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The Beijing-Tianjin-Hebei air pollution case has finally been "solved"! Chemical plants no longer need to "back the pot"!

 Last Update: 2021-03-28
 Source: Internet
 Author: User

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After three years of concentrated research, the source of heavy pollution in Beijing, Tianjin and Hebei has been found! Clarify the four major causes and three pollution sources, scientifically and accurately control.

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02 Bai Yansong: The next question may involve such a change.
Taking Beijing as an example, the number of heavily polluted days in 2016 was 34 days, which has become 4 days in 2019, and the number of heavily polluted days in the entire Beijing-Tianjin-Hebei region has also dropped a lot.
Everyone will think that this case was solved a bit late? Because it has improved a lot now.

Chai Fahe: Yes, the report released today is the result of our three-year research.

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03 Bai Yansong: If the first reason is not beyond your expectations, the second and fourth reasons are relatively professional.
Let us first talk about the second reason: the high concentration of nitrogen oxides and volatile organic compounds in the atmosphere, what does this mean? Because this is too professional, ordinary people may not understand it, can you give us a popular interpretation?

Chai Fahe: First of all, strong atmospheric oxidation is one of the most critical factors in the formation of secondary particulate matter.

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04 Bai Yansong: What does the third reason mean? Are there three channels in the entire Beijing-Tianjin-Hebei region that are particularly conducive to the formation of PM2.
5 or polluted weather?

Chai Fahe: Yes, you can find that when heavy pollution occurs in the Beijing-Tianjin-Hebei region and the surrounding areas, the general situation is southward wind, and the wind speed is not very high, and then there is both transportation and local accumulation.

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05 Bai Yansong: Director Chai, as you can see in today’s press conference, the three major sources of PM2.
5 contribution in the fall and winter of 2018-2019 are the first in industry, second in civilian coal, third in diesel vehicles, and third in cities.
Resident cars are not among the three sources, but ordinary people bear the price of limited number.

Is this an unjust case? Are the cars of the residents in the city a bad guy? Can you just leave it alone in the future?
Chai Fahe: The three major sources of PM2.

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06 Bai Yansong: Director Chai, in fact, when you answered your first question, you talked about the release of such scientific research results, so many people and time are devoted to governance in the future.
So how can the results of this study help us to better manage? Can we expect that the number of days of heavy pollution in the Beijing-Tianjin-Hebei region and the surrounding areas will become less and less in the future, until it doesn't take too long?

Chai Fahe: Yes, this is what everyone expects.

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07 Bai Yansong: In fact, during the three-year research process, we have influenced a lot of decision-making, but such a scientific conclusion, including the research process, should be the most important thing for government officials and policy makers to see so that they can scientifically Policy?
Chai Fahe: Yes.
We are also intensifying the publicity of the research results, communicating with local governments and entrepreneurs in various ways, so that everyone can recognize the current situation we are in, and work together within the scope of their respective responsibilities.
A socialized team that the whole society jointly tackles pollution or improves environmental quality together.

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08 Bai Yansong: Okay, Director Chai’s last question is actually a common discussion among ordinary people.
With this conclusion, in the future, will air pollution control depend on people or wind?

Chai Fahe: Everyone feels that after a gust of wind comes, isn't the heavy pollution gone? But what everyone doesn't know is that the formation of heavy pollution is caused by the absence of wind and the large discharge of pollutants.
Just as pollution occurred during the Spring Festival this year, everyone said that the epidemic was controlled and we were no longer active.
Why is there still pollution? We also calculated an account.
During the epidemic, our various social activities were reduced, and pollution emissions were reduced by about 30%.
However, due to extremely unfavorable weather conditions, the environmental capacity deteriorated by 50%, which eventually caused pollution.
occur.

Bai Yansong: We can only rely on people, right? Can't wait for the wind.

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