Ozone
Ozone (O3) is the triatomic form of oxygen. It is a gaseous atmospheric constituent.
The ozone layer is a layer of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometres above Earth.
Ozone depleting substances are man-made chemicals that damage the ozone layer. They have contributed to the formation of the 'ozone hole' over the Antarctic.
The emissions of ozone depleting substances increased in the middle to late 20th century, linked to the use of chemicals such as Chlorofluorocarbons (CFCs) in refrigeration, industrial cleaning, foam blowing and air conditioning.
As a result of the threat of increased ozone depletion, an international agreement was formulated in 1987, known as the Montreal Protocol on Substances that Deplete the Ozone Layer, to reduce the worldwide use of ozone depleting substances.
For more information see: Ozone depleting substances.
NB The glossary of statistical terms, published by the Organisation for Economic Co-operation and Development (OECD), defines ground-level ozone as: ‘…ozone present as a secondary pollutant in the lower atmosphere, where its formation can be enhanced by other pollutants. It is highly toxic at levels above 0.1 parts per million (p.p.m.).’
[edit] Related articles on Designing Buildings
Featured articles and news
Listed despite problems with its design.
Zen and the art of cycling exploration.
Design Council Homes Taskforce launched
To support government 1.5 million homes target within UK climate commitments.
The story of this knowledge quarter building.
In ecology, in hydrology, in biology and in architecture.
Creating environments that promote physical, mental, and social well-being.
UK cases of neutral current diversion
Research project looks for example contributions.
Overstocking and macro-economics cause a decline.
The 2024 update of the Common Assessment Standard
Demonstrating organisational capability’ to fulfil roles under the Building Safety Act.
56 recommendations for a better built environment
Published by the CIC ahead of the King’s Speech.
SkillELECTRIC Top 8 Competitors Named
in annual search for the UK’s best student electrician.
CIOB Diversity and Inclusion technical information sheet
Step-by-step guide on implementing D and I practices.
Conservation and the Indian City. Book review.
Reversibility in conservation ethics
Learning from painting conservation.
Where It's AT Podcast launched!
New CIAT Architectural Technology Podcast goes live.