HULHULE-MALE’ BRIDGE PROJECT

Table 6.7 Motor Vehicle Emission Standard of Maldives
Fuel
Type
Petrol
Diesel
EIA for the proposed Hulhule-Male’ Bridge Project
HC+NO
CO HC
Vehicle Type
Description
X
PM
Measurements (g/km)
Motorcycle - 2.00 - 2.00 -
cars
Limited to 6 seaters(including
driver)
2.20 - 0.50 -
6 seaters above, but GVW upto
3.5 t
5.0 - 0.7 -
GVW upto 3.5 t Light trucks including cars 1.5 - 1.2 0.17
GVW exceeding
3.5 t
4.5 1.1 8.0 0.36
The caculation formula on intensity of automobile exhaust source is:
Q nj
3
= ∑ A •
in E
i=
1
ijn
• 3600 −
1
Where: Qnj refers to the weight of emission j class in the nth year, per unit time and length when
the vehicle operates (mg/m•s);
Ain refers to traffic volume of vehicle i type in the evaluation year n (vehicle/hour);
Eijn refers to single emission factor of emission j class of vehicle i type in the
evaluation year n (mg/m• vehicle).
Refer to Table 6.8 for the caculation results of road pollutants of this project.
Table 6.8 Source intensity of automobile exhaust in long-term operation (the mean in daytime of 2032)
Vehicle type
2032
CO (g/km·s)
NO x (g/km·s)
Motorcycles 0.0911 0.0911
Cars 0.4010 0.0668
Buses 0.0200 0.0307
Subtotal 0.5121 0.1886
(2) Meteorological data: the full-year hourly meteorological data of 2014 in Male.
(3) Choose NO 2 and CO of the main pollutants of automobile exhaust as the predictive factors.
(4) The conversion rate of NO 2 and NO x is to calculate the default conversion rate in ADMS
software. The impact of NO 2 on surrounding environment will be predicted from the conversion
rate of NO x 与 NO 2 default in ADMS model. The chemical reaction module in the model
integrates the equation of Generic Reaction Set, considering the photochemical reaction among
Prepared by: CDE Consulting & China Shipping Environment Technology
Page|170