نتایج جستجو برای: reactivity based emission inventory

تعداد نتایج: 3160189  

Journal: :Journal of environmental sciences 2016
Xuemei Wang Shuping Situ Weihua Chen Junyu Zheng Alex Guenther Qi Fan Ming Chang

This article compiles the actual knowledge of the biogenic volatile organic compound (BVOC) emissions estimated using model methods in the Pearl River Delta (PRD) region, one of the most developed regions in China. The developed history of BVOC emission models is presented briefly and three typical emission models are introduced and compared. The results from local studies related to BVOC emiss...

2001
Sajal S. Pokharel Donald H. Stedman

Emission inventories from mobile sources have traditionally been obtained through computer modeling. This method, however, has intrinsic shortcomings in that ideal factors are included while real-world observations are left out. The model predictions have not correlated well with measurements from several studies. Recently, a fuel-based method of obtaining on-road emissions inventories has been...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Rong Wang Shu Tao Yves Balkanski Philippe Ciais Olivier Boucher Junfeng Liu Shilong Piao Huizhong Shen Maria Raffaella Vuolo Myrto Valari Han Chen Yuanchen Chen Anne Cozic Ye Huang Bengang Li Wei Li Guofeng Shen Bin Wang Yanyan Zhang

Black carbon (BC) is increasingly recognized as a significant air pollutant with harmful effects on human health, either in its own right or as a carrier of other chemicals. The adverse impact is of particular concern in those developing regions with high emissions and a growing population density. The results of recent studies indicate that BC emissions could be underestimated by a factor of 2...

2016
J. Kaiser K. M. Skog K. Baumann S. B. Bertman S. B. Brown W. H. Brune J. D. Crounse J. A. de Gouw E. S. Edgerton P. A. Feiner A. H. Goldstein A. Koss P. K. Misztal T. B. Nguyen K. F. Olson A. P. Teng S. Toma P. O. Wennberg R. J. Wild

Measurements of OH reactivity, the inverse lifetime of the OH radical, can provide a top–down estimate of the total amount of reactive carbon in an air mass. Using a comprehensive measurement suite, we examine the measured and modeled OH reactivity above an isoprenedominated forest in the southeast United States during the 2013 Southern Oxidant and Aerosol Study (SOAS) field campaign. Measured ...

2009
D. A. Thornhill A. E. Williams T. B. Onasch E. Wood S. C. Herndon C. E. Kolb W. B. Knighton M. Zavala L. T. Molina L. C. Marr

Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract The goal of this research is to quantify diesel-and gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements cap...

2010
D. A. Thornhill A. E. Williams T. B. Onasch E. Wood S. C. Herndon C. E. Kolb W. B. Knighton M. Zavala L. T. Molina L. C. Marr

The goal of this research is to quantify dieseland gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements captured by a mobile laboratory combined with positive matrix factorization (PMF) receptor modeling. During the MCMA-2006 ground-based component of the MILAGRO field campaign, the Aerodyne Mobile Laboratory (AML) measured many gas...

2017
Yu Zhao

The paper describes a bottom-up development and evaluation of a highly-resolved regional emission inventory for NMHCs in the area of Jiangsu, a strong industrialized region in Eastern China. The reference period is almost 10 years. The quantification of chemical processes is based on the determination of realistic source profiles for industrial activities by near-source measurements. The author...

2015
Dinçer Konur

This paper analyzes an integrated inventory control and transportation problem with environmental considerations. Particularly, explicit transportation modeling is included with inventory control decisions to capture per truck costs and per truck capacities. Furthermore, a carbon cap constraint on the total emissions is formulated by considering emission characteristics of various trucks that c...

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