Yokohama air quality map

Live air pollution map of Yokohama

8.7K 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
Unhealthy for sensitive groups
Very unhealthy

Full screen

rectangle shape clicked to open the map in fullscreen
plus icon clicked to zoom the map in
minus icon clicked to zoom the map out





Contributors category




Non-profit organization









Most polluted air quality stations

#stationUS AQI
1 Aoba City General Government Building


2 Kohoku City General Government Building


3 Aobadai


4 Honmokucho


5 Kanagawa City General Government Building


6 Hodogaya-ku Sakuragaoka High School


7 Minami Seya Elementary School


8 Namamugi Elementary School


9 Nishi-ku Hiranuma Elementary School


10 Shimosueyoshi Elementary School, Tsurumi Ward


Health Recommendations

A man cycling icon
Enjoy outdoor activities
An open window icon
Open your windows to bring clean, fresh air indoors

Become a contributor

Get an AirVisual Outdoor and contribute to collecting millions of data points for the Yokohama map to track local air pollution

Track air quality in Yokohama

Comprehensive summaries and real-time analyses of the air quality, pollution levels, and forecasts for Yokohama.

Understand air pollution and protect yourself


What are the pollution readings shown on the air quality map for Yokohama?

The current air quality map readings are subject to many changes over a single day in Yokohama as well as throughout the rest of the country necessitating the use of air quality maps due to their constantly updated information regarding the air cleanliness levels. This air quality map, or air pollution map as it may also be referred to, can be checked whenever possible. Every day of the week, as well as the different months and even years, may have noticeably different US AQI readings.

Long-term reviews of such readings on the pollution maps will show that there may be average levels that are more common, specifically during certain times of the day as well as during the year. These are always subject to sudden change due to events such as fires or other major polluting issues. The air quality map that can be seen above this article will tell users what the current US AQI readings are, and how they fluctuate for the day. To cite an example taken in September of 2022, readings taken from all over the city generally came in as being in the 'good' air quality rating bracket, as is common in cities all over Japan, even amongst the more densely populated ones such, with Tokyo being a good example. There were higher readings present as well, with many US AQI figures above 50 being present, which tend to stand out amongst the many 'good' air quality readings that came in at under 50. Any readings above 50 fall into the 'moderate' air quality rating bracket, and will show up as yellow discs on the map above as may be seen at any time, along with the good air quality readings all showing up as green. The colors will get increasingly darker as the pollution ranking increases, going up to orange, red, purple and maroon, with these last three groupings only being seen in severe situations whereby natural disasters such as fires or manmade, industrial ones take place.

Which people in Yokohama may benefit the most from using air quality maps?

Whilst all members of society in Bogota can benefit from being informed by air quality maps, there are more vulnerable groups, who can suffer much more grave consequences as a result of breathing pollutants in the air. These include the elderly, young children and babies, pregnant mothers, as well as those with a compromised immune system and with pre-existing illnesses. For such groups, the use of air quality maps will be of far greater benefit, due to the quality of their life potentially depending on how clean the air that they are exposed to is.

Will the use of air quality maps help prevent health issues in Yokohama?

When users are referring to the air quality maps that are in use throughout Yokohama, as well as other cities spread out throughout Japan, there may be distinct times in which the air quality maps, or air pollution maps as they are also referred to, can be of great aid in reducing potential health problems, as well as reducing illnesses that certain people may already have.

This form of harm reduction can have many different, far-reaching effects, as increasing levels of air pollution around the globe have shown time and time again to be extremely detrimental to the health of those who are exposed. This is particularly true for those whose exposure continues unabated for many years, along with the other bracket that needs to be taken into consideration, that of acute pollution exposure, which may occur during more serious events such as natural disasters (huge amounts of dust and other fine particles being blown into the air as a result of earthquakes, as well as smoke particles from fires, although they are not as common as in other countries that experience long periods of arid weather).

When the air quality map in Yokohama shows pollution readings, in the form of US AQI and its subsequent rating system, users and their families can take preventative measures to avoid the more highly polluted areas if possible, as well as undertake other measures such as wearing masks to prevent excess inhalation of mostly finely ground particulate matter, and other such PM2.5 or PM10 based pollutants (especially true in crowded or congested parts of the cities throughout Japan, that have the highest number of cars, trucks and other vehicles bottlenecked into one or several areas of the city, which becomes more apparent during rush hour times of the day or other times of the year which cause largescale movements of many people. To get into some of the health issues that may be avoided by using the air quality maps now available for the citizens of Yokohama, and others throughout Japan, the most salient ones are those that affect the lungs, respiratory tract, as well as heart. Many chemical compounds and other hazardous particles can cause long-term changes to the central nervous system, which is especially dangerous for young children and babies who are still going through the vital formative years of their life. Any disruption during this time may lead to longer-term or even lifelong issues, some of which will be mentioned. The lungs and the heart, or the pulmonary and cardiovascular systems, can be affected directly by breathing chemical compounds and PM10 or PM2.5. Scarring of the lung tissue can occur, which can lead to a lessened capacity for the lungs to expand, as well as a higher rate of respiratory tract infections to occur.

These can include ones such as dry coughs, and chronic obstructive pulmonary disease (COPD), with COPD being an umbrella term that refers to ailments such as asthma (one of the illnesses that can be particularly apparent amongst young children, with excessive exposure to dust, pollen, and other irritating particles causing this to potentially develop, which may stay with them for life. By referring to the air quality map above, small changes can be implemented that over the long term may cause such illnesses to be averted). Other COPD-related illnesses include bronchitis, pneumonia and emphysema. Elderly citizens can also be harshly affected by pulmonary ailments, with simple infections of the chest potentially turning into a life-threatening situation if not dealt with quickly enough, or if the elderly citizen's immune system is already under duress from other pre-existing conditions. These are a small number of health issues that can occur from pollution exposure, and thus utilizing the air quality map for Yokohama may help users make informed decisions about which areas have the highest levels of air contamination occurring, and adjust their daily routines, if possible, to avoid staying near or going through such zones. Briefly looking at issues that can affect the heart, they include an increased risk of heart attacks, arrhythmias, and angina, along with other potentially fatal problems such as strokes and even premature death, all of which can result from long-term, excessive pollution exposure, pertinent not only for Yokohama and throughout Japan, but for the whole world, and more so for people living in highly polluted countries.

What do the US AQI figures on the air quality map represent for Yokohama?

As the pollution readings are taken in the form of US AQI on the air quality maps for Yokohama, users can know what pollutants they may be breathing. US AQI itself is a number aggregated from the main pollutants found in the air throughout the world (due to them being released consistently by the usual polluting sources we see in all societies, with some variations of course being witnessed).

As such, when the US AQI levels are high in Yokohama, certain areas as shown on the air quality map will have higher concentrations of ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide as well as PM10 and PM2.5. All of these can have significant effects on the health of individuals, with certain pollutants being higher in particular areas (citing a common example, cars and other vehicles tend to release larger amounts of nitrogen dioxide, causing busy roads, motorways and areas that have rush hour traffic to have a higher concentration of this chemical pollutant in the air).

Your cart is empty

Connect With IQAir

Sign up for our newsletter