Download Air Pollution Modeling and Its Application XVI by Eugene L. Genikhovich (auth.), Carlos Borrego, Selahattin PDF

By Eugene L. Genikhovich (auth.), Carlos Borrego, Selahattin Incecik (eds.)

Carlos Borrego is Professor of Environmental Engineering and pollution Modeling on the collage of Aveiro (Portugal). Former Minister of atmosphere (Portuguese executive) and President of the ecu Union delegation to the United international locations convention on surroundings and improvement (Rio 1992). Chairman of the overseas Technical conferences of NATO/CCMS. Selahattin Incecik is Professor in Meteorology, pollution Meteorology and pollution Modeling. Former Head of division of Meteorology, ITU. consultant of Turkey in NATO ITM of pollution Modelling. consultant of college in nationwide Atmospheric examine Council. Lead writer of IPCC/TEAP Safeguarding the Ozone Layer and worldwide weather approach, 2005 (in preparation).

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Applied computational algorithm takes into account land-cover of separate grid cells (European Land Use Database of RIVM was used) as well as WHO recommendations of critical S02 levels for a given ecosystem type (WHO, 2000). As the WHO annual S02 target value (50 ~g/m3) is much bigger than critical levels for ecosystems (15-30 ~g/m3), obtained grided critical levels for Poland protect also humans from direct adverse effects. Mapping the sensitivity of humans or vegetation to particulate sulphate is more difficult.

O 42 -'0 - 20 -30 - 50 Figure 4. Subdomains and percent changes of SO. concentrations due to a 50% reduction ofS0 2 emissions, July 14,1995,3:00 GMT 37 Fig. 5 presents timeseriesof percentage changes in sulphate for3 subdomains where • I -sa ... a) - -M ..... ·" -;U bl -al -al · :~ . -:II c) -al - 21 -40 I • "nIT". S"'p rrn~ D:oo:oo UI 7/1719S ZZ:OO:OD) Figure 5. Time series of percent changes of S04 concentrations averaged over sub-domains for July 7-17, 1995, as a result of 50 % domain-wide cut ofT in S02 emissions: a) north-east.

In addition to the basic emissions, NH3 and monoterpene emissions were included in this study, in order to calculatethe secondary aerosols. The procedure to obtainNH3 emissions is given by Martilli et al. (2002). The model domain consists of 47x54 grid cells with a resolution of 3km x 3km. It coversthe Lombardy region and some part of Southern Switzerland (Figure 1). There are 8 layers in a terrain-following coordinate system, the first being50 m aboveground. The model top is set at 3000 m above ground.

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