The influence of megacities on global atmospheric chemistry: a modelling study

被引：38

作者：

Butler, Timothy M. ^{[1
]}

Lawrence, Mark G. ^{[1
]}

机构：

[1] Max Planck Inst Chem, D-55128 Mainz, Germany

来源：

ENVIRONMENTAL CHEMISTRY | 2009年 / 6卷 / 03期

关键词：

emissions; global atmospheric chemistry; megacities; IMPACT; POTENTIALS; EMISSIONS; POLLUTION; CAPACITY; NITROGEN; CLIMATE; OZONE;

D O I：

10.1071/EN08110

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We present the first study of the effects of megacities on global atmospheric chemistry using a global three-dimensional chemical transport model. The effects on air quality, radiative forcing and atmospheric oxidation capacity are disproportionately smaller than the proportion of anthropogenic emissions due to megacities. Disproportionately large effects of megacities are modelled for reactive nitrogen compounds, in particular PAN (peroxy acetyl nitrate), which has increased in abundance globally by 9% due to megacities under year 2000 conditions, with 23% of the Earth experiencing an increase of 10% or more. These influences decrease under two very different future emission scenarios. Under a low-emission future scenario, the influence of megacities is generally reduced, and under a high-emission future scenario, although the local influence of megacities is increased, the geographical extent of the influence becomes smaller. In our model, the individual grid cells that contain megacities respond to the megacity emissions differently depending on their latitude. Tropical megacity grid cells generally show increased ozone year-round, while northern extratropical megacities generally show reduced ozone year-round. Better parameterisation of the sub-grid effects of megacities is an important issue for future work.

引用

页码：219 / 225

页数：7

共 23 条

[1] Response of climate to regional emissions of ozone precursors: sensitivities and warming potentials [J].

Berntsen, TK ;

Fuglestvedt, JS ;

Joshi, MM ;

Shine, KP ;

Stuber, N ;

Ponater, M ;

Sausen, R ;

Hauglustaine, DA ;

Li, L .

TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 2005, 57 (04) :283-304

[2] Negative impact of nitrogen deposition on soil buffering capacity [J].

Bowman, William D. ;

Cleveland, Cory C. ;

Halada, Lubos ;

Hresko, Juraj ;

Baron, Jill S. .

NATURE GEOSCIENCE, 2008, 1 (11) :767-770

[3] The representation of emissions from megacities in global emission inventories [J].

Butler, T. M. ;

Lawrence, M. G. ;

Gurjar, B. R. ;

Van Aardenne, J. ;

Schultz, M. ;

Lelieveld, J. .

ATMOSPHERIC ENVIRONMENT, 2008, 42 (04) :703-719

[4] CityDelta: A model intercomparison study to explore the impact of emission reductions in European cities in 2010 [J].

Cuvelier, C. ;

Thunis, P. ;

Vautard, R. ;

Amann, M. ;

Bessagnet, B. ;

Bedogni, M. ;

Berkowicz, R. ;

Brandt, J. ;

Brocheton, F. ;

Builtjes, P. ;

Carnavale, C. ;

Coppalle, A. ;

Denby, B. ;

Douros, J. ;

Graf, A. ;

Hellmuth, O. ;

Hodzic, A. ;

Honore, C. ;

Jonson, J. ;

Kerschbaumer, A. ;

de Leeuw, F. ;

Minguzzi, E. ;

Moussiopoulos, N. ;

Pertot, C. ;

Peuch, V. H. ;

Pirovano, G. ;

Rouil, L. ;

Sauter, F. ;

Schaap, M. ;

Stern, R. ;

Tarrason, L. ;

Vignati, E. ;

Volta, M. ;

White, L. ;

Wind, P. ;

Zuber, A. .

ATMOSPHERIC ENVIRONMENT, 2007, 41 (01) :189-207

[5] The impact of air pollutant and methane emission controls on tropospheric ozone and radiative forcing: CTM calculations for the period 1990-2030 [J].

Dentener, F ;

Stevenson, D ;

Cofala, J ;

Mechler, R ;

Amann, M ;

Bergamaschi, P ;

Raes, F ;

Derwent, R .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2005, 5 :1731-1755

[6]

Dentener F, 2006, ENVIRON SCI TECHNOL, V40, P3586, DOI 10.1021/es0523845

[7] Impacts of atmospheric anthropogenic nitrogen on the open ocean [J].

Duce, R. A. ;

LaRoche, J. ;

Altieri, K. ;

Arrigo, K. R. ;

Baker, A. R. ;

Capone, D. G. ;

Cornell, S. ;

Dentener, F. ;

Galloway, J. ;

Ganeshram, R. S. ;

Geider, R. J. ;

Jickells, T. ;

Kuypers, M. M. ;

Langlois, R. ;

Liss, P. S. ;

Liu, S. M. ;

Middelburg, J. J. ;

Moore, C. M. ;

Nickovic, S. ;

Oschlies, A. ;

Pedersen, T. ;

Prospero, J. ;

Schlitzer, R. ;

Seitzinger, S. ;

Sorensen, L. L. ;

Uematsu, M. ;

Ulloa, O. ;

Voss, M. ;

Ward, B. ;

Zamora, L. .

SCIENCE, 2008, 320 (5878) :893-897

[8] Impacts of Asian megacity emissions on regional air quality during spring 2001 [J].

Guttikunda, SK ;

Tang, YH ;

Carmichael, GR ;

Kurata, G ;

Pan, L ;

Streets, DG ;

Woo, JH ;

Thongboonchoo, N ;

Fried, A .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2005, 110 (D20) :1-18

[9]

Kalnay E, 1996, B AM METEOROL SOC, V77, P437, DOI 10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO

[10]

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