Is there smog in Nanjing?

Question 1: Why are there so many foggy days in Nanjing? According to their investigation in Jiangbei District of Nanjing, about 60% of air pollutants are composed of sulfate, nitrate and black carbon aerosol, and black carbon aerosol accounts for about one third, which is caused by industrial pollution, automobile exhaust and biomass combustion.

PM 1 in the air is the chief culprit of smog. Black carbon aerosol is one of them. PM 1 absorbs light on the one hand and scatters light on the other. Its abundance makes the sky gloomy and loses its original color-the blue that we miss most. Even the sky can be "black"? The reporters marveled: it is really a "senior black".

According to research, black carbon aerosol and its "associates"-sulfate, nitrate, organic carbon and so on. Thick brown clouds often form at high altitude, which has an impact on the regional and even global climate system.

At present, the "black carbon aerosol" pollution over Nanjing is serious, and the pollution in winter is about 5 times to 10 times that in summer. It's almost summer now, and once the straw is burned in the surrounding areas, the black carbon aerosol is more likely to increase by nearly 20 times in a short time. To make matters worse, as mentioned above, because the black carbon itself will heat up due to light absorption, leading to inversion, this gray "big cover" cloud will cover the pollutants below, resulting in its "long reluctance to disperse".

Question 2: Why are there so many foggy days in Nanjing? According to their investigation in Jiangbei District of Nanjing, about 60% of air pollutants are composed of sulfate, nitrate and black carbon aerosol, and black carbon aerosol accounts for about one third, which is caused by industrial pollution, automobile exhaust and biomass combustion.

PM 1 in the air is the chief culprit of smog. Black carbon aerosol is one of them. PM 1 absorbs light on the one hand and scatters light on the other. Its abundance makes the sky gloomy and loses its original blue. Even the sky can be "black"? The reporters marveled: What a "senior black".

According to research, black carbon aerosol and its companion organisms-sulfate, nitrate, organic carbon and so on. Thick brown clouds often form at high altitude, which has an impact on the regional and even global climate system.

At present, the "black carbon aerosol" pollution over Nanjing is serious, and the pollution in winter is about 5 times to 10 times that in summer. It's almost summer now, and once the straw is burned in the surrounding areas, the black carbon aerosol is more likely to increase by nearly 20 times in a short time. To make matters worse, as mentioned above, the black carbon itself will heat up due to light absorption, which will cause inversion and make this gray "big cover" bigger.

Question 3: Is the smog in Nanjing really serious or more serious? In 20 16, the number of cities with severe smog in China ranked 38th, which was still relatively high.

China's smog cities ranked 20 16.

Dyspnea index

City ranking

Annual average value of PM2.5 (μ g/m3)

1

Xingtai

13 1.4

2

Baoding

127.2

three

Shijiazhuang

122.6

four

Handan

1 14.2

five

Hengshui

107.6

six

Texas

106.0

seven

Heze

100.6

eight

Liaocheng

99.8

nine

Langfang

99.3

10

Tangshan

98.4

1 1

Anyang

94.6

12

Zibo

94.6

13

Laiwu

93.4

14

Yichang

92. 1

15

Linyi

9 1.9

16

Jinan

9 1.0

17

Jingzhou

88.8

18

Jining

88.2

19

Cangzhou

88.0

20

Zhengzhou

87.6

2 1

Zaozhuang

87.6

22

table mountain

87.3

23

Shouguang

86.3

24

Tianjin

85.8

25

Binzhou

85.4

26

Beijing

83.2

27

open

82.2

28

Hefei

80.0

29

Wuhan

79.5

30

Jiaozuo

78.2

3 1

Weifang

78.2

32

Dongying

77.3

33

Tai ' an

77.0

34

Xi'an

75.7

35

Sanmen Gorge

75.5

36

Changsha

75.0

37

Weinan

74.2

38

Nanjing

73.7

39

Zigong

73. 1

40

Chengdu

72.8

4 1

Luoyang

72.8

Forty two.

Harbin

72.5

43

Jiangyin

7 1.6

Forty-four

Xianyang

7 1.6

45

Zhuzhou

7 1.6

46

Xiangtan

7 1.4

47

Taizhou

7 1.0

48

Shenyang

70.9

Forty nine

Korla

70. 1

50

Anshan

69.9

5 1

Baoji

69.5

Fifty two

Nanchong

69.4

53

Jurong

68.9

54

Changde

68.6

55

Yangquan

68. 1

Fifty-six

Taiyuan

67.7

57

Suqian

67.6

58

Wuhu

67.5

59

Changzhi ... >>

Question 4: Why are there so many foggy days in Nanjing, but the pollution is too serious? Now you have to wear a mask when you go out, and you are afraid to go out. I'm not afraid to wear a nine-headed eagle mask. At present, the mask filter on the market is unique. The most important function of adding refined activated carbon particles is to adsorb formaldehyde, pm2.5 and automobile exhaust and isolate bacteria to 98%. The safety protection level is higher.

Question 5: What's the weather like in Nanjing now? Is there fog? There is no fog.

65438+February 0 1 (today) day: cloudy, night: cloudy, 10 ~ 16℃ southeast breeze;

65438+February 02 (Wednesday) Day: cloudy, night: cloudy, 3 ~ 13℃ northwest wind 4-5;

65438+February 3 (Thursday) Day: cloudy, night: cloudy, 0 ~ 10℃ northwest wind 3-4.

Question 6: Why is the smog in Nanjing very serious recently? The whole country is fine and serious. How can Nanjing be spared?

Question 7: Is the smog in Nanjing serious? Why is the smog in Nanjing red? The warning level is divided into three levels: yellow represents moderate pollution; Orange represents heavy pollution; Red represents serious pollution. At present, most cities in China are surrounded by smog, and environmental protection departments pay more and more attention to smog pollution and increase the intensity of smog control. 99 Mine's environmental protection fog gun car specializes in smog control. It is said that the effect is not bad, which was recently confirmed in Hunan Satellite TV's "News Seeking Truth" program.

Question 8: Why is Beijing responsible for the smog in Shanghai and Nanjing? Who said that? It is true that coal is burned around Beijing, and it is also true that the traffic of motor vehicles is large.