Scientists have found the cleanest air in the world, above the Antarctic Ocean.
The discovery was made by a research group out of Colorado State University.
Through their studies, they found that the cleanest air is found in the boundary air layer. This is found in an atmospheric region just below the clouds.
The scientists wanted to find out what was in the air. They measured the air for pollutants and natural particles that were suspended in the air.
The scientists found that the air layer was free from particles that humans create from burning fossil fuels and travelling in planes and cars.
The data shows that the Southern Ocean is one of the very few places on Earth that has been minimally affected by anthropogenic activities.