Ozone in the troposphere layer is a toxic gas that is harmful to the body. Qualify as the most greenhouse gases. Mostly caused by traffic jam. The engine machinery and industrial plants, which are in a confused haze.
Ozone in the troposphere. A toxic gas that can harm the body. Featuring the most greenhouse gases. Mainly caused by traffic and industrial engines. The campsites in smog.
Ozone in the troposphere. A poisonous gas is harmful to the body. Qualified as a greenhouse gas as much as possible. Mostly caused a traffic jam, engine and industrial ซึ่งปะปน in smog.