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  2. Japan
  3. Niigata Prefecture
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  5. Saiwaicho

Saiwaicho

Nagaoka, Niigata Prefecture

2026-05-05 18:00
AQI (US)
Moderate
Pollutants
PM2.5
μg/m³
10
O3
μg/m³
53.6
NO2
μg/m³
4.1
SO2
μg/m³
0
Weather
  • ℃
  • ℉
9℃
71%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • O3
  • NO2
  • SO2
Places included
長岡工業高校
AQI 24
Data Sources
http://soramame.taiki.go.jp/

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