为您找到"
ozone
"相关结果约100,000,000个
Ozone is an inorganic molecule with the formula O3 that is formed by ultraviolet light and electrical discharges in the atmosphere. It has a pungent smell, a pale blue color, and is a powerful oxidizing agent that can be used for water purification, but also poses health and environmental risks.
Learn what ozone is, where it is in the atmosphere, and how it affects human health. Find out how to protect yourself and your patients from the harmful effects of ground-level ozone, a major air pollutant.
Ozone is a gas that causes serious health problems when inhaled at ground level. Learn how ozone forms, who is at risk, and what you can do to protect yourself from this invisible pollutant.
See satellite images and movies of the ozone layer and the ozone hole over the South Pole. Learn about ozone facts, Dobson units, and the causes and effects of ozone depletion.
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. It is an irritating pale blue gas that is explosive and toxic.
Ozone is a gas that is naturally present in our atmosphere. Ozone has the chemical formula O3 because an ozone molecule contains three oxygen atoms (see Figure Q1-1). Ozone was dis-covered in laboratory experiments in the mid-1800s. Ozone's presence in the atmosphere was later discovered using chemical and optical measurement methods. The word ozone is derived from the Greek word óζειν ...
Ozone is an oxygen molecule with three atoms that has different roles in the atmosphere and on Earth. Learn about its history, smell, health risks, ozone layer, and applications in this article.
What is the Difference Between Ground-Level and Stratospheric Ozone? The ozone that CARB regulates as an air pollutant is produced close to the ground level, where people live, exercise and breathe. A layer of ozone high up in the atmosphere is called stratospheric ozone.
Ozone (O 3) is a molecule in which three atoms of oxygen are bonded together. The oxygen gas in the air we breathe has two oxygen atoms bonded together (O 2). Ozone is relatively unstable and releases its third oxygen atom readily so it oxidizes and burns things more readily than oxygen gas. This characteristic makes ozone in the troposphere (ground-level ozone) an air pollutant (see section 6 ...
Learn about the difference between good and bad ozone, how ground-level ozone forms and harms health and environment, and what actions can reduce ozone pollution. Find out the ozone levels in your community and the national standards and regulations for ozone control.