Due to the rapid growth of economy and fossil fuel consumption and lack of emission controls, Asian countries have experienced substantially elevated concentrations of air pollutants, which not only degrade regional air quality, but also exert significant impacts on public health and global climate. Severe air pollution in Asia, such as China, India, and Southeast Asia, has attracted great attention of public, scientists and policy makers. For example, the Chinese government aims to reduce the major air pollutants by 30% in 2017 in its major developed regions. However, achieving such an ambitious goal remains a great challenge. One of the essential researches is to know the contributions of different source sectors and regions to air pollutants, and hence to design effective control strategies with minimum economic costs.
Primary pollutants are directly emitted into the atmosphere, while secondary pollutants (such as ozone and secondary particulate matter) are formed in the atmosphere through chemical reactions of gas precursors. As a result, some areas (such as downwind of major urban centers) may not be able to directly control the emissions that make the major contribution to their air quality problems. In addition, the major sources to air pollutants may be different from those to climate change and public health risk. Challenged by this complexity, decision makers need a set of tools that can clearly show quantitative relationships between emissions sources and ambient pollutants concentrations. Source apportionment techniques are valuable tools to quantify the contributions of different source sectors/regions to ambient pollutants. Various source apportionment techniques have been developed including receptor based statistical methods, back-trajectory models, and chemical transport model based methods. Each method has its advantages, uncertainties, applicability, and limitations. Thus, to utilize, compare and integrate different methods for source apportionment of air pollutants in Asia will benefit the whole scientific community and address the urgent needs of air pollution control in Asia.
Aiming to integrating current scientific understanding on air pollutants sources and improving the source apportionment studies in Asia, the special issue of Environmental Pollution will publish a comprehensive set of articles including reviews, cutting-edge researches, and critical commentaries. We invite submissions of novel and original papers and reviews to this special issue that can advance our knowledge in sources of air pollutants in Asia. The outputs will not only help improve local air pollution control strategies in Asia, but also provide methodologies that can be used for characterization of pollution sources in other regions and their climate impacts.
Topics of interest for this special issue include, but not limited to, the following:
- Reviews of previous source apportionment studies in Asia and propose future research directions.
- Source apportionment of primary/secondary pollutants in urban/rural areas using various methods.
- Regional transport of pollutants among different regions in Asia.
- Comparisons of different source apportionment techniques in megacities in Asia, such as Beijing, Shanghai, Tokyo, Seoul, and New Delhi.
- Comparisons of source apportionment results in Asia and other regions.
- Identification of major sources of pollutants that contribute to public health risk.
- Identification of major sources of pollutants that affect the regional and global climate.
Manuscript submission deadline: March 31, 2017.
[IMPORTANT] Please submit this special issue through EES not EVISE through http://ees.elsevier.com/envpol/default.asp
Special Issue Guest Editors:
Dr. Hongliang Zhang
Assistant Professor, Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, Louisiana
Dr. Jianlin Hu
Professor, College of Environmental Science and Technology, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China
Dr. Yuan Wang
Postdoctoral Scholar, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California
Dr. Yele Sun
Professor, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
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