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Johnston Avenue Carbon Monoxide (CO) Level

Quesnel, British Columbia, Canada

Carbon Monoxide (CO)

303ppb

Good

Last Updated: 2026-08-11 22:51:01 (Local Time)

Map

Johnston Avenue

Good

08330

Moderate

16670

Poor

25000

Unhealthy

33330

Severe

41670

Hazardous

50000+

What is the Current CO Level?
Johnston Avenue

The current CO level at Johnston Avenue is 303 ppb making it healthy and safe for everyone in the area.

11.5xBelow

The current CO level in Johnston Avenue is 11.5x Below the recommended WHO guideline of 3490 ppb.

AQI Graph

Historic Air Quality Graph of Carbon Monoxide (CO)
Johnston Avenue

24 Hours

Johnston Avenue

CO (ppb)

10-08-2026Time11-08-2026

Time	Johnston Avenue
11:01pm	269
11:31pm	278
12:01am	295
12:31am	298
1:01am	289
1:31am	199
2:01am	186
2:31am	174
3:01am	209
3:31am	196
4:01am	172
4:31am	191
5:01am	191
5:31am	202
6:01am	193
6:31am	197
7:01am	202
7:31am	197
8:01am	172
8:31am	185
9:01am	279
9:31am	276
10:01am	282
10:31am	281
11:01am	189
11:31am	285
12:01pm	180
12:31pm	186
1:01pm	180
1:31pm	202
2:01pm	188
2:31pm	186
3:01pm	177
3:31pm	186
4:01pm	258
4:31pm	278
5:01pm	295
5:31pm	293
6:01pm	310
6:31pm	292
7:01pm	262
7:31pm	268
8:01pm	299
8:31pm	262
9:01pm	278
9:31pm	270
10:01pm	292
10:31pm	266

172

Min. CO4:01am

310

Max. CO6:01pm

Want air quality data?

Do you know CO emissions in the atmosphere can affect the greenhouse gas level? It is because CO emission causes global and climate changes in the atmosphere by increasing or changing the sea and land temperatures. It makes changes in ecosystems and storm activity and affects other weather events..

Uncovering the Sources of Carbon Monoxide (CO): Where Does It Come From?

Biomass burning

Burning wood, crop residues, and organic materials.

Power plants

Emissions from burning fossil fuels in power plants.

Fireplaces

Emissions from burning wood or coal in fireplaces.

Road traffic

Overall contributions from vehicles exhaust.

Vehicles engines

Exhaust emissions from cars and trucks.

Short-Term CO Exposure Impacts

Fatigue

Feeling tiredness or lack of energy.

Chest pain

Discomfort or pain in the chest area.

Confusion

Frequent difficulty in thinking clearly.

Flu-like symptoms

Symptoms like headache and nausea.

Weakness

Frequent weakness or lack of strength.

Why you should care about Carbon Monoxide (CO)?

Know More About CO Sensor

Air Quality FAQs
at Johnston Avenue

Frequently Asked Questions About Air Quality

1. What is the current CO level in Johnston Avenue?

The current real-time CO level in Johnston Avenue is 303ppb (Good). This was last updated 2026-08-11 22:51:01 (Local Time).

2. When was the best CO level in Johnston Avenue in the last 24 hours?

The best CO level was 172 ppb (Good) at 4:01 AM, Aug 11, 2026 (Local Time) during the last 24 hours.

3. When was the worst CO level in Johnston Avenue in the last 24 hours?

The worst CO level was 310 ppb (Good) at 6:01 PM, Aug 11, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of CO levels in Johnston Avenue during last 24 hours?

The CO levels in Johnston Avenue have been fluctuating throughout the last 24 hours. The levels have increased by highest 310 ppb at 6:01 PM, Aug 11, 2026 (Local Time), lowest 172 ppb at 4:01 AM, Aug 11, 2026 (Local Time).

5. What actions are recommended as per the current CO level in Johnston Avenue?

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