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Kālna (West Bengal) (IN)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Heavy rain showers
26°C
Heavy rain showers
Humidity
77.2%
Wind
5 m/s
Pressure
1006.9 hPa
Direction
142°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
20° / 27°
Precip.
24.1mm
Max wind
5.9 m/s

Hourly Forecast

20.03
Now
Weather
26°
1.1
5
20.03
10:00
Weather
25°
9.9
5
20.03
11:00
Weather
22°
0.9
5
20.03
12:00
Weather
23°
0.4
5
20.03
13:00
Weather
22°
6
20.03
14:00
Weather
22°
20.03
15:00
Weather
22°
20.03
16:00
Weather
22°
20.03
17:00
Weather
22°
20.03
18:00
Weather
21°
20.03
19:00
Weather
21°
20.03
20:00
Weather
21°
20.03
21:00
Weather
21°
20.03
22:00
Weather
21°
20.03
23:00
Weather
20°
21.03
00:00
Weather
20°
21.03
01:00
Weather
21°
21.03
02:00
Weather
22°
21.03
03:00
Weather
23°
21.03
04:00
Weather
25°
0.2
21.03
05:00
Weather
26°
0.2
21.03
06:00
Weather
26°
0.2
21.03
07:00
Weather
27°
4
21.03
08:00
Weather
25°
7.2

Temperature

27°C
20°C
09:00
26°C
10:00
25°C
11:00
22°C
12:00
23°C
13:00
22°C
14:00
22°C
15:00
22°C
16:00
22°C
17:00
22°C
18:00
21°C
19:00
21°C
20:00
21°C
21:00
21°C
22:00
21°C
23:00
20°C
00:00
20°C
01:00
21°C
02:00
22°C
03:00
23°C
04:00
25°C
05:00
26°C
06:00
26°C
07:00
27°C
08:00
25°C
09:00 20:00 08:00

Precipitation

9.9mm
0mm
09:00
1.1mm
10:00
9.9mm
11:00
0.9mm
12:00
0.4mm
04:00
0.2mm
05:00
0.2mm
06:00
0.2mm
07:00
4mm
08:00
7.2mm
09:00 20:00 08:00

Wind

5.9m/s
0m/s
09:00
5.3 m/s
10:00
5.4 m/s
11:00
5.2 m/s
12:00
5.4 m/s
13:00
5.9 m/s
14:00
4.8 m/s
15:00
5 m/s
16:00
4.2 m/s
17:00
3 m/s
18:00
4.1 m/s
19:00
1.9 m/s
20:00
3.1 m/s
21:00
3 m/s
22:00
2.4 m/s
23:00
1.3 m/s
00:00
0.8 m/s
01:00
1.1 m/s
02:00
1.1 m/s
03:00
1.9 m/s
04:00
1.6 m/s
05:00
2.2 m/s
06:00
2 m/s
07:00
1.9 m/s
08:00
4.8 m/s
09:00 20:00 08:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
77.3 km
161
53.7%

Measurement time: 2026-03-20 09:30

Calculated from PM2.5/PM10

PM2.5
77.3 km
75 µg/m3
89.3%

Measurement time: 2026-03-20 09:30

source: Aqicn

PM10
77.3 km
38 µg/m3
27.1%

Measurement time: 2026-03-20 09:30

source: Aqicn

O3
77.3 km
7.4 µg/m3
4.6%

Measurement time: 2026-03-20 09:30

source: Aqicn

NO2
77.3 km
7.9 µg/m3
4%

Measurement time: 2026-03-20 09:30

source: Aqicn

SO2
77.3 km
3 µg/m3
0.9%

Measurement time: 2026-03-20 09:30

source: Aqicn

CO
77.3 km
0.0038 mg/m3
0%

Measurement time: 2026-03-20 09:30

source: Aqicn

Info


Country: India
Latitude: 23.21944
Longitude: 88.36295


Solar Energy

Moderate
320 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Kālna

About Air Quality in Kālna

Air quality in Kālna is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Kālna

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Kālna?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Kālna

If you're planning outdoor activities in Kālna, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.