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Least Polluted Countries

Based on the average concentration of PM 2.5 particles in its cities, weighted according to the population of each of its cities.
Source = http://www.telegraph.co.uk/travel/maps-and-graphics/most-polluted-countries/
Quiz by joez
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First submittedMay 25, 2017
Last updatedMay 25, 2017
Times taken31
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5.7
Australia
6.6
Brunei
6.8
New Zealand
7.2
Estonia
7.3
Finland
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Answer
7.3
Canada
8.2
Iceland
8.7
Sweden
8.8
Ireland
9.3
Liberia
+1
level 69
May 25, 2017
Japan just missed the cut and the US is #17
+1
level 69
May 25, 2017
Monrovia is one of the rainiest cities. It must wash all the pollution out of the air.