Cleanairlk

14/08/2025

During this week, winds continued to flow from near-equatorial Arabian Sea toward Sri Lanka. This resulted in moderate air pollution levels across most air monitoring stations in the country. The highest Air Quality Index (AQI) of 77 was recorded in Akurana, while the lowest AQI of 34 was observed in Colombo.

Summaries for the stations from 05 - 11 August 2025
Air quality index was:

Moderate (AQI 51 - 100): Akurana, Digana, Kurunegala, Mirihana, Battaramulla, Ambalangoda, Ambalantota, Puttalam, Trincomalee, Anuradhapura, Jaffna, and Battaramulla.

Good (AQI 0 - 50): Colombo and Nuwara Eliya.

See More: https://fect.lk/air-quality/

29/07/2025

During this week, strong westerly winds continued to flow from the Arabian Sea toward Sri Lanka. This resulted in moderate air pollution levels across most air quality monitoring stations in the country and specially in the western coastal station. The highest Air Quality Index (AQI) of 90 was recorded in Ambalangoda, while the lowest AQI of 27 was observed in Nuwara Eliya.

Summaries for the stations from 21 July to 27 July 2025
Air quality index was:

Moderate (AQI 51 - 100): Chilaw, Digana, Kurunegala, Mirihana, Ambalangoda, Puttalam, Trincomalee, Anuradhapura, Jaffna, and Battaramulla.

Good (AQI 0 - 50): Colombo, Nuwara Eliya, and Ambalantota.

See more : https://fect.lk/air-quality/

16/07/2025

During this week, winds flowed from the Arabian Sea toward Sri Lanka, primarily from the northwest and north. This resulted in moderate air pollution levels across all air quality monitoring stations in the country. The highest Air Quality Index (AQI) of 85 was recorded in Digana, while the lowest AQI of 37 was observed in Colombo.

Summaries for the stations from 06 July to 12 July 2025
Air quality index was:
- Moderate (AQI 51 - 100): Chilaw, Digana, Kurunegala, Mirihana, Ambalanthota, Ambalangoda, Puttalama, Trincomalee, Anuradhapura, Jaffna, Gampaha, Battaramulla, and Nuwara Eliya.
- Good (AQI 0 - 50): Colombo.

See more : https://fect.lk/air-quality/

01/07/2025

Pristine air from the southern Indian Ocean was carried into Sri Lanka by southwesterly winds throughout the week. This resulted in low air pollution across all air quality monitoring stations in Sri Lanka. The highest air quality index of 67 was recorded in Ambalangoda, while the lowest air quality index of 42 was recorded in Colombo.

Summaries for the stations from 22 to 28 June 2025
Air quality index was:

Moderate (AQI 51 - 100): Akurana, Digana, Virtusa, Mirihana, Battaramulla, Chilaw, Ambalangoda, Anuradhapura, Jaffna.

Good (AQI 0 - 50): Nuwara Eliya, Colombo, Negombo, and Adampan.

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

25/06/2025

Pristine air from the southern Indian Ocean was carried into Sri Lanka by southwesterly winds throughout the week. This resulted in low air pollution across all air quality monitoring stations in Sri Lanka. The highest air quality of 67 was recorded at Ambalangoda, while the lowest of 32 was recorded at Nuwara Eliya.


Summaries for the stations from 16 to 22 June 2025
Air Quality was:

Moderate (AQI 51 - 100): Akurana, Digana, Anuradhapura, Colombo, Ambalangoda, Chilaw, Ratnapura, and Jaffna.

Good (AQI 0 - 50): Nuwara Eliya, Battaramulla, and Negombo.

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

17/06/2025

Most of the monitoring stations are not operational (Colombo (Gregory's Road), Colombo (US Embassy), Battaramulla (CEA), Negombo, Jaffna, and Dambulla). May I drop them from the AQ table for this week?

This is the weekly AQ social media text from 09 - 16 June 2025 for your review.
Air quality across Sri Lanka remained at low pollution levels throughout the week at all monitoring stations. This was due to southwesterly winds bringing clean air from the southern Indian Ocean. The weekly average Air Quality Index (AQI) ranged from 21 to 73.

Summaries for the stations from 09-16 June 2025

Air Quality was:

· Moderate (AQI 51 - 100): Akurana, Ambalantota, and Trincomalee.
· Good (AQI 0 - 50): Digana, Nuwara Eliya, Kurunegala, Battaramulla, Gampaha, Puttalam.

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

11/06/2025

Air quality in Sri Lanka has been at low pollution levels across all monitoring stations throughout the week. This was due to southwesterly winds transporting clean air from the southern Indian Ocean into the country. As a result, the Air Quality Index (AQI) ranged between 46 and 88.

Summaries for the stations from 26 May to 01 June 2025

Air Quality was:
Moderate (AQI 51 - 100): Akurana, Digana, Kurunegala, Battaramulla, Gampaha, Negombo, Ambalantota, Puttalam, Trincomalee, Jaffna, and Badulla

Good (AQI 0 - 50): Nuwara Eliya and Colombo

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

11/06/2025

Air quality in Sri Lanka has been at low pollution levels across all monitoring stations throughout the week. This was due to southwesterly winds transporting clean air from the southern Indian Ocean into the country. As a result, the Air Quality Index (AQI) ranged between 46 and 88.

Summaries for the stations from 26 May to 01 June 2025
Air Quality was:

Moderate (AQI 51 - 100): Akurana, Digana, Kurunegala, Battaramulla, Gampaha, Negombo, Ambalantota, Puttalam, Trincomalee, Jaffna, and Badulla

Good (AQI 0 - 50): Nuwara Eliya and Colombo

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

05/06/2025

Pristine air from the Southern Indian Ocean was carried into the country by southwesterly winds throughout the week. This resulted in low air pollution across all air quality monitoring stations in Sri Lanka.

Summaries for the stations from 26 May to 01 June 2025

Air Quality was:
Moderate (AQI 51 - 100): Akurana, Kurunegala, Negombo, Trincomalee, Puttalam, Jaffna.

Good (AQI 0 - 50): Digana, Nuwara Eliya, Colombo, Battaramulla, Gampaha, Ambalantota, and Dambulla.

Watch the video => https://youtu.be/4qw_IOcwsWg?si=Q3iNIzq9q1fkyuSh

For detailed information visit : https://bit.ly/fect_AQ

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

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03/06/2025

Pristine air from the Southern Indian Ocean was carried into the country by southwesterly winds throughout the week. This resulted in low air pollution across all air quality monitoring stations in Sri Lanka.

Summaries for the stations from 26 May to 01 June 2025
Air Quality was:

Moderate (AQI 51 - 100): Akurana, Kurunegala, Negombo, Trincomalee, Puttalam, Jaffna.

Good (AQI 0 - 50): Digana, Nuwara Eliya, Colombo, Battaramulla, Gampaha, Ambalantota, and Dambulla.

For detailed information visit : https://bit.ly/fect_AQ

Real time observations are at

Check out our previous air quality reports: https://bit.ly/aq_archives

Data Sources: Ambalantota, Negombo, Nuwara Eliya, Kandy is from CEA,
Battaramulla is from CEA, Battaramulla (Pelawatte) is from the Overseas School of Colombo and the others are from FECT.

28/05/2025

Today, Sri Lanka is experiencing moderate air pollution, with the Air Quality Index (AQI) ranging from 0 to 91.

As of this morning (10:54 am):

Moderate air quality (AQI 51-100): Jaffna, Adampan, Kilinochchi, Mulliyavalai, Trincomalee, Polonnaruwa, Anuradhapura, Chilaw, Puttalam, Akurana, Digana, Dambulla, Negombo, Nugegoda, Battaramulla, Ratnapura, Kalawana, Moneragala, Bandarawela, Galle, Ambalangoda.

Good air quality (AQI 0-50): Batticaloa, Kurunegala, Nawalapitiya, Kandy, Nuwara Eliya, Colombo, Gampaha, Homagama, Mahiyangana, Deniyaya, Ambalantota.

The highest AQI is in Galle, while the lowest AQI is in Batticaloa.

27/05/2025

Today, Sri Lanka is experiencing low air pollution, with the Air Quality Index (AQI) ranging from 0 to 73.

As of this morning (10:10 am):

Moderate air quality (AQI 51-100): Adampan, Mulliyavalai, Trincomalee, Anuradhapura, Chilaw, Puttalam, Kurunegala, Akurana, Digana, Dambulla, Colombo, Gampaha, Nugegoda, Battaramulla, Ratnapura, Kalawana, Moneragala, Galle, Ambalangoda.

Good air quality (AQI 0-50): Jaffna, Kilinochchi, Batticaloa, Polonnaruwa, Nawalapitiya, Negombo, Kandy, Nuwara Eliya, Homagama, Mahiyangana, Bandarawela, Deniyaya, Ambalantota.

The highest AQI is in Ambalangoda, while the lowest AQI is in Batticaloa.