Network measurements, explored in detail

Filter raw sensor readings by place, pollutant, and date — with network trends and quality breakdowns for the selected window.

Readings: 16,177
Sensors with data: 51
Parameters: PM2.5
Date range: Aug 21, 2026 – Sep 18, 2026(about 29 days)

Trends

PM2.5 over time

Network aggregate · daily averages for your filter window

21 Aug – 18 Sept 2026

Average AQI

Peak AQI

PM2.5 24.4 µg/m³

Period change (AQI)

+14

First vs last day in window

Passed QC

100%

Review

Failed QC

Top locations

Wa Main Traffic1,347
Takoradi Market Circle1,346
Tamale Central High Street1,346
Ho Central674
Salaga Central674

Filter readings

Narrow the dataset

Adjust filters below — trends and the readings table update together.

Last 24 hours Last 7 days Last 30 days PM2.5 only

SensorRegionParameter

Start dateEnd date

Value range

Quality flag

Clear

Readings

Raw measurements (16,177)

Showing 1–20 of 16,177

Newest Oldest Highest

Amasaman

Sep 18, 2026 · 8:29 PM

PM2.5

27.3µg/m³

Amasaman • Greater Accra

Passed

West Hills Mall

Sep 18, 2026 · 7:04 PM

PM2.5

23.1µg/m³

West Hills Mall • Greater Accra

Passed

Makola

Sep 18, 2026 · 6:10 PM

PM2.5

28.9µg/m³

Makola • Greater Accra

Passed

Kwashieman Presby Church

Sep 18, 2026 · 5:18 PM

PM2.5

23.5µg/m³

Kwashieman Presby Church • Greater Accra

Passed

Lapaz Intersection

Sep 18, 2026 · 4:03 PM

PM2.5

24.6µg/m³

Lapaz Intersection • Greater Accra

Passed

Dzorwulu Fidelity Bank

Sep 18, 2026 · 3:00 PM

PM2.5

25.4µg/m³

Dzorwulu Fidelity Bank • Greater Accra

Passed

Osu Oxford Street

Sep 18, 2026 · 2:17 PM

PM2.5

23.7µg/m³

Osu Oxford Street • Greater Accra

Passed

Tetteh Quarshie Interchange

Sep 18, 2026 · 1:27 PM

PM2.5

22.9µg/m³

Tetteh Quarshie Interchange • Greater Accra

Passed

Okponglo Junction

Sep 18, 2026 · 12:21 PM

PM2.5

25.5µg/m³

Okponglo Junction • Greater Accra

Passed

Madina Zongo Junction

Sep 18, 2026 · 11:00 AM

PM2.5

25.8µg/m³

Madina Zongo Junction • Greater Accra

Passed

Ashaley Botwe School Junction

Sep 18, 2026 · 10:28 AM

PM2.5

23.6µg/m³

Ashaley Botwe School Junction • Greater Accra

Passed

Ashiaman Market Area

Sep 18, 2026 · 9:16 AM

PM2.5

26.6µg/m³

Ashiaman Market Area • Greater Accra

Passed

Nalerigu Market AQ

Sep 18, 2026 · 9:00 AM

PM2.5

21.9µg/m³

Nalerigu Town • North East

Passed

Wa Central Market

Sep 18, 2026 · 9:00 AM

PM2.5

24.9µg/m³

Wa Main Traffic • Upper West

Passed

Tamale Aboabo Market

Sep 18, 2026 · 9:00 AM

PM2.5

27.4µg/m³

Tamale Central High Street • Northern

Passed

Ho Market AQ Station

Sep 18, 2026 · 9:00 AM

PM2.5

11.4µg/m³

Ho Central • Volta

Passed

Damongo Town Centre

Sep 18, 2026 · 9:00 AM

PM2.5

20.1µg/m³

Salaga Central • Savannah

Passed

Built Environment UESD

Sep 18, 2026 · 8:02 AM

PM2.5

19.2µg/m³

Built Environment UESD • Eastern

Passed

Salaga AQ Station

Sep 18, 2026 · 8:00 AM

PM2.5

63.2µg/m³

Salaga Central • Savannah

Passed

Tamale Central High Street

Sep 18, 2026 · 8:00 AM

PM2.5

69.1µg/m³

Tamale Central High Street • Northern

Passed

Timestamp	Sensor	Parameter	Value	Quality
Sep 18, 2026 8:29 PM	Amasaman Amasaman • Greater Accra	PM2.5	27.3µg/m³	Passed
Sep 18, 2026 7:04 PM	West Hills Mall West Hills Mall • Greater Accra	PM2.5	23.1µg/m³	Passed
Sep 18, 2026 6:10 PM	Makola Makola • Greater Accra	PM2.5	28.9µg/m³	Passed
Sep 18, 2026 5:18 PM	Kwashieman Presby Church Kwashieman Presby Church • Greater Accra	PM2.5	23.5µg/m³	Passed
Sep 18, 2026 4:03 PM	Lapaz Intersection Lapaz Intersection • Greater Accra	PM2.5	24.6µg/m³	Passed
Sep 18, 2026 3:00 PM	Dzorwulu Fidelity Bank Dzorwulu Fidelity Bank • Greater Accra	PM2.5	25.4µg/m³	Passed
Sep 18, 2026 2:17 PM	Osu Oxford Street Osu Oxford Street • Greater Accra	PM2.5	23.7µg/m³	Passed
Sep 18, 2026 1:27 PM	Tetteh Quarshie Interchange Tetteh Quarshie Interchange • Greater Accra	PM2.5	22.9µg/m³	Passed
Sep 18, 2026 12:21 PM	Okponglo Junction Okponglo Junction • Greater Accra	PM2.5	25.5µg/m³	Passed
Sep 18, 2026 11:00 AM	Madina Zongo Junction Madina Zongo Junction • Greater Accra	PM2.5	25.8µg/m³	Passed
Sep 18, 2026 10:28 AM	Ashaley Botwe School Junction Ashaley Botwe School Junction • Greater Accra	PM2.5	23.6µg/m³	Passed
Sep 18, 2026 9:16 AM	Ashiaman Market Area Ashiaman Market Area • Greater Accra	PM2.5	26.6µg/m³	Passed
Sep 18, 2026 9:00 AM	Nalerigu Market AQ Nalerigu Town • North East	PM2.5	21.9µg/m³	Passed
Sep 18, 2026 9:00 AM	Wa Central Market Wa Main Traffic • Upper West	PM2.5	24.9µg/m³	Passed
Sep 18, 2026 9:00 AM	Tamale Aboabo Market Tamale Central High Street • Northern	PM2.5	27.4µg/m³	Passed
Sep 18, 2026 9:00 AM	Ho Market AQ Station Ho Central • Volta	PM2.5	11.4µg/m³	Passed
Sep 18, 2026 9:00 AM	Damongo Town Centre Salaga Central • Savannah	PM2.5	20.1µg/m³	Passed
Sep 18, 2026 8:02 AM	Built Environment UESD Built Environment UESD • Eastern	PM2.5	19.2µg/m³	Passed
Sep 18, 2026 8:00 AM	Salaga AQ Station Salaga Central • Savannah	PM2.5	63.2µg/m³	Passed
Sep 18, 2026 8:00 AM	Tamale Central High Street Tamale Central High Street • Northern	PM2.5	69.1µg/m³	Passed

Page 1 of 809