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🇲🇬 Indice de qualité de l'air (AQI) à Tôlanaro, Madagascar

Patchy rain nearby
23°C
Patchy rain nearby
INDICE AQI
19
Norme US EPA

Niveau PM 2.5
3.35
µg/m³

Indice US EPA
1
Bon
The current Air Quality Index (AQI) in Tôlanaro is recorded at 19 as of 11 o'clock at night local time this mardi, 26 mai 2026. This real-time AQI score is based on the highest-risk pollutant measured by local monitoring stations. According to the US EPA health standard, air quality in Tôlanaro currently falls into the Good category. With a fine particulate matter (PM2.5) concentration of 3.4 µg/m³, the air pollution levels are considered minimal. This AQI rating indicates that the air is fresh and healthy for the general public, including children and those with respiratory sensitivities. For the AQI across entire Madagascar, you can also view the Indice de qualité de l'air (AQI) à Madagascar covering other major urban centers and local monitoring stations.

Recommandations sanitaires pour les résidents de Tôlanaro

Air quality is considered satisfactory, and air pollution poses little or no risk. It is a great day for outdoor activities in Tôlanaro.

Pollution de l'air à Tôlanaro : Analyse détaillée des polluants

PM 2.5
3.4
µg/m³
PM 10
5.0
µg/m³
Nitrogen Dioxide (NO2)
1.4
µg/m³
Ozone (O3)
64.0
µg/m³
Carbon Monoxide (CO)
84.8
µg/m³
Sulfur Dioxide (SO2)
1.2
µg/m³

Météo actuelle à Tôlanaro

🌡️ 23°C (Ressenti 25°)
🌬️ 12 km/h ENE
💧 69% Humidité
🧭 1020 hPa
👁️ 10.0 km Visibilité
☀️ Indice UV : 0.0
🌅 Lever du soleil: 06:26 AM
🌇 Coucher du soleil: 05:11 PM
🌡️ Point de rosée : 19°C

Frequently Asked Questions about Air Quality in Tôlanaro

Quelle est la qualité de l'air (AQI) à Tôlanaro en ce moment ?

L'indice actuel de qualité de l'air à Tôlanaro est 19— catégorisé comme Good.

L'air de Tôlanaro est-il sûr à respirer aujourd'hui ?

Aujourd'hui, la qualité de l'air à Tôlanaro est classée Good sur l'échelle de l'EPA américaine.

Quel est le niveau de PM2.5 à Tôlanaro en ce moment ?

La concentration de particules fines (PM2,5) dans l’air de Tôlanaro est actuellement de 3.4 µg/m³. Les PM2,5 sont le polluant le plus nocif pour la santé — la recommandation de l’OMS sur 24 heures est de 15 µg/m³.

Quel est le niveau de PM10 à Tôlanaro en ce moment ?

La concentration en particules grossières (PM10) dans Tôlanaro est actuellement de 5.0 µg/m³.

Quel est le principal polluant à Tôlanaro en ce moment ?

Le principal polluant à Tôlanaro en ce moment est Carbon Monoxide (CO) à 84.85 µg/m³.

Est-il sécuritaire de faire de l'exercice à l'extérieur à Tôlanaro aujourd'hui ?

Avec une qualité de l'air actuellement classée Good, l'exercice en extérieur à Tôlanaro est généralement considéré comme sûr pour la plupart des gens.

Comment lire l'indice de qualité de l'air pour Tôlanaro

Bon (0-50)

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

Modéré (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Unhealthy (Sensitive) (101-150)

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

Malsain (151-200)

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

Très malsain (201-300)

Significant health impact for entire population. Emergency conditions.

Dangereux (301+)

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

Bon (0-12)

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

Modéré (12-35)

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

Sensible (35-55)

Individuals with heart or lung disease should limit activity.

Malsain (55-150)

Particulate levels high enough to cause respiratory irritation.

Très malsain (150-250)

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

Dangereux (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Bon (0-54)

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

Modéré (55-154)

Coarse particles may trigger coughing in sensitive groups.

Sensible (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Malsain (255-354)

Widespread respiratory impacts likely for the population.

Très malsain (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Dangereux (425+)

Extremely high concentrations. Stay inside with filtration.

Bon (0-54)

Surface ozone levels are within a safe, natural range.

Modéré (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Sensible (71-85)

Rising ozone can trigger airway inflammation in active children.

Malsain (86-105)

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

Très malsain (106-200)

Serious lung function reduction likely across the public.

Dangereux (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Bon (0-53)

Nitrogen levels are optimal. Safe for everyone.

Modéré (54-100)

Typical background levels for high-density urban areas.

Sensible (101-360)

Increased risk of respiratory infections for vulnerable groups.

Malsain (361-649)

Significant airway inflammation likely near traffic zones.

Très malsain (650-1249)

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

Dangereux (1250+)

Toxic concentrations. Immediate health precautions required.

Bon (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Modéré (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Sensible (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Malsain (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Très malsain (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Dangereux (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Bon (0-35)

Optimal air quality with no sulfur detection.

Modéré (36-75)

Acceptable air; minor odors possible near industry.

Sensible (76-185)

Bronchoconstriction possible for active asthmatics.

Malsain (186-304)

Respiratory distress likely for the wider population.

Très malsain (305-604)

Significant wheezing and shortness of breath likely.

Dangereux (605+)

Extreme respiratory danger. Significant life risk.

Ressources santé et scientifiques

→ Comment lire l'indice de qualité de l'air de l'US EPA avant de sortir → Comprendre les niveaux de l'indice de qualité de l'air et leur signification → Quand le brouillard se forme et son impact sur la qualité de l'air

Comment cet AQI est-il calculé ?

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).

Formule : Ip = [(Ihi - Ilow) / (Chi - Clow)] * (Cp - Clow) + Ilow

Note: While several pollutants (O3, NO2, SO2) are monitored, PM2.5 is used as the primary "driver" for the main index value as it typically represents the highest health risk.

Questions Fréquemment Posées

Quelle est la principale cause de la pollution de l'air à Tôlanaro ?

Pollution in Tôlanaro is primarily driven by 11.9 km/h ENE winds, local traffic emissions, and industrial activity, which influence the current PM2.5 concentration of 3.35 µg/m³.

L'IQA à Tôlanaro est-il sûr aujourd'hui ?

Today's AQI is 19, which is categorized as Bon. This means the air quality is bon for the general population.