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Longyan City Stations Ozone (O₃) Level

Longyan, Fujian, China

Ozone (O₃)

21ppb

Good

Last Updated: 2026-08-19 11:01 (Local Time)

Map

Longyan City Stations

Good

050

Moderate

100

Poor

168

Unhealthy

208

Severe

748

Hazardous

1250+

What is the Current O₃ Level?
Longyan City Stations

The current O₃ level at Longyan City Stations is 21 ppb making it healthy and safe for everyone in the area.

2.4xBelow

The current O₃ level in Longyan City Stations is 2.4x Below the recommended WHO guideline of 50.96 ppb.

AQI Graph

Historic Air Quality Graph of Ozone (O₃)
Longyan City Stations

24 Hours

O₃

Longyan City Stations

O₃ (ppb)

18-08-2026Time19-08-2026

Time	Longyan City Stations
11:01am	19
11:31am	20
12:01pm	22
12:31pm	22
1:01pm	27
1:31pm	26
2:01pm	26
2:31pm	29
3:01pm	23
3:31pm	24
4:01pm	25
4:31pm	23
5:01pm	23
5:31pm	23
6:01pm	23
6:31pm	27
7:01pm	21
7:31pm	23
8:01pm	19
8:31pm	19
9:01pm	19
9:31pm	18
10:01pm	9
10:31pm	10
11:01pm	8
11:31pm	8
12:01am	8
12:31am	9
1:01am	12
1:31am	11
2:01am	11
2:31am	13
3:01am	11
3:31am	14
4:01am	15
4:31am	13
5:01am	15
5:31am	13
6:01am	15
6:31am	13
7:01am	15
7:31am	15
8:01am	14
8:31am	14
9:01am	20
9:31am	20
10:01am	21
10:31am	23
11:01am	21

Min. O₃11:01pm

Max. O₃2:31pm

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 Longyan City Stations

Frequently Asked Questions About Air Quality

1. What is the current O₃ level in Longyan City Stations?

The current real-time O₃ level in Longyan City Stations is 21ppb (Good). This was last updated 2026-08-19 11:01 (Local Time).

2. When was the best O₃ level in Longyan City Stations in the last 24 hours?

The best O₃ level was 8 ppb (Good) at 11:01 PM, Aug 18, 2026 (Local Time) during the last 24 hours.

3. When was the worst O₃ level in Longyan City Stations in the last 24 hours?

The worst O₃ level was 29 ppb (Good) at 2:31 PM, Aug 18, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of O₃ levels in Longyan City Stations during last 24 hours?

The O₃ levels in Longyan City Stations have been fluctuating throughout the last 24 hours. The levels have increased by highest 29 ppb at 2:31 PM, Aug 18, 2026 (Local Time), lowest 8 ppb at 11:01 PM, Aug 18, 2026 (Local Time).

5. What actions are recommended as per the current O₃ level in Longyan City Stations?

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