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The heating season is the period of high incidence of smog.
Although the country has done a lot of countermeasures before then, the smog is still attacking wantonly
.
Not only is air pollution in many cities severe, but PM2.
do not doubt! This is the height of haze raging! clear! Figure!
When the smog is surging, when will the smog disappear?
In the early morning of December 20, 2016, the urban area of Handan City, Hebei Province was shrouded in smog
.
North China ushered in the worst regional heavy pollution since this winter, and dozens of cities including Beijing, Tianjin and Shijiazhuang sounded "alerts
At 6 o'clock that day, the Central Meteorological Observatory issued a double orange haze warning: from the morning to the morning of the 20th, central and southern Beijing, Tianjin, central and southern Hebei, Shandong, most of Henan, northern Jiangsu, central and eastern Anhui, central Guizhou, central and southern Hunan, and Guangxi There is heavy fog in the north, western Liaoning and other places.
Among them, some areas in central and southern Beijing, Tianjin, central and southern Hebei, northwestern mountains, northern Henan, and northern Jiangsu have strong dense fog with a visibility of less than 200 meters.
Very strong fog with visibility below 50 meters
.
From 08:00 on the 20th to 08:00 on the 21st, central and southern Beijing, Tianjin, central and southern Hebei, central and southern Shanxi, central and western Shandong, most of Henan, Shaanxi Guanzhong, northern Hubei, northern Jiangsu and Anhui, central and western Liaoning, central Jilin and other places There are moderate hazes, including central and southern Beijing, Tianjin, central and southern Hebei, central and northern Henan, central and western Shandong, southwestern Shanxi, Guanzhong in Shaanxi, northern Jiangsu and Anhui, and central and western Liaoning
Smog control calls for refined monitoring
When the clouds are cleared, the haze control calls for refined monitoring
The primary culprit of haze weather is fine particulate matter in the atmosphere, which is represented by PM2.
5
.
It is understood that atmospheric fine particles exist for a long time in the atmospheric environment, have significant mobility and are easily absorbed by the human body
Therefore, China's environmental protection work has an increasingly strong demand for rapid, real-time and continuous perception of the composition of atmospheric fine particles.
The source analysis of atmospheric fine particles based on chemical composition analysis is urgently needed
.
However, only monitoring the concentration of PM2.
In addition, atmospheric pollutant monitoring is different from other monitoring.
Because the weather often changes, the monitoring of atmospheric pollutants also needs to meet the requirements of immediacy, reliability and accuracy
.
All of these put forward new requirements for existing monitoring equipment
Smog control must be scientifically first.
Due to the complicated sources of China's PM2.
5, the unclear formation principles, and backward observation and analysis equipment, it is difficult to formulate scientific and reasonable control plans
.
At this time, do not blindly adopt foreign monitoring technology and copy foreign regulatory standards
Controlling smog is a long-term process.
We cannot wait for the wind to come, but rely on human efforts
.
London has long lost its "fog city" hat, and we must not let it be worn on our heads
Controlling smog is not only the responsibility of the government, but also the common responsibility of every citizen under the same blue sky
.
Rather than being sad and joking in the face of the smog, it is better to act, starting with changing yourself, starting with every possible "small action", one more bus trip, more walking, and one more day of low-carbon life.
It's not difficult
.
At present, the heating season is still going on, and the haze control situation is still grim, and we still need to make more efforts
.
From the government to the enterprises to the citizens, we all join hands in joint prevention and co-governance.
We will surely win the battle against the haze and recreate the blue sky and white clouds through the haze
.
