札幌市的空气质量

札幌市的空气质量指数(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

*IQAir的AQI是根据卫星数据建模估算 了解更多

札幌市没有地面空气监测站

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天气

札幌市现在的天气怎么样?

天气图标
天气中雨
温度44.6°C
湿度87%
风速和风向23 mp/h
气压1016 mb

实时AQI城市排名

实时日本 热门城市排名

小提示图标
#city美国 AQI
1 Chuo, 神奈川縣

68

2 Domachi, 山形县

61

3 Akebonocho, Hiroshima

59

4 Ayase, 神奈川縣

59

5 Aoe, 岡山縣

57

6 Kitatamachi, 靜岡縣

57

7 Koyo, Aichi

57

8 Miho, 靜岡縣

57

9 Minami-Soma, 福岛县

57

10 境港市, 鳥取縣

57

(当地时间)

查看世界AQI排名

实时札幌市 AQI排名

实时札幌市空气质量排名

小提示图标

基于卫星数据的城市AQI。目前札幌市没有地面监测站。

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札幌市 的网络图像

9:08, 4月 12

札幌市 有空气污染吗

9:08, 4月 12札幌市 的网络图像缩略图

美国 AQI

29 *

实时空气质量指数(AQI)
优秀

表示AQI等级的人脸

概览

札幌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
优秀 29 美国 AQIPM2.5
污染物浓度
PM2.5
7.1 µg/m³

健康建议

札幌市空气污染,如何做好防护?

开窗图标Open your windows to bring clean, fresh air indoors
骑车图标Enjoy outdoor activities

预报

札幌市空气质量指数(AQI)预报

污染等级天气温度风速和风向
今天

优秀 31 美国 AQI

表示AQI等级的人脸
天气图标53.6°44.6°
风向158度流动

15.7 mp/h

星期三, 4月 14

优秀 43 美国 AQI

表示AQI等级的人脸
天气图标46.4°33.8°
风向296度流动

11.2 mp/h

星期四, 4月 15

中等 75 美国 AQI

表示AQI等级的人脸
天气图标50°33.8°
风向270度流动

15.7 mp/h

星期五, 4月 16

中等 59 美国 AQI

表示AQI等级的人脸
天气图标53.6°39.2°
风向156度流动

15.7 mp/h

星期六, 4月 17

中等 61 美国 AQI

表示AQI等级的人脸
天气图标48.2°44.6°
风向153度流动

11.2 mp/h

星期日, 4月 18

中等 68 美国 AQI

表示AQI等级的人脸
天气图标53.6°42.8°
风向218度流动

4.5 mp/h

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历史

札幌市历史空气质量图表

如何更好地远离空气污染侵害?

减少您在札幌市 空气的污染暴露值

札幌市 空气质量分析和数据

What is the air quality index of Sapporo?

Sapporo is situated on the Japanese island of Hokkaido. It is the capital of the prefecture and the Ishikari Subprefecture. In February 2020 it has an estimated population of almost 2 million people.

In early 2021, Sapporo was enjoying a “Good” quality of air with a US AQI figure of 50. This is based on the recommendation by the World Health Organisation (WHO). Other levels of pollutants suspended in the air were: PM2.5 - 12 µg/m³, PM10 - 10 µg/m³, nitrogen dioxide (NO2) - 18.8 µg/m³ and sulphur dioxide (SO2) - 5.2 µg/m³. These figures are expressed in microns per cubic metre. With air quality as good as this, the advice is to open doors and windows to let the fresh air in and to get outside and enjoy outdoor activities.

Sapporo attained the WHO target figure for air quality in 2019 with a mean annual figure of 8.1 µg/m³. Only in February and March did the figure rise above the 10 µg/m³ when it reached a “Moderate” level of 13.6 and 13.9 µg/m³, respectively. In 2017 it also attained the WHO target with a figure of 8.4 µg/m³ and in 2018 it was 7.3 µg/m³.

What is the history of Sapporo’s polluted air?

In the mid-1950s, coal was used as the main fuel. During the winter, the sky in Sapporo would be filled with "dust" that was emitted when coal burned and the atmosphere was very dirty. In the following decade, the energy source changed from coal to oil. Heavy oil used in factories and contained large amounts of sulphur, so when it was burned, a pollutant called sulphur oxide (SO) was generated. They were being discharged from the factory chimneys. However, heavy oil with a low sulphur content began to be available and, as such, the air quality has improved.

In the 50s, studded tyres were used during the winter months to provide extra traction on the snow-covered roads. This caused "car powder" to be generated by scraping the asphalt on the road, and it became a social problem. Now that studless tires are used, this problem can be solved.

Is air pollution in Sapporo getting better or worse?

In recent years, PM2.5, a fine particulate matter, has become a problem. It can be blown in from overseas and is also a residual from the combustion of fossil fuels. These come from the exhaust gases from vehicles and also from coal-fired power stations. PM2.5 has a grain size of 2.5 microns or less and is one of the smallest particulate matter in the atmosphere. Its size is about 1/30th the thickness of a human hair. Therefore, it is a real health hazard because it is easy to get into the base of the bronchial tubes when inhaled. It is thought to be the cause of asthma, respiratory illness, and heart attacks because it easily can be transferred to the bloodstream.

The rise in PM2.5 in Sapporo from the end of February 2019 was caused by a large-scale forest fire in the Russian Far East from northern China, and it was said that it was blowing over Hokkaido Island on a westerly wind. The level of PM2.5 concentration in Hokkaido and Sapporo rose to nearly 200 at that time and was noticeable in the air when moving outdoors.

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

Due to the cold climate, fuel consumption for heating homes and other buildings increases in winter, so the air environment tends to be worse in winter than in summer. In particular, when an “inversion layer” that hinders air convection and suppresses the diffusion of pollutants is generated, it becomes difficult for pollutants in the atmosphere to diffuse in the wind.

The temperature of the atmosphere is usually higher the closer it is to the ground and lower the higher it is. However, on the contrary, a layer having a temperature higher than the temperature near the surface of the earth may be formed in the sky, and that layer is called an inversion layer. When this layer is formed, the air near the surface of the earth stagnates and the diffusive power of the atmosphere weakens, so that soot and toxic gas in the air drift low, and pollution may become severe and prolonged.

With the tightening of regulations on automobile exhaust gas and the reduction of air pollutant emissions, substances emitted from sources other than exhaust pipes (for example, fuel evaporation gas, brake and tyre dust, etc.) are also attracting attention. In addition, with the improvement of chemical analysis technology, it is possible to measure trace components that could not be quantified until recently.

In 2015, the carbon dioxide (CO2) reduction target for 2030 was announced. . The transportation sector emits about 20 per cent of carbon dioxide in Japan as a whole, of which the automobile sector accounts for about 90 per cent, and it is necessary to implement reduction measures. Carbon dioxide reduction measures in the automobile sector include comprehensive measures such as improving fuel efficiency and popularising next-generation vehicles, as well as improving traffic congestion and making effective use of private cars.

What are the effects on health through breathing in Sapporo’s polluted air?

Carbon monoxide (CO) mainly comes from fossil fuels that are not completely burned. Most of the carbon monoxide in the air in Sapporo comes from the exhaust emissions from vehicles on the city roads. Carbon monoxide will reduce the oxygen-carrying capacity of red blood cells, and its impact on health depends on the length of time the body is exposed to it and how much is inhaled. The average person feels headache, dizziness and fatigue when inhaling low levels of carbon monoxide. When inhaling high concentrations though it can cause blurred vision, loss of coordination, and even death.

Of course, not everybody is affected by polluted air in the same way. A strong, healthy person is going to be able to cope with polluted air far better than someone who is already suffering from respiratory problems. Pregnant women, children under the age of 14 years and senior citizens must take extra care when venturing outside when the air is badly polluted.

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