Question: what is the difference between stratospheric and surface ozone?
Answer: Ozone is both good news and bad news! Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the troposphere, closer to Earth's surface, is a pollutant and hazardous to our health. ... Tropospheric ozone and other air pollutants are common in urban areas in late afternoon.