大邱廣域市的空气质量

大邱廣域市的空气质量指数(AQI)和PM2.5空气污染

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带有彩色AQI图标的IQAir地图

空气质量提供者和数据来源

数据来自

数据提供者

1

数据来源

1

Korea Environment Corporation的主页标志Korea Environment Corporation的主页标志

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天气

大邱廣域市现在的天气怎么样?

天气图标
天气晴朗
温度23°C
湿度54%
风速和风向5.7 mp/h
气压1031 mb

实时AQI城市排名

实时韩国 热门城市排名

#city美国 AQI
1 Danyang, Chungcheongbuk-do

105

2 Yangpyeong, 京畿道

93

3 Yeongju, Gyeongsangbuk-do

88

4 Jeungpyeong, Chungcheongbuk-do

86

5 Kurye, Jeollanam-do

86

6 聞慶市, Gyeongsangbuk-do

86

7 Eumseong, Chungcheongbuk-do

82

8 Imsil, Jeollabuk-do

80

9 Hwacheon, Gangwon-do

78

10 Yecheon, Gyeongsangbuk-do

76

(当地时间)

查看世界AQI排名

实时大邱廣域市 AQI排名

实时大邱廣域市空气质量排名

#station美国 AQI
1 Suchang-dong

72

2 Seoho-dong

70

3 Jincheon-dong

68

4 Daemyeong

65

5 Pyeongri-dong

65

6 Horim-dong

63

7 Hyeonpung-myeon

63

8 Igok-dong

63

9 Sinam-dong

63

10 Taejeon-dong

61

(当地时间)

查看世界AQI排名

美国 AQI

63

实时空气质量指数(AQI)
中等

表示AQI等级的人脸

概览

大邱廣域市现在的空气质量指数(AQI)是多少?

空气污染等级空气质量指数(AQI)主要污染物
中等 63 美国 AQItrendPM2.5
污染物浓度
PM2.5
18 µg/m³trend
pm10
37.5 µg/m³trend
o3
32 µg/m³trend
no2
48.9 µg/m³trend
so2
5.2 µg/m³
co
458 µg/m³trend

健康建议

大邱廣域市空气污染,如何做好防护?

开窗图标请关窗以防止室外脏空气进入室内
骑车图标敏感人群应减少室外运动

预报

大邱廣域市空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期六, 1月 16

中等 75 美国 AQI

表示AQI等级的人脸
星期日, 1月 17

优秀 45 美国 AQI

表示AQI等级的人脸
星期一, 1月 18

中等 68 美国 AQI

表示AQI等级的人脸
今天

中等 62 美国 AQI

表示AQI等级的人脸
天气图标32°19.4°
风向340度流动

4.5 mp/h

星期三, 1月 20

中等 59 美国 AQI

表示AQI等级的人脸
天气图标42.8°24.8°
风向319度流动

2.2 mp/h

星期四, 1月 21

中等 95 美国 AQI

表示AQI等级的人脸
天气图标46.4°32°
风向142度流动

0 mp/h

星期五, 1月 22

中等 95 美国 AQI

表示AQI等级的人脸
天气图标46.4°35.6°
风向344度流动

4.5 mp/h

星期六, 1月 23

优秀 50 美国 AQI

表示AQI等级的人脸
天气图标44.6°37.4°
风向50度流动

4.5 mp/h

星期日, 1月 24

中等 62 美国 AQI

表示AQI等级的人脸
天气图标44.6°37.4°
风向35度流动

4.5 mp/h

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历史

大邱廣域市历史空气质量图表

如何更好地远离空气污染侵害?

减少您在大邱廣域市 空气的污染暴露值

大邱廣域市 空气质量分析和数据

What is the air quality index of Daegu?

Daegu, or to give it its official name, Daegu Metropolitan City is a large city in South Korea. It has the third-largest metropolitan area with over 2.5 million residents and can be found on the south-eastern part of the country, approximately 80 kilometres from the coast.

At the beginning of 2021, Daegu was experiencing poor air quality which was classified as “Unhealthy for sensitive groups” with a US AQI figure of 111. The levels of pollutants were recorded as follows: PM2.5 - 39.5 µg/m³, PM10 - 145 µg/m³, ozone (O3) - 40 µg/m³, nitrogen dioxide (NO2) - 56.4 µg/m³, sulphur dioxide (SO2) - 10.5 µg/m³ and carbon monoxide (CO) - 801.5 µg/m³. With levels such as these, the advice is to close doors and windows to stop the ingress of dirty air and people of a sensitive disposition are advised to wear a mask when venturing outdoors until the air quality improves. Running an air purifier will help if there is access to one. When comparing figures for the main cities in South Korea, they all suffer from poor quality air in January, February and March.

What is the main source of Daegu’s polluted air?

As usual, in most cities throughout the world, the main source of air pollution is caused by vehicle emissions followed by emissions from industry and then road/construction dust. In order to make a difference to the air quality in the city centres, vehicles need to be restricted so as to reduce their emissions. Subsidies could be offered to persuade residents to change their vehicle to an electric-powered one. The use of public transport should also be encouraged. These modern city buses are often powered by electricity or some other clean, sustainable fuel.

Is air pollution in Daegu getting better or worse?

If the predicted concentration of ultrafine dust in the atmosphere is above a certain level, “Emergency Reduction Measures for Highly Concentrated Fine Dust*” are implemented which is a system that restricts the operation of Class 5 vehicles in order to reduce the concentration of ultrafine dust in the short term.

This happens when ultrafine dust or PM2.5 in the air exceeds a certain concentration, it is a measure to improve air quality in a short period of time, mainly issued in winter and spring when the quality of air dips below the acceptable limit.

A push service is available on smartphones to warn drivers of the imminent reduction measures. It is hoped that after this introduction in December 2019, air quality in Daegu will improve.

Electric vehicles, solar vehicles, hybrid vehicles and hydrogen-electric vehicles are excluded from the regulations because of their acceptable levels of emissions if any.

The Daegu province has the lowest precipitation compared to other large cities, so the air cleaning effect by rain is relatively low, and it is also in a basin-shaped terrain surrounded by mountains, which makes it difficult for the pollution to be carried away by the wind.

Under these circumstances, the improvement rate of fine dust in 2011 compared to the average for the three years of 2008-2010 was 9.6 per cent, compared to 6.0 per cent in Busan, 3.5 per cent in Incheon, 8.5 per cent in Gwangju, 4.3 per cent in Daejeon, and 0.0 per cent in Ulsan. Among the six metropolitan cities, it showed the greatest improvement in air quality.

This is analysed as a result of constantly pursuing extensive air quality improvement projects such as the expansion of green spaces and the suppression of dust emissions on construction sites and roads. The supply of natural gas buses (LNG), expansion of vehicle exhaust filters, and constant control of automobile exhaust gases have also helped considerably.

What can be done to improve the air quality in Daegu?

In order to contribute to the improvement of air quality through the early scrapping of vehicles that are ageing and generating a lot of smoke, particularly diesel vehicles, the Early Disposal of Old Diesel Vehicles Subsidy Support Project was implemented. Heavy-duty vehicles include dumper trucks, concrete mixer trucks and concrete pump trucks. Class 5 emission vehicles or construction machinery manufactured before 2005 whose emissions do not attain the acceptable level are also eligible. Some older diesel cars that have not been equipped with emission reduction devices or converted to low-emission engines through government subsidies are also eligible.

As part of the operation of the clean road system, a fixed sprinkling facility was installed in March 2011 to remove dust flying up from the roads of Daegu Subway Line 2 including Dalgubeol-daero, a main arterial road network which contributed significantly to the reduction of PM10.

What is the air quality like on Daegu’s subway system?

The quality of air on the subway system was examined between October and December last year in the carriages of the Daegu city train lines 1, 2 and 3. As a result of examining the indoor air quality, it was revealed that the indoor air quality was very good for all three routes, with nothing to worry about.

In an indoor air quality test, ultrafine dust or PM2.5 and carbon dioxide (CO2), which are the indoor air quality management items of public transport vehicles, were measured four times during congestion and non-congestion periods.

As a result of the test, the average concentration of ultrafine dust PM2.5 during the congestion period was 11.8 μg/m³ for Line 1, 10.4 μg/m³ for Line 2, and 7.4 μg/m³ for Line 3, much lower than the standard which is recommended to be 50 μg/m³ or less.

The average concentration of carbon dioxide (CO2) during the congestion period of which the ventilation is appropriate is 1,084 ppm (parts per million) for Line 1, 1,716 ppm for Line 2, and 1,089 ppm for Line 3, all below the recommended level of 2,500 ppm or less.

Conversely, the indoor air quality of public transportation vehicles was changed to fine dust PM10 and carbon dioxide to ultrafine dust PM2.5 and carbon dioxide with the revision of the “Indoor Air Quality Management Act” last year on 3rd April 2020. The standard was also reduced from 150 ~ 200 μg/m³ of fine dust PM10 to 50 μg/m³ of ultrafine dust PM2.5 similar to general multi-use facilities.