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Terms in this set (11) how is “good” ozone formed? … stratospheric clouds form during the winter, but then the sun comes out in the spring and uv rays break through the clouds, CFCs in the atmosphere react with sunlight and deplete the ozone layer.
Terms in this set (12)
Good ozone is found in the stratosphere and good ozone is decreasing in our protective ozone layer.
Instruments use optical techniques, with the Sun and lasers as light sources; detect the micro- wave emissions from ozone; or use chemical reactions that are unique to ozone. At many locations over the globe, regular measurements are made to monitor total ozone amounts and their variations over time.
Unlike stratospheric ozone, which forms naturally in the upper atmosphere and protects us from the sun’s harmful ultraviolet rays, ground-level (or tropospheric) ozone is created through the interactions of man-made (and natural) emissions of volatile organic compounds and nitrogen oxides in the presence of heat and …
Because the sunlight (including UV) is most intense in the tropics, you might expect the most ozone over that region. In fact, however, the average ozone concentrations throughout the year are lowest in the tropics, because the ozone in the stratosphere doesn’t stay where it is formed.
Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
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.
Atmospheric ozone absorbs ultraviolet (UV) radiation from the sun, particularly harmful UVB-type rays. Exposure to UVB radiation is linked with increased risk of skin cancer and cataracts, as well as damage to plants and marine ecosystems.
Ozone acts as an important infrared absorber (greenhouse gas), particularly in the upper troposphere, and also is an absorber of solar ultraviolet (UV) radiation.
Ozone occurs in two layers of the atmosphere. The layer closest to the Earth’s surface is the troposphere. Here, ground- level or “bad” ozone is an air pollutant that is harmful to breathe and it damages crops, trees and other vegetation. … Once released into the air these ozone-depleting substances degrade very slowly.
In the troposphere, near the Earth’s surface, human activities lead to ozone concentrations several times higher than the natural background level. Too much of this ground-level ozone is ‘bad’ as it is harmful to breathe and also damages vegetation.
Ozone is formed when oxygen absorbs UV radiation with wavelengths between 0.2 and 0.3 nm. … Why is stratospheric ozone beneficial to life on Earth, whereas tropospheric (ground-level) ozone is not? Stratospheric ozone protects us from the Sun’s ultraviolet radiation.
Ozone in the stratosphere filters ultraviolet light from the sun. So ozone protects us from damaging solar radiation. … UV-B & UV-C is well filtered out by O3 in the stratosphere.
Explanation: ozone in stratosphere is formed by an oxygen molecules . ozone in troposphere is formed by VOC and dinitrogen ,which is harmful for us. ozone in stratosphere is beneficial for us.
Atmospheric ozone has two effects on the temperature balance of the Earth. It absorbs solar ultraviolet radiation, which heats the stratosphere. It also absorbs infrared radiation emitted by the Earth’s surface, effectively trapping heat in the troposphere.
Ozone, or O3, is a bluish colored gas. On ground-level ozone is an air pollutant, but in the stratosphere it protects living things from dangerous ultraviolet rays.
The varia- tions are caused by large-scale movements of stratospheric air and the chemical production and destruction of ozone. Total ozone is generally lowest at the equator and highest in polar regions.
The effects of ozone depletion include skin cancer, eye cataracts, immunosuppression, increased photochemical smog, decreased crop yield, property damage, and other environmental effects.
Total ozone gradually returns to 1980 values in 2040, peaks around 2060 and decreases again until the end of the century. The different total ozone behavior in the tropics is due to the changing balance between ozone increases in the upper stratosphere and decreases in the lower strato- sphere.
What is the difference between ambient and stratospheric ozone? … The ambient ozone is a criteria air pollutant that impacts both human morbidity and mortality while the stratospheric ozone absorbs the sun’s UV radiations. However, the stratospheric ozone is being destroyed by chlorine-based aerosols.
What is the difference between stratospheric and tropospheric ozone? … Stratospheric ozone protects Earth from harmful UV radiation. Tropospheric ozone = smog (toxic). This is all measured throughout the atmosphere vertically in a “column” in Dobson Units (300 DU on average, which is equal to one layer about 3mm thick).
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