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Dr. Fareed M. A. Karim Int. Journal of Engineering Research and Applications ISSN : 2248-9622, Vol. 4, Issue 3( Version 3), March 2014, pp.42-55

Figure (12) shows the daily emission in tons of particulate matter in Taiz for both the scenarios, it is clear that clean air act has considerable impact

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on reduction of PM for the years 2014, 2020 and 2025.

Fig. (12): DailyPM Emission For The Two Scenarios 0.6 0.5 Tons

0.4 0.3 0.2 0.1 0 2014 DO NOTHING Figure (13) shows the daily emission in tons of sulfur dioxides in Taiz for both the scenarios, it is clear that clean air act has huge impact on

2020

2025

Year CLEAN AIR ACT reduction of SO2 for the years 2014, 2020 and 2025, the main reason due to the assumption of using clean fuel with less percentage of sulfur.

Fig. (13): Daily SO2 Emission For The Two Scenarios 5

Tons

4 3 2 1 0 2014 DO NOTHING 2- Traffic Improvement in Central Area: To decongest the central area of Taiz city, a traffic management plan was suggested by changing two way traffic to one way in some routes. The environmental impact of this improvement in considered in this section. The air pollution due to traffic at central area was compared for different www.ijera.com

2020

2025

Year CLEAN AIR ACT scenarios. Four scenarios were compared viz. do nothing scenario at the central area (DN), do nothing with traffic management plan at central area (DNTMP) ,Clean Air Act (CAA) at the central area, and traffic management with clean air act (CAATMP). 51 | P a g e


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