SmogRank / South Africa / Mpumalanga

Air quality in Leslie

Mpumalanga, South Africa. PM2.5 from 1 reference monitor, updated hourly.

6AQHI+
Moderate risk

Latest hour (03:00 UTC), 3.6× the WHO 24-hour guideline. PM2.5 53.8 µg/m³.

Rank, worst first

24 hours–not enough data
7 days#105of 2,605, at 3 AQHI+ (26.7 µg/m³)
30 days#181of 2,626, at 4 AQHI+ (37.0 µg/m³)
This year–not enough data

The last 12 months, day by day

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data2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: no data2026-05-30: no data2026-05-31: no data2026-06-01: no data2026-06-02: no data2026-06-03: no data2026-06-04: no data2026-06-05: no data2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: no data2026-06-12: no data2026-06-13: no data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: no data2026-08-04: no data2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: no data2026-08-12: 14.4 µg/m³2026-08-13: 36.2 µg/m³2026-08-14: 43.0 µg/m³2026-08-15: 99.3 µg/m³2026-08-16: 41.9 µg/m³2026-08-17: 23.5 µg/m³2026-08-18: 47.1 µg/m³2026-08-19: 72.4 µg/m³2026-08-20: 79.0 µg/m³2026-08-21: 54.3 µg/m³2026-08-22: 50.4 µg/m³2026-08-23: 29.9 µg/m³2026-08-24: 31.6 µg/m³2026-08-25: 35.2 µg/m³2026-08-26: 44.9 µg/m³2026-08-27: 57.9 µg/m³2026-08-28: 53.8 µg/m³2026-08-29: 32.4 µg/m³2026-08-30: 30.3 µg/m³2026-08-31: 40.2 µg/m³2026-09-01: 39.0 µg/m³2026-09-02: 46.6 µg/m³2026-09-03: 37.0 µg/m³2026-09-04: 56.6 µg/m³2026-09-05: 25.6 µg/m³2026-09-06: 18.3 µg/m³2026-09-07: 16.2 µg/m³2026-09-08: no data2026-09-09: 92.0 µg/m³2026-09-10: 42.8 µg/m³2026-09-11: 49.4 µg/m³2026-09-12: 60.8 µg/m³2026-09-13: 39.5 µg/m³2026-09-14: 32.5 µg/m³2026-09-15: 28.8 µg/m³2026-09-16: 50.6 µg/m³2026-09-17: no data2026-09-18: no data2026-09-19: 20.3 µg/m³2026-09-20: 36.5 µg/m³2026-09-21: 34.2 µg/m³2026-09-22: 42.3 µg/m³2026-09-23: 50.3 µg/m³2026-09-24: 32.1 µg/m³2026-09-25: 52.9 µg/m³2026-09-26: 32.8 µg/m³2026-09-27: 32.9 µg/m³2026-09-28: 25.4 µg/m³2026-09-29: 11.4 µg/m³2026-09-30: 12.9 µg/m³2026-10-01: 18.3 µg/m³
45 of 48 measured days were over the WHO 24-hour guideline (15 µg/m³). One row per month, one square per local day.
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Last 4 days, hour by hour

15542026-10-02 00:00 UTC: 12.5 µg/m³2026-10-02 01:00 UTC: 14.4 µg/m³2026-10-02 02:00 UTC: 20.7 µg/m³2026-10-02 03:00 UTC: 53.8 µg/m³Sep 29Sep 30Oct 1
Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Where it stood each day

Top 10Top 100#1#10#100#1,000#2,835Sep#444
Its rank on each day's world board, #1 being the most polluted city that day. The scale is logarithmic: each step down is ten times as many cities. See it among every city.

2026 against 2025, month by month

15JanFebMarAprMayJunJulAug 2026: 45.9 µg/m³AugSep 2026: 37.8 µg/m³SepOctNovDec
Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
LebohangPermission requested (South Africa DFFE, SAAQIS, 2026-10-01)South AfricaReference

The city's value is the median of its reference monitors each hour, when at least a third of them report (three are always enough); low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Use this page

SmogRank, PM2.5 daily means, Leslie, South Africa, 12 Aug 2026 – 1 Oct 2026, smogrank.com/za/leslie (accessed 2 Oct 2026).

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Other cities in South Africa

30-day averages, AQHI+. All of South Africa.

Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.