The ozone level higher than the ground, more than 40 kilometres up to a good level of ozone ozone section.Higher ground is less than 2 kilometres to a bad ozone. What cause low levels of ozone include smokeCars, etc.
Ozone at ground level is higher than 40 kilometers up the ozone at the ozone levels above the ground is less than 2 kilometers. Ozone is bad What caused ozone levels are low smoke of cars and so on.
Ozone with a higher ground than 40 kilometers up to a good ozone and ozone levels.Higher ground than 2 kilometers are ozone, bad, what triggers the ozone levels ต่ำได้แก่ smoke.Cars, etc.