North Korea's mortality rate due to air pollution has dropped compared to a couple of years ago, but is still very high.
The World Health Organization says North Korea's mortality rate due to poor air quality currently stands at over 207 out of 100-thousand people per year.
That's a rate ten times higher than South Korea.
China was 113... and Mongolia 156 per 100-thousand people.
The WHO says poor air quality can cause stroke, heart disease, lung cancer as well as a number of other serious ailments.
North Korea's tuberculosis rate is the sixth highest in the world.