Live

35th Avenue Ozone (O₃) Level

Greeley, Colorado, United States

Ozone (O₃)

20ppb

Good

Last Updated: 2026-08-17 08:21:02 (Local Time)

Map

35th Avenue

Good

050

Moderate

100

Poor

168

Unhealthy

208

Severe

748

Hazardous

1250+

What is the Current O₃ Level?
35th Avenue

The current O₃ level at 35th Avenue is 20 ppb making it healthy and safe for everyone in the area.

2.5xBelow

The current O₃ level in 35th Avenue is 2.5x Below the recommended WHO guideline of 50.96 ppb.

AQI Graph

Historic Air Quality Graph of Ozone (O₃)
35th Avenue

24 Hours

O₃

35th Avenue

O₃ (ppb)

16-08-2026Time17-08-2026

Time	35th Avenue
8:31am	33
9:01am	34
9:31am	37
10:01am	33
10:31am	39
11:01am	37
11:31am	36
12:01pm	46
12:31pm	47
1:01pm	46
1:31pm	49
2:01pm	48
2:31pm	56
3:01pm	53
3:31pm	54
4:01pm	61
4:31pm	59
5:01pm	56
5:31pm	60
6:01pm	59
6:31pm	58
7:01pm	53
7:31pm	53
8:01pm	55
8:31pm	49
9:01pm	47
9:31pm	48
10:01pm	45
10:31pm	44
11:01pm	39
11:31pm	41
12:01am	38
12:31am	38
1:01am	39
1:31am	33
2:01am	33
2:31am	32
3:01am	27
3:31am	26
4:01am	24
4:31am	22
5:01am	23
5:31am	20
6:01am	20
6:31am	21
7:01am	21
7:31am	21
8:01am	20

Min. O₃5:31am

Max. O₃4:01pm

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 35th Avenue

Frequently Asked Questions About Air Quality

1. What is the current O₃ level in 35th Avenue?

The current real-time O₃ level in 35th Avenue is 20ppb (Good). This was last updated 2026-08-17 08:21:02 (Local Time).

2. When was the best O₃ level in 35th Avenue in the last 24 hours?

The best O₃ level was 20 ppb (Good) at 5:31 AM (Local Time) during the last 24 hours.

3. When was the worst O₃ level in 35th Avenue in the last 24 hours?

The worst O₃ level was 61 ppb (Moderate) at 4:01 PM, Aug 16, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of O₃ levels in 35th Avenue during last 24 hours?

The O₃ levels in 35th Avenue have been fluctuating throughout the last 24 hours. The levels have increased by highest 61 ppb at 4:01 PM, Aug 16, 2026 (Local Time), lowest 20 ppb at 5:31 AM (Local Time).

5. What actions are recommended as per the current O₃ level in 35th Avenue?

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