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Patkata Colony Nitrogen Dioxide (NO₂) Level

Siliguri, West Bengal, India

Nitrogen Dioxide (NO₂)

190ppb

Unhealthy

Last Updated: 2026-08-18 02:11:01 (Local Time)

Map

Patkata Colony

Good

040

Moderate

Poor

180

Unhealthy

190

Severe

400

Hazardous

500+

What is the Current NO₂ Level?
Patkata Colony

The current NO₂ level at Patkata Colony is 190 ppb so everyone should stay cautious in the area.

14.2xAbove

The current NO₂ level in Patkata Colony is 14.2x Above the recommended WHO guideline of 13.29 ppb.

AQI Graph

Historic Air Quality Graph of Nitrogen Dioxide (NO₂)
Patkata Colony

24 Hours

NO₂

Patkata Colony

NO₂ (ppb)

17-08-2026Time18-08-2026

Time	Patkata Colony
2:31am	114
3:01am	103
3:31am	116
4:01am	113
4:31am	118
5:01am	109
5:31am	112
6:01am	112
6:31am	117
7:01am	121
7:31am	110
8:01am	113
8:31am	116
9:01am	112
9:31am	189
10:01am	182
10:31am	186
11:01am	187
11:31am	200
12:01pm	179
12:31pm	182
1:01pm	189
1:31pm	183
2:01pm	181
2:31pm	192
3:01pm	185
3:31pm	180
4:01pm	193
4:31pm	178
5:01pm	189
5:31pm	178
6:01pm	188
6:31pm	172
7:01pm	169
7:31pm	185
8:01pm	200
8:31pm	189
9:01pm	177
9:31pm	179
10:01pm	191
10:31pm	169
11:01pm	181
11:31pm	187
12:01am	181
12:31am	169
1:01am	188
1:31am	184
2:01am	182

103

Min. NO₂3:01am

200

Max. NO₂11:31am

Want air quality data?

Do you know NO2 can create impaired atmospheric visibility can increase atmospheric heat? It happens as its concentrations absorb the visible radiation in the atmosphere.

Uncovering the Sources of Nitrogen Dioxide (NO₂): Where Does It Come From?

Explosives and welding

Release during high-temperature processes.

Lighting

Emissions from certain types of lighting.

Power-generating plants

Emissions from fossil fuels burning for electricity.

Road traffic

Overall contributions from vehicles on the road.

Motor vehicles

Exhaust gases from cars and trucks.

Short-Term NO₂ Exposure Impacts

Coughing

Regular cough due to airways irritations.

Wheezing

More whistling sound while breathing,

Difficulty in breathing

Shortness of breath and reduced lung function.

Reduce smelling ability

Decreased sense of smell due to irritation.

Why you should care about Nitrogen Dioxide (NO₂)?

Know More About NO₂ Sensor

Air Quality FAQs
at Patkata Colony

Frequently Asked Questions About Air Quality

1. What is the current NO₂ level in Patkata Colony?

The current real-time NO₂ level in Patkata Colony is 190ppb (Unhealthy). This was last updated 2026-08-18 02:11:01 (Local Time).

2. When was the best NO₂ level in Patkata Colony in the last 24 hours?

The best NO₂ level was 103 ppb (Poor) at 3:01 AM (Local Time) during the last 24 hours.

3. When was the worst NO₂ level in Patkata Colony in the last 24 hours?

The worst NO₂ level was 200 ppb (Severe) at 11:31 AM (Local Time) during the last 24 hours.

4. What is the current trend of NO₂ levels in Patkata Colony during last 24 hours?

The NO₂ levels in Patkata Colony have been fluctuating throughout the last 24 hours. The levels have increased by highest 200 ppb at 11:31 AM (Local Time), lowest 103 ppb at 3:01 AM (Local Time).

5. What actions are recommended as per the current NO₂ level in Patkata Colony?

Current NO₂ levels are unhealthy for everyone. It's advised to limit outdoor activities and consider using air purifiers indoors.