Statement:
Nigeria is more polluted than South Africa

In the Most Polluted Countries rating Nigeria holds position #18 ²⁰²¹ out of 112 and South Africa is #37 out of 112 ²⁰²¹.
Position of Nigeria is worse than position of South Africa.

Referencies:

1. Most Polluted Countries ²⁰²¹ by IQAir

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

   Nigeria	'Pollution Index' value is	34.0
   South Africa	'Pollution Index' value is	22.7