Air quality in Sapporo

Air quality index (AQI) and PM2.5 air pollution in Sapporo

LAST UPDATE (local time)

26.2K people follow this city

  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
IQAir map with AQI colorful pins

Air Quality contributors Sources

Data provided by

*IQAir’s AQI data modeled using satellite data. Learn more

Sapporo does not have air monitor data

Be the first to measure and contribute air quality data to your community.

Become a contributor
Find out more about contributors and data sources

Weather

What is the current weather in Sapporo?

Weather icon
WeatherBroken clouds
Temperature41°C
Humidity52%
Wind19.6 mp/h
Pressure1009 mb

live aqi city ranking

Real-time Japan city ranking

Tooltip icon
#cityUS AQI
1 Okuda, Aichi

86

2 Yumeimachi, Fukuoka

74

3 Bijogi, Saitama

72

4 Natsushimacho, Kanagawa

70

5 Tsuiheiji, Chiba

70

6 Midorigaoka, Wakayama

68

7 Minato, Wakayama

68

8 Nakajuku, Gunma

68

9 Shimosaigo, Shizuoka

65

10 Tanaka, Kanagawa

65

(local time)

SEE WORLD AQI RANKING

live Sapporo aqi ranking

Real-time Sapporo air quality ranking

Tooltip icon

City AQI based on satellite data. No ground level station currently available in Sapporo.

Be the first to provide air quality data in Sapporo.

Become a contributor

Sapporo webcam

7:08, Apr 14

Is there air pollution in Sapporo?

Thumbnail of Sapporo webcam at 7:08, Apr 14

US AQI

13 *

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in Sapporo?

Air pollution levelAir quality indexMain pollutant
Good 13 US AQIPM2.5
PollutantsConcentration
PM2.5
3.1 µg/m³

Health Recommendations

How to protect from air pollution in Sapporo?

An open window iconOpen your windows to bring clean, fresh air indoors
A man cycling iconEnjoy outdoor activities

Forecast

Sapporo air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Today

Good 23 US AQI

Human face indicating AQI level
Weather icon46.4°33.8°
Wind rotating 309 degree

8.9 mp/h

Thursday, Apr 15

Good 33 US AQI

Human face indicating AQI level
Weather icon48.2°33.8°
Wind rotating 268 degree

13.4 mp/h

Friday, Apr 16

Good 28 US AQI

Human face indicating AQI level
Weather icon53.6°37.4°
Wind rotating 156 degree

13.4 mp/h

Saturday, Apr 17

Good 37 US AQI

Human face indicating AQI level
Weather icon48.2°44.6°
Wind rotating 153 degree

11.2 mp/h

Sunday, Apr 18

Moderate 53 US AQI

Human face indicating AQI level
Weather icon46.4°41°
Wind rotating 325 degree

8.9 mp/h

Monday, Apr 19

Good 16 US AQI

Human face indicating AQI level
Weather icon42.8°39.2°
Wind rotating 316 degree

15.7 mp/h

Tuesday, Apr 20

Good 7 US AQI

Human face indicating AQI level
Weather icon48.2°39.2°
Wind rotating 327 degree

11.2 mp/h

Interested in hourly forecast? Get the app

Historical

Historic air quality graph for Sapporo

How to best protect from air pollution?

Reduce your air pollution exposure in Sapporo

AIR QUALITY ANALYSIS AND STATISTICS FOR Sapporo

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.

Where is the cleanest air quality in Sapporo?

Connect With IQAir

Sign up for our newsletter