Cleanest Capital Cities

Name the cleanest / least polluted capital cities in 2017. Main focus on cleanest air, recycling and over all "greeness".
According to https://www.telegraph.co.uk/travel/galleries/the-cleanest-capital-cities-on-earth/
https://ecobnb.com/blog/2017/06/cleanest-capital-cities/
GREEN BOX = capital of a "country", not of a sovereign nation
Quiz by skukka
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Last updated: November 29, 2018
First submittedMarch 26, 2018
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#
Clean City
Hint
1
Stockholm
Europe
2
Wellington
Oceania
3
Canberra
Oceania
4
Ottawa
North America
5
Edinburgh
Europe
#
Clean City
Hint
6
Montevideo
South America
7
Tallinn
Europe
8
Helsinki
Europe
9
Monaco
Europe
10
Madrid
Europe
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