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Air Quality Index (AQI) in Bishan, China 🇨🇳

Air quality in Bishan is currently 121 on the US AQI scale, rated Unhealthy (Sensitive).

Smoky haze
26°C
Smoky haze
AQI INDEX
121
US EPA Standard

PM 2.5 Level
43.8
µg/m³

Air Quality
Unhealthy (Sensitive)
The current Air Quality Index (AQI) in Bishan is recorded at 121 as of 11:52 PM local time this Wednesday, August 26, 2026. This real-time AQI score is estimated from the current PM2.5 concentration. According to the US EPA health standard, air quality in Bishan currently falls into the Unhealthy (Sensitive) category. The atmosphere shows an elevated PM2.5 concentration of 43.8 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 China, you can also view the Air Quality Index for China covering other major urban centers and local monitoring stations.

Health Recommendations for Bishan 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.

Bishan Air Pollution: Detailed Pollutant Breakdown

🚬
Breathing Bishan's air today is roughly like smoking 2.0 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 Bishan is 43.8 µg/m³.
PM 2.5
43.8
µg/m³
PM 10
44.0
µg/m³
Nitrogen Dioxide (NO2)
97.0
µg/m³
Ozone (O3)
22.0
µg/m³
Carbon Monoxide (CO)
1175.0
µg/m³
Sulfur Dioxide (SO2)
23.5
µg/m³

Current Weather in Bishan

🌡️ 26°C (Feels like 29°)
🌬️ 4 km/h SSE
💧 74% Humidity
🧭 1003 hPa
👁️ 7.9 km Visibility
☀️ UV Index: 0.1
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:24 PM
🌡️ Dew Point: 22°C

Bishan's Main Air Pollutant Today

The main concern in Bishan right now is NO2 at 97.0 µg/m³, about 3.9x the WHO 24-hour guideline.

Air Quality Health Advice for Bishan

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 China

Browse Air Quality in China by cities in alphabetical order:

A B C D F G H J K L M N O P Q S T U W X Y Z

Air Quality in China ›

Frequently Asked Questions about Air Quality in Bishan

What is the air quality (AQI) in Bishan right now?

The current air quality index in Bishan is 121 — categorised as Unhealthy (Sensitive).

Is the air in Bishan safe to breathe today?

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

What is the PM2.5 level in Bishan right now?

The fine-particle (PM2.5) concentration in Bishan is currently 43.8 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 Bishan right now?

The coarse-particle (PM10) concentration in Bishan is currently 44.0 µg/m³.

What is the main pollutant in Bishan right now?

The dominant pollutant in Bishan right now is NO2 at 97.0 µg/m³.

Is it safe to exercise outdoors in Bishan today?

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

How to Read the Air Quality Index for Bishan

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 Bishan safe today?

Today's AQI is 121, which is categorized as Unhealthy (Sensitive). This means the air quality is unhealthy (sensitive) for the general population.