Some parents in Beijing are worried that the haze will make money for school air purifiers

The people of Beijing who have opened their curtains once and for all these days have finally been able to enjoy Pik Wan's surprise today. First light rain, after the north wind, under the baptism of wind and rain, so that the capital lost the strong blue sky and white clouds for a week, disappeared in one fell swoop. At 24 o'clock yesterday, the city released an emergency warning of heavy air pollution, and the heavy pollution weather lasting for seven days ended. From the beginning of today to March 6th, there was no chance for Haze to make a comeback.

From the 20th to the yesterday, the air quality has been hovering between severe pollution and severe pollution. The air quality during the day yesterday was perhaps the worst in a few days. The PM2.5 hour concentration value of most monitoring stations exceeded 500 μg/m3, and the concentration at Changping and Yanqing at noon was 589 μg/m3.

At 15 o'clock in the afternoon yesterday, the cold air striker started from the mountains in the northwest and gradually moved to the southeast. Wherever the cold air goes, it is crushed and decayed. The fog retreats. Yanqing, Changping, Mentougou, Shijingshan, etc. “Relay” lifts the warning. The top of the Buddha was snowfall, and the city’s tribal drizzles; as the precipitation gradually ended, the cold air body took a trip to the capital. In the first half of the previous night, the north winds of the 3rd and 4th levels took control of the stubborn haze of the entire city for a full week.

Since 12:00 on the morning of February 21, the yellow warning level of heavy air pollution rose to orange. At 16:30 on the 21st, the city weather station raised the warning from yellow to orange. As of yesterday evening, both orange warnings exceeded 120 hours.

"It will be sunny tomorrow, and the north wind will be 34 grades." The long-lost word "Qing" appeared in the weather forecast at 17 o'clock yesterday and it can be regarded as a word that touched the people of Beijing. Today, the air quality will be significantly improved. The air quality in Chengliu District, Tongzhou, Yizhuang, Daxing, Mentougou, Fangshan, Changping and Yanqing is good, and the air quality in Huairou, Miyun, Shunyi, and Pinggu is excellent.

Cold air into Beijing became a big star

The cold air and the north wind became the “stars” that touched the hearts of the people yesterday. The route to Beijing was closely followed by “fans” who were longing for dispersal.

Municipal Meteorological Bureau official micro-meteorological Beijing broadcasted in real time yesterday. At 6:30 yesterday morning, “The north wind has reached the bottom of his eye and arrived in Hebei. He can't stand it. He can endure it!” At 8:50, “the unanimous northwest wind is directed at the capital!” 10 At 50 minutes, “the north wind is in Hebei, and the rain clouds are in Hebei, and the haze can't grow!” At about 14:30, “The Buddha tops snow! The maximum instantaneous wind speed reached 11.1 meters/second.” 15 At 23, "The cold air forward has reached the mountains in the northwest of Beijing." At 15:44, "the warm air is in the confrontation between Yanqing and Yanqing." At 16 o'clock, "It rained near the weather bureau too!"

Yesterday afternoon, the Beijing-Tianjin-Hebei Environment and Meteorological Center issued a forecast that today's air quality is good, suitable for outdoor activities and room ventilation. On the forecast map of air pollution meteorological conditions, the "green" of the city's map is very moving.

Expert statement

Where did you go?

The cold air came, and the vastness of the ripples dissipated. Where did they go?

Some netizens suspect that the north is not blowing to the south? Zhang Fanghua, chief forecaster of the Central Meteorological Observatory, explained that the spread of earthworms is both horizontal and vertical, and there is also precipitation and decomposition with precipitation. "The puppets in the north cannot be blown to the south on a large scale."

Zhang Dawei, Beijing Municipal Environmental Monitoring Center, said that this year's pollution process was less than that of last year, but it lasted for a long time. In this pollution process, the composition of PM2.5 is still dominated by organic matter, sulfate, and nitrate. The pollution brought by coal and motor vehicles cannot be overlooked, and the discharge of pollutants is too large to exceed the environmental carrying capacity. In addition, heavy pollution also causes regional transmission, which means that pollutants in Tianjin, Hebei and other places are affected by meteorological conditions. So long as the southerly wind or easterly wind is blown, the pollutants in these areas can easily “blow” into Beijing. .

Foggy days classroom window open parents worried

Some parents got together to buy air purifiers

City Board of Education: There are no rigid rules for window opening and closing

“It is not like outdoor activities that open the windows with fog and haze!” Many parents report that in the case of heavy air pollution, the classrooms of the schools still open windows, and they fear that the children’s bodies will be affected. Yesterday, a reporter from the Beijing Morning Post visited several elementary schools in Haidian District and Xicheng District and found that indeed many classroom windows were open. Some school parents have pooled money to buy air purifiers for the classroom. The Beijing Municipal Education Commission stated that the district boarders and county education committees have been instructed to strictly implement the orange early-warning emergency response measures, and that primary schools and kindergartens stop outdoor activities. However, there are no hard rules for the opening and closing of windows.

What is the difference with outdoor

“The air pollution is so serious. The classroom still has windows. Is there any difference between being outdoors?” In front of Wanshou Temple Elementary School in Haidian District, Beijing, a parent of the children complained. The reporter found that most of the windows in the teaching building next to Fahuasi Road were closed, but in the second and third floors of the building, two windows were greatly opened; on the east side of the third floor, two adjacent windows were Halfway through, there were several sunflowers on the windowsill; in addition, there were three windows with small seams. Standing on the road, you can still hear the laughter from the students.

At the Weigongcun Primary School in Haidian District, Beijing, there is also a window in the teaching building. In the middle of the school building facing the school gate, there is a window on the second floor that is half open, and a window on the third floor has a small gap. On the playground, students can't see playing. The director of the moral education department of the school said that in accordance with the relevant regulations, the school has stopped outdoor activities, exercises, physical education classes, etc. are all performed indoors. “It may be a window opened by the children themselves and the teacher will promptly close it after discovering it.”

In this case, the reporter consulted the Beijing Municipal Education Commission, and the relevant person in charge said: "We have not made rigid rules as to whether we must close the windows."

70 yuan per person to buy purifier

Ms. Liu, a parent at a primary school near Madian Bridge in Xicheng District, told reporters that when the children were picked up from school on the 23rd, they found a window in the classroom was open. “Listen to the children and said that these windows have not been closed during the class.” “But if you keep It's not a good job. There are more than 40 children in a classroom and it's not breathable."

“After returning home, parents talked about the incident in the group. Everyone asked if they could raise funds to buy an air purifier in the classroom.” To her surprise, 35 people were active in less than 3 hours. In response, “then 44 parents in the class reported the name, the cost of the purifier, the socket and the expected maintenance cost in the future were a total of 3,080 yuan, and they were distributed at a price of 70 yuan per person. Someone immediately went to order and the purifier could send it tomorrow. In the classroom, we are relieved."