South Africa

Johannesburg

Name: Johannesburg
Address: South Africa

127

Unhealthy for Sensitive Groups

Air Quality Index

Updated Mar 20, 11:09 PM · Data from OpenAQ

Current Pollution Levels in Johannesburg

PM2.5

Sensitive

46.206

µg/m³

PM10

Moderate

80.468

µg/m³

O₃

N/A

—

ppm

Johannesburg Air Quality 24-Hour Trend

Air Quality Analysis for Johannesburg

Johannesburg, South Africa air quality this morning is rated Unhealthy for Sensitive Groups with an Air Quality Index (AQI) of 127. The primary pollutant PM2.5 is measured at 46.206 µg/m³. PM10 (coarse particles) is at 80.468 µg/m³.

The current PM2.5 level exceeds the WHO 24-hour guideline of 45 µg/m³. Prolonged exposure at this level poses health risks, particularly for vulnerable populations including children, elderly, and those with respiratory conditions.

PM2.5 levels are stable, staying close to the recent average of 46.2 µg/m³.

Health Recommendation

Sensitive groups in Johannesburg — including children, elderly, and those with asthma or heart disease — should limit prolonged outdoor activity. Consider wearing an N95 mask if spending extended time outdoors.

Outdoor Exercise

Reduce intensity

Window Ventilation

Keep windows closed

Recent Johannesburg Air Quality Measurements

Time	AQI	PM2.5	PM10
11:09 PM	127	46.206	80.468

Frequently Asked Questions

Is air quality in Johannesburg safe today?

Johannesburg air quality is unhealthy for sensitive groups today (AQI 127). Children, elderly, and people with respiratory conditions should limit prolonged outdoor exposure.

What AQI level is considered unhealthy?

According to EPA standards, AQI 0-50 is Good, 51-100 is Moderate, 101-150 is Unhealthy for Sensitive Groups, 151-200 is Unhealthy, 201-300 is Very Unhealthy, and above 300 is Hazardous. The WHO recommends annual PM2.5 levels below 15 µg/m³ for optimal health.

Should I wear a mask today in Johannesburg?

With Johannesburg's AQI at 127, wearing an N95 mask is recommended for outdoor activities, especially for sensitive groups. PM2.5 levels are at 46.206 µg/m³, which exceeds the EPA moderate threshold.