Weifang friends notice 'fog' these days is very big, in fact this is not a 'fog', but 'smog'!
The difference between fog and haze how?
Prevent mist haze mask
s below small make up with you about details.
One, the size of the moisture content moisture content of 90% or more is called fog, water content less than 80% of the haze.
Second, if the target visibility horizontal visibility to less than 1 km, is the mist;
Horizontal visibility 1 km to 10 km, known as the mist or ailing;
Horizontal visibility is less than 10 km, and is caused by dust particles, is haze or gray haze.
Three, resolution fog thickness of only a few tens of meters to 200 meters, the bully is 1 km to 3 km;
The fog of the color is ivory, bluish white or pure white, haze is yellow, orange and gray;
The boundary of the fog is very clear, the 'fog' area is likely to be clear, but the haze, the boundary is not obvious with the surrounding environment.
According to imo regulations, reduce visibility to less than 1 km, called the fog, visibility in 1 - known as the mist of 10 km.
Make the air turbidity and haze, horizontal visibility to less than 10 km of a weather phenomenon, the diameter of the droplets are more for 4 a 30 microns, the number of droplets in a unit volume of air is usually 100-102 / cm3, general moisture content less than 0.
Thick fog droplets concentration can reach 500 / cm 3, moisture content up to 1 g/m3.
In a nutshell is to compare the pure water vapor produced by weather phenomenon called fog.
Water vapor contains other substances or floater called haze weather.
Haze is generally referred to as the fog and haze, is a weather phenomenon, which is also called gray haze,
, refers to the dust in the air, sulfuric acid, nitric acid, organic hydrocarbons such as a large number of very small dry dust particles floating in the air evenly and make the air turbidity, blurry vision and led to the deterioration of visibility.
Because of the fog haze has harm to the human body, the haze contains hundreds of atmospheric chemistry, particulate matter, they enter the body when people without a guard against respiratory tract and lung, causing respiratory diseases, diseases of the cardiovascular system, blood system, reproductive system diseases, such as strep throat, bronchitis, emphysema, asthma, rhinitis inflammation, such as long-term in this environment will also cause lung cancer, myocardial ischemia and injury.
So small make up out of the door to keep ready to prevent mist haze masks, protect your body!
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