Periodontal treatment is the specialist cleaning of your teeth and gums to help control the bacteria that cause gum disease. Gum disease is caused by the germs (bacteria) which live in your mouth.
Ground-Level Ozone (O 3). Ground-level ozone is a colorless and highly irritating gas that forms just above the earth's surface.It is called a secondary pollutant because it is produced when two primary pollutants react in sunlight and stagnant air.round-Level Ozone (O 3). Ground-level ozone is a colorless and highly irritating gas that forms just above the earth's surface.
Good Ozone, Bad Ozone Ozone: Good up high, bad nearby. The atmosphere of the Earth is divided into layers. Each layer is a little different. Stratospheric ozone is found in the stratosphere, a layer of air way up in the atmosphere.The stratosphere is between 8 and 30 miles above the ground-too far away for you to breathe any of its air! The ozone in this layer of air protects plants, animals, and us by blocking the most harmful rays of the sun.Tropospheric ozone, (ground-level ozone) is found in the troposphere, which is the layer of air closest to the Earth's surface.The troposphere is the air from the ground to about 8 miles up into the atmosphere-it's the air we breathe.ood Ozone, Bad Ozone Ozone: Good up high, bad nearby. The atmosphere of the Earth is divided into layers. Each layer is a little different. Stratospheric ozone is found in the stratosphere, a layer of air way up in the atmosphere.