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Asia
Japan
Niigata Prefecture
Nagaoka
AQI (US)
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AQI (China)
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AQI (US)
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AQI (UK)
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Nagaoka
Niigata Prefecture, Japan
2026-05-02 23:00
AQI (US)
Moderate
Pollutants
PM2.5
μg/m³
10
O3
μg/m³
62.1
NO2
μg/m³
5.1
CO
μg/m³
250
SO2
μg/m³
0
Weather
℃
℃
℉
23℃
48%
9 kph
5 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
PM2.5
O3
NO2
CO
SO2
Places included
Jooka
AQI 52
Kesajiro
AQI 52
Kitazonomachi
AQI 52
Saiwaicho
AQI 52
Data Sources
http://soramame.taiki.go.jp/
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