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Air Quality Index (AQI) in Ampliación San Mateo, Mexico 🇲🇽

Air quality in Ampliación San Mateo is currently 110 on the US AQI scale, rated Unhealthy (Sensitive).

Smoky haze
13°C
Smoky haze
AQI INDEX
110
US EPA Standard

PM 2.5 Level
39.2
µg/m³

Air Quality
Unhealthy (Sensitive)
The current Air Quality Index (AQI) in Ampliación San Mateo is recorded at 110 as of 11:06 AM local time this Friday, September 4, 2026. This real-time AQI score is estimated from the current PM2.5 concentration. According to the US EPA health standard, air quality in Ampliación San Mateo currently falls into the Unhealthy (Sensitive) category. The atmosphere shows an elevated PM2.5 concentration of 39.2 µg/m³. At this Air Quality Index range, members of sensitive groups may experience health effects. Track the local weather and limit time outdoors until levels improve. For the AQI across entire Mexico, you can also view the Air Quality Index for Mexico covering other major urban centers and local monitoring stations.

Health Recommendations for Ampliación San Mateo Residents

😷

Members of sensitive groups may experience health effects. Sensitive groups should reduce prolonged or heavy outdoor exertion; the general public is less likely to be affected.

Ampliación San Mateo Air Pollution: Detailed Pollutant Breakdown

🚬
Breathing Ampliación San Mateo's air today is roughly like smoking 1.8 cigarettes.
Based on the Berkeley Earth estimate that ~22 µg/m³ of PM2.5 over a day is about one cigarette. Today's PM2.5 in Ampliación San Mateo is 39.2 µg/m³.
PM 2.5
39.2
µg/m³
PM 10
39.5
µg/m³
Nitrogen Dioxide (NO2)
76.1
µg/m³
Ozone (O3)
13.0
µg/m³
Carbon Monoxide (CO)
552.0
µg/m³
Sulfur Dioxide (SO2)
31.6
µg/m³

Current Weather in Ampliación San Mateo

🌡️ 13°C (Feels like 12°)
🌬️ 4 km/h SW
💧 72% Humidity
🧭 1018 hPa
👁️ 9.8 km Visibility
☀️ UV Index: 0.0
🌅 Sunrise: 06:21 AM
🌇 Sunset: 06:49 PM
🌡️ Dew Point: 8°C

Ampliación San Mateo's Main Air Pollutant Today

The main concern in Ampliación San Mateo right now is NO2 at 76.1 µg/m³, about 3.0x the WHO 24-hour guideline.

Air Quality Health Advice for Ampliación San Mateo

General publicMost people can stay active outdoors; watch for symptoms if you are sensitive.
Sensitive groupsSensitive groups should reduce prolonged or heavy exertion outdoors.

Air Quality in Other Cities in Mexico

Browse Air Quality in Mexico by cities in alphabetical order:

A B C D E G H I J L M N O P R S T U V X Z

Air Quality in Mexico ›

Frequently Asked Questions about Air Quality in Ampliación San Mateo

What is the air quality (AQI) in Ampliación San Mateo right now?

The current air quality index in Ampliación San Mateo is 110 — categorised as Unhealthy (Sensitive).

Is the air in Ampliación San Mateo safe to breathe today?

Today's air quality in Ampliación San Mateo is rated Unhealthy (Sensitive) on the US EPA scale.

What is the PM2.5 level in Ampliación San Mateo right now?

The fine-particle (PM2.5) concentration in Ampliación San Mateo is currently 39.2 µg/m³. PM2.5 is the most health-relevant pollutant — the WHO 24-hour guideline is 15 µg/m³.

What is the PM10 level in Ampliación San Mateo right now?

The coarse-particle (PM10) concentration in Ampliación San Mateo is currently 39.5 µg/m³.

What is the main pollutant in Ampliación San Mateo right now?

The dominant pollutant in Ampliación San Mateo right now is NO2 at 76.1 µg/m³.

Is it safe to exercise outdoors in Ampliación San Mateo today?

Air quality in Ampliación San Mateo is Unhealthy (Sensitive) — sensitive groups should consider reducing prolonged outdoor exertion.

How to Read the Air Quality Index for Ampliación San Mateo

Good (0-50)

Air is fresh and healthy. Safe for all outdoor activities.

Moderate (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Unhealthy (Sensitive) (101-150)

Vulnerable groups (children, elderly) should limit outdoor exertion.

Unhealthy (151-200)

Everyone begins to experience health effects. Stay indoors where possible.

Very Unhealthy (201-300)

Significant health impact for entire population. Emergency conditions.

Hazardous (301+)

Serious health alert: everyone may experience serious life-threatening effects.

Good (0-12)

Fine particles are at minimal, safe levels. Air is optimal.

Moderate (12-35)

Acceptable air, but haze may be present in urban areas.

Sensitive (35-55)

Individuals with heart or lung disease should limit activity.

Unhealthy (55-150)

Particulate levels high enough to cause respiratory irritation.

Very Unhealthy (150-250)

Heavy haze. High risk to cardiovascular health for the public.

Hazardous (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Good (0-54)

Low levels of dust and coarse particles. Environment is safe.

Moderate (55-154)

Coarse particles may trigger coughing in sensitive groups.

Sensitive (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Unhealthy (255-354)

Widespread respiratory impacts likely for the population.

Very Unhealthy (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Hazardous (425+)

Extremely high concentrations. Stay inside with filtration.

Good (0-54)

Surface ozone levels are within a safe, natural range.

Moderate (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Sensitive (71-85)

Rising ozone can trigger airway inflammation in active children.

Unhealthy (86-105)

Avoid heavy outdoor work during the hottest part of the day.

Very Unhealthy (106-200)

Serious lung function reduction likely across the public.

Hazardous (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Good (0-53)

Nitrogen levels are optimal. Safe for everyone.

Moderate (54-100)

Typical background levels for high-density urban areas.

Sensitive (101-360)

Increased risk of respiratory infections for vulnerable groups.

Unhealthy (361-649)

Significant airway inflammation likely near traffic zones.

Very Unhealthy (650-1249)

Acute respiratory distress potential. High-risk groups stay indoors.

Hazardous (1250+)

Toxic concentrations. Immediate health precautions required.

Good (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Moderate (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Sensitive (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Unhealthy (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Very Unhealthy (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Hazardous (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Good (0-35)

Optimal air quality with no sulfur detection.

Moderate (36-75)

Acceptable air; minor odors possible near industry.

Sensitive (76-185)

Bronchoconstriction possible for active asthmatics.

Unhealthy (186-304)

Respiratory distress likely for the wider population.

Very Unhealthy (305-604)

Significant wheezing and shortness of breath likely.

Hazardous (605+)

Extreme respiratory danger. Significant life risk.

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

How is this AQI calculated?

The primary Air Quality Index (AQI) shown above is calculated using the US EPA Linear Interpolation formula based on PM2.5 concentration (Fine Particulate Matter).

Formula: Ip = [(Ihi - Ilow) / (Chi - Clow)] * (Cp - Clow) + Ilow
Current Conditions Explained

Is the AQI in Ampliación San Mateo safe today?

Today's AQI is 110, which is categorized as Unhealthy (Sensitive). This means the air quality is unhealthy (sensitive) for the general population.