Ozone - Wikipedia
Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the atmosphere, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun 's ultraviolet (UV) radiation.
What are the 2 types of ozone? - BYJU'S
The two types of ozone are (a) good ozone, (b) bad ozone. The “good” ozone, also known as stratospheric, occurs naturally in the upper atmosphere. This ozone forms a protective layer that shields us from the sun’s harmful ultraviolet (UV) rays.
What is Ozone? | US EPA - U.S. Environmental Protection Agency
Jun 20, 2024 · Ozone (O3) is a highly reactive gas composed of three oxygen atoms. It is both a natural and a man-made product that occurs in the Earth's upper atmosphere. (the stratosphere) and lower atmosphere (the troposphere). Depending on where it is in the atmosphere, ozone affects life on Earth in either good or bad ways.
Ozone layer - Wikipedia
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone (O 3 ) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
Ozone | Definition, Properties, Air Pollution, Importance, Structure ...
Dec 11, 2024 · Ozone is a triatomic allotrope of oxygen (a form of oxygen in which the molecule contains three atoms instead of two as in the common form) that accounts for the distinctive odor of the air after a thunderstorm or around electrical equipment.
Ground-level Ozone Basics | US EPA
May 14, 2024 · Learn the difference between good (stratospheric) and bad (tropospheric) ozone, how bad ozone affects our air quality, health, and environment, and what EPA is doing about it through regulations and standards.
Information on Ozone and Ozone Depletion | US EPA
See a list of chemicals categorized as ozone-depleting substances (ODS) under the Montreal Protocol. Current State of the Ozone Layer. Learn about the recovery of the ozone layer. Atmospheric and Health Effects Framework Model Estimating Ultraviolet Radiation …
Ozone - Center for Science Education
Ozone is a special kind of oxygen molecule. Normal oxygen molecules (O 2), the kind we need to breathe, have two oxygen atoms. Ozone molecules (O 3) have three oxygen atoms. Ozone is found in two different layers in Earth's atmosphere. "Bad" ozone is found in the troposphere, the layer nearest the ground.
Ozone layer | Description, Importance, & Facts | Britannica
Dec 4, 2024 · The ozone layer effectively blocks almost all solar radiation of wavelengths less than 290 nm from reaching Earth’s surface, including certain types of ultraviolet (UV) and other forms of radiation that could injure or kill most living things.
Ozone depletion - Wikipedia
There are three types of PSC clouds—nitric acid trihydrate clouds, slowly cooling water-ice clouds, and rapid cooling water-ice (nacreous) clouds—provide surfaces for chemical reactions whose products will, in the spring lead to ozone destruction.