Live

Ward 42 Ozone (O₃) Level

Darjeeling, West Bengal, India

Ozone (O₃)

33ppb

Good

Last Updated: 2026-08-10 00:21:01 (Local Time)

Map

Ward 42

Good

050

Moderate

100

Poor

168

Unhealthy

208

Severe

748

Hazardous

1250+

What is the Current O₃ Level?
Ward 42

The current O₃ level at Ward 42 is 33 ppb making it healthy and safe for everyone in the area.

1.5xBelow

The current O₃ level in Ward 42 is 1.5x Below the recommended WHO guideline of 50.96 ppb.

AQI Graph

Historic Air Quality Graph of Ozone (O₃)
Ward 42

24 Hours

O₃

Ward 42

O₃ (ppb)

09-08-2026Time10-08-2026

Time	Ward 42
12:31am	34
1:01am	31
1:31am	35
2:01am	34
2:31am	32
3:01am	34
3:31am	34
4:01am	36
4:31am	37
5:01am	33
5:31am	37
6:01am	33
6:31am	34
7:01am	34
7:31am	31
8:01am	34
8:31am	32
9:01am	36
9:31am	29
10:01am	28
10:31am	31
11:01am	30
11:31am	31
12:01pm	34
12:31pm	36
1:01pm	36
1:31pm	34
2:01pm	34
2:31pm	31
3:01pm	34
3:31pm	31
4:01pm	35
4:31pm	35
5:01pm	32
5:31pm	34
6:01pm	34
6:31pm	34
7:01pm	32
7:31pm	35
8:01pm	32
8:31pm	34
9:01pm	34
9:31pm	32
10:01pm	31
10:31pm	36
11:01pm	32
11:31pm	35
12:01am	36
12:31am	34

Min. O₃10:01am

Max. O₃4:31am

Want air quality data?

Do you know that Ozone's total mass is 3 billion metric tons in the atmosphere? It looks like a lot but has only 0.00006% of the atmosphere. Besides, Ozone's peak concentration is 32 kilometres above the Earth's surface.

Uncovering the Sources of Ozone (O₃): Where Does It Come From?

Refineries

Industrial processes emit substances.

Power plants

Emissions from burning fossil fuels.

Paints evaporations

Vocs from paints react with sunlight.

Transportation

Diesel operated vehicles reacts and form ozone.

Short-Term O₃ Exposure Impacts

Chest pain

Discomfort or pain in the chest due to respiratory stress.

Breathing shortness

Difficulty in breathing or feeling of breathlessness.

Respiratory irritation

Inflammation and irritation of the respiratory tract.

Wheezing and coughing

Whistling sound and persistent cough.

Trigger asthma attacks

Aggravation of asthma symptoms.

Why you should care about Ozone (O₃)?

Know More About O₃ Sensor

Air Quality FAQs
at Ward 42

Frequently Asked Questions About Air Quality

1. What is the current O₃ level in Ward 42?

The current real-time O₃ level in Ward 42 is 33ppb (Good). This was last updated 2026-08-10 00:21:01 (Local Time).

2. When was the best O₃ level in Ward 42 in the last 24 hours?

The best O₃ level was 28 ppb (Good) at 10:01 AM (Local Time) during the last 24 hours.

3. When was the worst O₃ level in Ward 42 in the last 24 hours?

The worst O₃ level was 37 ppb (Good) at 4:31 AM (Local Time) during the last 24 hours.

4. What is the current trend of O₃ levels in Ward 42 during last 24 hours?

The O₃ levels in Ward 42 have been fluctuating throughout the last 24 hours. The levels have increased by highest 37 ppb at 4:31 AM (Local Time), lowest 28 ppb at 10:01 AM (Local Time).

5. What actions are recommended as per the current O₃ level in Ward 42?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.