Live

Daowai Chengde Square Ozone (O₃) Level

Harbin, Heilongjiang, China

Ozone (O₃)

6ppb

Good

Last Updated: 2026-08-14 01:51:01 (Local Time)

Map

Daowai Chengde Square

Good

050

Moderate

100

Poor

168

Unhealthy

208

Severe

748

Hazardous

1250+

What is the Current O₃ Level?
Daowai Chengde Square

The current O₃ level at Daowai Chengde Square is 6 ppb making it healthy and safe for everyone in the area.

8.4xBelow

The current O₃ level in Daowai Chengde Square is 8.4x Below the recommended WHO guideline of 50.96 ppb.

AQI Graph

Historic Air Quality Graph of Ozone (O₃)
Daowai Chengde Square

24 Hours

O₃

Daowai Chengde Square

O₃ (ppb)

13-08-2026Time14-08-2026

Time	Daowai Chengde Square
2:01am	20
2:31am	23
3:01am	25
3:31am	23
4:01am	23
4:31am	25
5:01am	20
5:31am	20
6:01am	25
6:31am	21
7:01am	30
7:31am	27
8:01am	25
8:31am	27
9:01am	31
9:31am	32
10:01am	30
10:31am	34
11:01am	27
11:31am	28
12:01pm	28
12:31pm	21
1:01pm	23
1:31pm	25
2:01pm	23
2:31pm	24
3:01pm	24
3:31pm	22
4:01pm	22
4:31pm	22
5:01pm	25
5:31pm	25
6:01pm	25
6:31pm	24
7:01pm	20
7:31pm	19
8:01pm	17
8:31pm	18
9:01pm	14
9:31pm	13
10:01pm	9
10:31pm	9
11:01pm	7
11:31pm	7
12:01am	5
12:31am	5
1:01am	5
1:31am	6

Min. O₃12:01am

Max. O₃10:31am

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 Daowai Chengde Square

Frequently Asked Questions About Air Quality

1. What is the current O₃ level in Daowai Chengde Square?

The current real-time O₃ level in Daowai Chengde Square is 6ppb (Good). This was last updated 2026-08-14 01:51:01 (Local Time).

2. When was the best O₃ level in Daowai Chengde Square in the last 24 hours?

The best O₃ level was 5 ppb (Good) at 12:01 AM, Aug 14, 2026 (Local Time) during the last 24 hours.

3. When was the worst O₃ level in Daowai Chengde Square in the last 24 hours?

The worst O₃ level was 34 ppb (Good) at 10:31 AM (Local Time) during the last 24 hours.

4. What is the current trend of O₃ levels in Daowai Chengde Square during last 24 hours?

The O₃ levels in Daowai Chengde Square have been fluctuating throughout the last 24 hours. The levels have increased by highest 34 ppb at 10:31 AM (Local Time), lowest 5 ppb at 12:01 AM, Aug 14, 2026 (Local Time).

5. What actions are recommended as per the current O₃ level in Daowai Chengde Square?

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