Ozone can be both helpful and harmful because?

Question

Ozone can be both helpful and harmful because?

Answer 1

ozone layer above the stratosphere stops masive amounts of UV light form coming down to earth

if the ozone is at ground level it can irritate lungs and eyes.

Answer 2

puts us into an ice age, or fries us

Answer 3

ozone layer?

Answer 4

The ozone present in greater concentration in the upper levels(in the stratosphere) absorb the harmful ultra-violet rays of the solar radiation and thus helps us from being affected by skin cancer.

The ozone found near the ground(ground-level ozone) is an air pollutant and can produce respiratory problems in human beings and animals.It is a key component to the smog.It is even supposed to be a cancer-causing agent.

Thus ground-level ozone is harmful to us.