Aonitoring NÖNcompliance 
8000 
LA 
FF 
u 
—_ 
6000 - 
) 
F 
w 
m 
} 
4000 - 
4 
5 
nn 
E 
> 
Pa 
3 2000 - 
fr 
NO, - EF for measured ship plumes from 2014 to 
2020 in Wedel, Bremerhaven and Kiel (n=45346) 
1500 rom 
50 rom ' 
Tier | (from 2000' 
fer Il (from 2015 
Tier Ill (from 2021) 
n 
© © © © © © © © © © © © OO © © © 
a NM sr U WO CO ©) © — N 8 <sr' un mn 
/ — —. — — — — A 
NO, emission factor [g/kg fuel] 
90% are below 
upper Tier I limit 
84% are below 
upper Tier Il limit 
Only 9% comply 
with Tier Ill 
Shift to smaller 
EF expected 
from 2021