Where is the depletion of the ozone layer most significant?
Antarctica
The thinning is most pronounced in the polar regions, especially over Antarctica. Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches Earth's surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune system damage.
What region has the most ozone?
Ozone location.
Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer” (see Figure Q1-2).
Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer” (see Figure Q1-2).
Where is the largest ozone hole located?
Antarctica
A NASA instrument has detected an Antarctic ozone "hole" (what scientists call an "ozone depletion area") that is three times larger than the entire land mass of the United States—the largest such area ever observed.
Where is most ozone located quizlet?
Most of earth's ozone resides in the stratosphere, the layer of the athmosphere that is more than 10km above surface. About 90% of athmospheric ozone is contained in the stratospheric "ozone layer", which shields earth's surface from harmful ultraviolet radiation emitted by the sun.
What cities have the most ozone?
- Los Angeles-Long Beach, California.
- Visalia, California.
- Bakersfield, California.
- Fresno-Madera-Hanford, California.
- Sacramento-Roseville, California.
- San Diego-Chula Vista-Carlsbad, California.
- Phoenix-Mesa, Arizona.
- San Jose-San Francisco-Oakland, California.
Why is ozone higher in rural areas?
“Ozone levels tend to be higher in rural areas where there are less local emissions of nitrogen dioxides to destroy any ozone that has formed in the atmosphere.”Jan 23, 2006
Where is ozone hole located?
Antarctica
What we call the ozone hole is a thinning of the protective ozone layer in the stratosphere (the upper layer of Earth's atmosphere) above Antarctica that begins every September. Chlorine and bromine derived from human-produced compounds are released from reactions on high-altitude polar clouds.Oct 27, 2021
Which layer in the atmosphere has the highest concentration of ozone?
Most atmospheric ozone is concentrated in a layer in the stratosphere, about 9 to 18 miles (15 to 30 km) above the Earth's surface (see the figure below).Oct 7, 2021
Why is the ozone layer depletion in Antarctica?
The severe depletion of the Antarctic ozone layer known as the “ozone hole” occurs because of the special atmospheric and chemical conditions that exist there and nowhere else on the globe. The very low winter temperatures in the Antarctic stratosphere cause polar stratospheric clouds (PSCs) to form.
Where is ozone concentrated in the atmosphere quizlet?
Terms in this set (9)
exosphere a region in the upper stratosphere where ozone is concentrated.
exosphere a region in the upper stratosphere where ozone is concentrated.
Which layer is the mesosphere quizlet?
The Mesosphere is the third layer of the atmosphere, extending from 50 - 80 km.
Where is the ozone layer Where are the ozone holes quizlet?
The Ozone Layer is located within the Ozonosphere within the Stratosphere. Ozone is made of 3 atom oxygen molecules. When produced in the troposphere ozone damages human tissue and vegetation, and corrodes buildings. This is a result of depleted stratospheric ozone.
The Connection Between Ozone Layer Depletion and UVB Radiation
Reduced ozone levels as a result of ozone depletionA chemical destruction of the stratospheric ozone layer beyond natural reactions. Stratospheric ozone is constantly being created and destroyed through natural cycles. Various ozone-depleting substances (ODS), however, accelerate the destruction processes, resul…
Effects on Human Health
- Ozone layer depletion increases the amount of UVB that reaches the Earth’s surface. Laboratory and epidemiological studies demonstrate that UVB causes non-melanoma skin cancer and plays a major role in malignant melanoma development. In addition, UVB has been linked to the development of cataracts, a clouding of the eye’s lens. EPA uses the Atmospheric and Health Eff…
Effects on Plants
- UVB radiation affects the physiological and developmental processes of plants. Despite mechanisms to reduce or repair these effects and an ability to adapt to increased levels of UVB, plant growth can be directly affected by UVB radiation. Indirect changes caused by UVB (such as changes in plant form, how nutrients are distributed within the plant, timing of developmental ph…
Effects on Marine Ecosystems
- Phytoplankton form the foundation of aquatic food webs. Phytoplankton productivity is limited to the euphotic zone, the upper layer of the water column in which there is sufficient sunlight to support net productivity. Exposure to solar UVB radiation has been shown to affect both orientation and motility in phytoplankton, resulting in reduced survival rates for these organisms…
Effects on Biogeochemical Cycles
- Increases in UVB radiation could affect terrestrial and aquatic biogeochemical cycles, thus altering both sources and sinks of greenhouse and chemically important trace gases (e.g., carbon dioxide, carbon monoxide, carbonyl sulfide, ozone, and possibly other gases). These potential changes would contribute to biosphere-atmosphere feedbacks that mitigate or amplify the atmo…
Effects on Materials
- Synthetic polymers, naturally occurring biopolymers, as well as some other materials of commercial interest are adversely affected by UVB radiation. Today's materials are somewhat protected from UVB by special additives. Yet, increases in UVB levels will accelerate their breakdown, limiting the length of time for which they are useful outdoors.
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