in China, including basic theories, key technologies, equipment and platforms and the applications and implementations of control technologies, in implementing the Strategic Priority Research Program (Class B) of Chinese Academy of Sciences. Different types of air pollution processes experienced by the developed countries in different stages are out-breaking simultaneously in China in the recent years and resulting a new type of “haze chemistry smog” pollution, which is different from the “London smog” and the “Los Angeles photochemical smog”. This book provides a useful reference for related researchers, engineers and policy-makers engaged in atmospheric pollution research, prevention and control in China and other countries.
Numerical Studies on Haze and Photochemical Smog Pollution in China
Author: Li ZhangPublisher:
ISBN:
Category : Air
Languages : en
Pages : 192
Book Description
To investigate the effects of HONO on smog pollution over the PRD-HK, comprehensive sources of HONO, including the heterogeneous formations on the ocean, urban, and vegetation surfaces, traffic emissions, new gaseous formation pathways, and recently proposed biological sources, were parameterized into WRF-Chem. The updated model was applied to study a severe multiple-day smog episode in August 2011 over PRD-HK. Our simulations suggested that the heterogeneous source of HONO from ground, ocean, and aerosol surfaces were the major contributor (~54%) to the observed HONO concentration in Hong Kong, followed by the biological source (~29%) and gaseous sources (~9%). The new HONO sources noticeably affect the regional oxidation capacity with an increase of 10-20% in OH radical and significantly enhanced the smog pollution with increases of 8-15%, 20-30%, and 10-15% in O3, nitrate, and total PM2.5, respectively, over the PRD-HK. The results clearly show that HONO plays an important role in photochemical smog pollution over the PRD-HK region and underscores the needs of implementations of comprehensive HONO formations into regional air quality models before utilizing them for refining ozone-control or PM2.5-control policies in the future.
Improving Understanding of Haze Pollution in the North China Plain Via Atmospheric Modeling and Data Assimilation
Author: Meng Gao (PhD)Publisher:
ISBN:
Category : Air
Languages : en
Pages : 171
Book Description
Frequent haze events have been happening in the North China Plain (NCP), and the severity of these events has attracted massive attention from both the public and the scientific community. Extremely high aerosol loadings in these haze events significantly influence visibility, human health and climate. Thus, improving understanding of haze pollution is of great importance. Furthermore, air quality modeling remains challenging. This thesis elucidated the roles of meteorology, secondary aerosol formation, regional transport, and aerosol feedbacks in winter haze formation, clarified the impacts of emission changes and meteorology changes on PM2.5 concentrations, directly emphasized the importance of implementing pollution control strategies using assessments of health and climate effects, and improved model performance in simulating sulfate and PM2.5 via incorporating heterogeneous sulfate formation and assimilating surface PM2.5 concentrations. This thesis also provided some implications for policy makers. Priorities should be given to control SO2, NH3, and OC emissions, which can be achieved by promoting the shift from coal/biofuel to cleaner energy, and by changing animal feeding and housing ways. In addition, more attention to greenhouse gases and absorbing aerosols is still necessary since absorbing aerosols play important roles in aerosol feedbacks, aerosol feedbacks can aggravate haze pollution, and increases in temperature may increase aerosol concentrations. To protect the public health, it is of great importance to predict air pollution episodes, release alerts of incoming severe haze episodes, and take emergency measures to reduce pollution levels.
Source Tagging Modeling Study of Heavy Haze Episodes Under Complex Regional Transport Processes Over Wuhan Megacity, Central China
Author: Source Apportionment of Airborne Particulate Matter in a Chinese Megacity
Author: Zhe TianPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Jinan is one of the most polluted mega-cities in China, which is primarily due to the high levels of PM2.s. A quantitative understanding on the sources of PM2.s is a prerequisite to control the severe pollution. In this project, 103 PM2.s samples were collected and their chemical composition, including water-soluble ions, trace metals, organice carbon, elemental carbon and organice molecular markers, were measured. Mass closure anlysis reveals that OM (29%), sulphate (18%), nitrate (10%), ammonium (9%) and geological material (9%) are the major chemical components in PM2.s in Jinan. The data were fed to both PMF and CMB models for source apportionment and uncertainty analysis. PMF and CMB have identified secondary inorganic aerosol (41%; 31%), coal burning (10%; 16%), biomass burning (20%; 17%), vehicle emission (16%; 14%) and mineral dust (10%; 6%) as the major PM2.s sources in Jinan, respectively. CMB also identified the metallurgic plant (11 %) production as a potentially important source of Jinan's PM2.s. Furtherwork needs to be done including using other source identifications such as back trajectory, chemical transport model and remote sensing. Longer sampling periods is also recommended and establishing the local source profile is vital for the source apportionment in Jinan in the near future.
Energy Futures and Urban Air Pollution
Author: Committee on Energy Futures and Air Pollution in Urban China and the United StatesPublisher:
ISBN: 9780309385862
Category :
Languages : en
Pages : 386
Book Description
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 book 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.