Worst air pollution Hashimoto, today and tomorrow
Today (16 July): Air quality in Hashimoto is very poor. AQI and O3 are very poor; NO2, SO2, and PM1 are fair; PM2.5, PM10, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 84.6/100).
Tomorrow (17 July 2026): Air quality in Hashimoto is very poor. PM2.5 increases to fair; SO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 100/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Hashimoto's air quality reflects the Wakayama Prefecture Kinokawa River valley position at the Kii Mountains base, with vehicle traffic on surrounding roads and the manufacturing, agricultural, and residential corridor contributing local sources. Consistent Pacific and Kinokawa valley breezes provide background ventilation, while the surrounding Kii Mountains create topographic variation and Hashimoto generally maintains moderate Wakayama Prefecture inland valley readings throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Very poor
84.6/100
PM2.5 (fine particles):
Good
19.6/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Fair
31.7/100
O3 (ozone):
Very poor
84.6/100
SO2 (sulfur dioxide):
Fair
26.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.3/100
PM1 (ultrafine particles):
Fair
24.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Fair
23.9/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Fair
34.2/100
O3 (ozone):
Very poor
100/100
SO2 (sulfur dioxide):
Medium
41.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.6/100
PM1 (ultrafine particles):
Fair
29.1/100
Frequently Asked Questions
Is air quality bad in Hashimoto right now?
On 16 July 2026, overall air quality in Hashimoto is very poor. AQI is the main air quality indicator at 84.6/100. Pollution peaks around 4:00 PM (O3: 84.6/100).
Will air quality be worse tomorrow in Hashimoto?
On 17 July 2026, air quality conditions in Hashimoto will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 1:00 PM (O3: 100/100).
When is air pollution at its worst in Hashimoto?
Hashimoto usually sees its poorest air quality when vehicle traffic, manufacturing activity, along with agricultural activity coincide with periods when still air allows pollutants to build up. Local weather patterns add further variation on top of these sources. Background emissions and local weather both play a role in day-to-day changes.
Are air quality levels in Hashimoto based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app