Difusion of local emissions from ships at berth: maps

Emission of exhaust gases, especially SOx, NOx and atmospheric particles such as PM10 and PM2,5 emited by auxiliary engines of ships at berth affect directly and locally to air quality. Furthermore, CO2 emissions affect global warming.

Local impact estimation can be carried out using simulation techniques of pollutant diffusion; these techniques requiere high computional processing capacity. Local impact can be also estimated following the methodology presented and knowing the geographic position of each ship in port.

Below are presented the results of two case studies:

Case 1: PM10 annual tonnes estimating in Avilés Port in 2016:

Mooring points
PM10 (T)
ALCOA INESPAL
0,051
AMPLIACIÓN RAÍCES
0,507
ARCELOR (A Y B)
0,372
ARCELOR (Z. 1 A 3)
0,407
ESTE
0,247
MUELLE VALLINIELLO
1,306
OESTE
0,190
RAÍCES
1,131
SUR
1,044
SUR AGUSTÍN (Z. 4 Y 5)
0,006
LA MARUCA
0,0
TOTAL
5,26
PM10 annual tonnes that could be removed from atmosphere in case the ships at berth were supplied with energy from the onshore electric grid in the Avilés port.

 

Case 2: NOx tonnes emitted to atmosphere by ships mooring in the port of Barcelona from the 1st to the 15th of January 2017. 

1 to 15 of January 2017
Time at berth (h)
Nº of ships berthing
Auxiliary engines average power  (kW)
NOx Emissions (T)
Total
4.255,5
265
651
23,4
NOx fortnightly tonnes that could be removed from atmosphere in case the ships at berth were supplied with energy from the onshore electric grid in the Barcelona port. 

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