On the reduction of urban particle concentration by vegetation - a review

被引:221
作者
Litschke, Tom [1 ]
Kuttler, Wilhelm [2 ]
机构
[1] TUV Nord Umweltschutz, D-22525 Hamburg, Germany
[2] Univ Duisburg Essen, Essen, Germany
关键词
D O I
10.1127/0941-2948/2008/0284
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
In order to assess the filtration performance of plants with respect to atmospheric dust, deposition on vegetation has been investigated by a number of different methods (field studies, numerical and physical modelling) over the past few years. The intention of this review is to assess the extent to which a reduction in particle concentration (especially PM10) can be accomplished by existing vegetation or targeted planting on the basis of international publications. The range of this assessment however is limited to the quantitative filtration potential of urban vegetation. Deposition velocity was taken as a measure of filtration performance as, a particle deposited on a plant is in effect taken from the atmosphere. As regarding published deposition velocities, there are differences of an order of magnitude between measured values and the results of model calculations. The average published value (similar to 1 cm s(-1)) corresponds to a reduction in pollutant concentration (PM10) of about 1 % in urban areas. In addition, analyses carried out for a busy arterial road show that very large vegetation areas (in excess of 10,000 m(2)) would be needed to compensate for local emissions of particles (PM10) by vehicles at a deposition velocity of 1 cm s(-1). However, current in-situ measurements indicate deposition velocities considerably higher than 1 cm s(-1) and, for PM1, velocities above 10 cm s(-1). If these results were confirmed by further measurements, local planting campaigns covering small areas could also be beneficial for a reduction of particle concentrations.
引用
收藏
页码:229 / 240
页数:12
相关论文
共 39 条
[1]  
[Anonymous], CHICAGOS URBAN FORES
[2]  
[Anonymous], 2004, WATER AIR SOIL POLL
[3]  
[Anonymous], SAMMLUNG ABHANDLUNGE
[4]  
[Anonymous], 1975, VEGETATION ATMOSPHER
[5]   TRENDS IN SMOKE CONCENTRATIONS BEFORE AND AFTER CLEAN AIR ACT OF 1956 [J].
AULICIEMS, A ;
BURTON, I .
ATMOSPHERIC ENVIRONMENT, 1973, 7 (11) :1063-1070
[6]   Particulate pollution capture by urban trees: effect of species and windspeed [J].
Beckett, KP ;
Freer-Smith, PH ;
Taylor, G .
GLOBAL CHANGE BIOLOGY, 2000, 6 (08) :995-1003
[7]  
Bongardt B, 2006, ESSENER OKOLOGISCHE, V24
[8]   Simulating surface-plant-air interactions inside urban environments with a three dimensional numerical model [J].
Bruse, M ;
Fleer, H .
ENVIRONMENTAL MODELLING & SOFTWARE, 1998, 13 (3-4) :373-384
[9]   THE PRESENCE OF STRUCTURAL SURFACE WAXES ON CONIFEROUS NEEDLES AFFECTS THE PATTERN OF DRY DEPOSITION OF FINE PARTICLES [J].
BURKHARDT, J ;
PETERS, K ;
CROSSLEY, A .
JOURNAL OF EXPERIMENTAL BOTANY, 1995, 46 (288) :823-831
[10]  
DURING I, 2004, BERECHNUNG KFZ BEDIN