Statement:
Puerto Rico is less polluted than Singapore

In the Most Polluted Countries rating Puerto Rico holds position #102 ²⁰²¹ out of 112 and Singapore is #66 out of 112 ²⁰²¹.
Position of Puerto Rico is better than position of Singapore.

Referencies:

1. Most Polluted Countries ²⁰²¹ by IQAir

   The countries in the rating sorted by 'Pollution Index' in descending order.

   Puerto Rico	'Pollution Index' value is	4.8
   Singapore	'Pollution Index' value is	13.8