what is the name of the fog like layer which appears in winter and envelops the atmosphere?
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I think it is known as mist.
Here is how it is formed --
Mist is a phenomenon caused by small droplets of water suspended in air. Physically, it is an example of a dispersion. It is most commonly seen where warm, moist air meets sudden cooling, such as in exhaled air in the winter, or when throwing water onto the hot stove of a sauna.
Mist generally have no harmful effects but it becomes harmful when it gets mixed with pollution and form Smog.
Harmful effects of Smog --
Anyone who engages in strenuous outdoor activity—from jogging to manual labor—may suffer smog-related health effects. Physical activity causes people to breathe faster and more deeply, exposing their lungs to more ozone and other pollutants. Four groups of people are particularly sensitive to ozone and other air pollutants in smog:
Children—Active children run the highest risks from exposure to smog, as children spend a lot of time playing outside. As a group, children are also more prone to asthma—the most common chronic disease for children—and other respiratory ailments than adults.
Adults who are active outdoors—Healthy adults of any age who exercise or work outdoors are considered at higher risk from smog.
People with respiratory diseases—People with asthma or other chronic respiratory diseases are more sensitive and vulnerable to the effects of ozone. Typically, they will experience adverse effects sooner and at lower levels of exposure than those who are less sensitive.
People with unusual susceptibility to ozone—Some otherwise healthy people are simply more sensitive to the pollutants in smog than other people and may experience more adverse health effects from exposure.
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Here is how it is formed --
Mist is a phenomenon caused by small droplets of water suspended in air. Physically, it is an example of a dispersion. It is most commonly seen where warm, moist air meets sudden cooling, such as in exhaled air in the winter, or when throwing water onto the hot stove of a sauna.
Mist generally have no harmful effects but it becomes harmful when it gets mixed with pollution and form Smog.
Harmful effects of Smog --
Anyone who engages in strenuous outdoor activity—from jogging to manual labor—may suffer smog-related health effects. Physical activity causes people to breathe faster and more deeply, exposing their lungs to more ozone and other pollutants. Four groups of people are particularly sensitive to ozone and other air pollutants in smog:
Children—Active children run the highest risks from exposure to smog, as children spend a lot of time playing outside. As a group, children are also more prone to asthma—the most common chronic disease for children—and other respiratory ailments than adults.
Adults who are active outdoors—Healthy adults of any age who exercise or work outdoors are considered at higher risk from smog.
People with respiratory diseases—People with asthma or other chronic respiratory diseases are more sensitive and vulnerable to the effects of ozone. Typically, they will experience adverse effects sooner and at lower levels of exposure than those who are less sensitive.
People with unusual susceptibility to ozone—Some otherwise healthy people are simply more sensitive to the pollutants in smog than other people and may experience more adverse health effects from exposure.
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Anonymous:
but how it us formed and what are its harmful effect
Answered by
1
There is no thick fog-like layer that envelopes the Earth, only when it is winter in a few locations. Fog is clouds, only at VERY low altitude. There are rarely any clouds about the troposphere, but when there are:noctilucent cloud or polar stratospheric cloud or cirrus cloud
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