The Clear and Blue Sky
With the broadcast of og,this long-standing environmental problems,become the hot discussion once again.According to some reports,the frequent appearances of og obscure the clarity of the sky recently.Some people drove slowly on the road because they could not see clearly. They also suffered from many illnesses caused by og.
Smog is the general expression of various higher-than-permitted suspended particulate matter (such as PM2.5) in the atmosphere,which express the state of air pollution .It contains fog and haze,both of them are disastrous weather. Fog consists of a large number of tiny water or ice crystals.It’s actually a harmless natural phenomena that makes visibility worse .Haze is air pollution in which is mixed up with dust, oke and other dry particles. The components that make up haze may have negative effect on people's health, especially for children and the old.
So it’s necessary to find out the reason why leads to og and work out the resolution.If we trace the cause for og weather ,the main points are natural causes that include windblown dust and manmade causes which include three aspects.Firstly,china 's air quality standards are rather lax and evaluation factors are limited.Secondly,some enterprises just go for economic interests instead of observing relevant law and regulations.Obsolete equipment、industrial el burning and manufacturing operations are high likely to emit much wasted air.Thirdly,across our society ,relevant protection awareness has not built up.Just for the sake of convience to go out,people rely and on travelling and working by car while car is the main cause for og.
To settle this problem,a series of meaures should be taken as follows.Primarily,we should establish a sound control system of og. Not only can environmental protection departments strenen air monitor,but government should enact strict laws and regulations.Moreover,Reduce pollution sources is the ndamental solution to cut air pollutants. For example,we can reduce the amount of el vehicles or close down high polluting enterprises.Dloping green and energy-saving energy can lower the emission of og.Last but not least, People should do personal protection.They need to reduce the time for outdoor sports and pay attention to rest in og days.Everyone all over the country should take measures to reduce the og weather. We can use public transport such as the bus and the underground so that the number of cars will be limited.Also,people should plant trees. As far as I’m concerned ,if we work together to do such measures ,og weather will vanish completely and we will get clear and blue sky.
