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San Juan Puerto Rico Carbon Monoxide (CO) Level

Catano, Puerto Rico, United States

Carbon Monoxide (CO)

172ppb

Good

Last Updated: 2026-07-16 06:41 (Local Time)

Map

San Juan Puerto Rico

Good

08330

Moderate

16670

Poor

25000

Unhealthy

33330

Severe

41670

Hazardous

50000+

What is the Current CO Level?
San Juan Puerto Rico

The current CO level at San Juan Puerto Rico is 172 ppb making it healthy and safe for everyone in the area.

20.2xBelow

The current CO level in San Juan Puerto Rico is 20.2x Below the recommended WHO guideline of 3490 ppb.

AQI Graph

Historic Air Quality Graph of Carbon Monoxide (CO)
San Juan Puerto Rico

24 Hours

San Juan Puerto Rico

CO (ppb)

15-07-2026Time16-07-2026

Time	San Juan Puerto Rico
7:01am	178
7:31am	200
8:01am	187
8:31am	199
9:01am	197
9:31am	177
10:01am	196
10:31am	201
11:01am	188
11:31am	184
12:01pm	299
12:31pm	188
1:01pm	201
1:31pm	200
2:01pm	185
2:31pm	173
3:01pm	196
3:31pm	203
4:01pm	203
4:31pm	190
5:01pm	188
5:31pm	205
6:01pm	199
6:31pm	189
7:01pm	190
7:31pm	190
8:01pm	187
8:31pm	313
9:01pm	282
9:31pm	292
10:01pm	277
10:31pm	272
11:01pm	296
11:31pm	275
12:01am	281
12:31am	280
1:01am	287
1:31am	278
2:01am	266
2:31am	311
3:01am	300
3:31am	209
4:01am	300
4:31am	181
5:01am	178
5:31am	187
6:01am	181
6:31am	179

173

Min. CO2:31pm

313

Max. CO8:31pm

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 San Juan Puerto Rico

Frequently Asked Questions About Air Quality

1. What is the current CO level in San Juan Puerto Rico?

The current real-time CO level in San Juan Puerto Rico is 172ppb (Good). This was last updated 2026-07-16 06:41 (Local Time).

2. When was the best CO level in San Juan Puerto Rico in the last 24 hours?

The best CO level was 173 ppb (Good) at 2:31 PM, Jul 15, 2026 (Local Time) during the last 24 hours.

3. When was the worst CO level in San Juan Puerto Rico in the last 24 hours?

The worst CO level was 313 ppb (Good) at 8:31 PM, Jul 15, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of CO levels in San Juan Puerto Rico during last 24 hours?

The CO levels in San Juan Puerto Rico have been fluctuating throughout the last 24 hours. The levels have increased by highest 313 ppb at 8:31 PM, Jul 15, 2026 (Local Time), lowest 173 ppb at 2:31 PM, Jul 15, 2026 (Local Time).

5. What actions are recommended as per the current CO level in San Juan Puerto Rico?

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