What is the air quality trend in Puttalam?

Over the past 14 days, Puttalam had an average AQI of 48 based on station measurements. The worst day was 2026-07-15 with AQI 88.

How is Puttalam air quality measured?

Air quality in Puttalam is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Puttalam, Sri Lanka

Name: Puttalam Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Puttalam, Sri Lanka.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

277h

PM2.5 Station

277h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	53	53–53	13.0 µg/m³	9.2	1h	1
2026-07-21	58	45–89	15.5 µg/m³	11.3	22h	1
2026-07-20	58	47–79	15.5 µg/m³	10.7	24h	1
2026-07-19	50	45–71	12.1 µg/m³	7.6	24h	1
2026-07-18	51	46–54	12.3 µg/m³	8.0	23h	1
2026-07-17	55	50–60	14.0 µg/m³	9.3	24h	1
2026-07-16	70	56–138	21.1 µg/m³	14.3	24h	1
2026-07-15	88	38–130	29.5 µg/m³	21.1	13h	1
2026-07-13	29	24–35	7.0 µg/m³	4.3	6h	1
2026-07-12	26	24–29	6.2 µg/m³	3.6	23h	1
2026-07-11	27	23–36	6.4 µg/m³	3.6	24h	1
2026-07-10	38	29–53	9.1 µg/m³	5.7	24h	1
2026-07-09	45	24–62	11.1 µg/m³	7.5	24h	1
2026-07-08	36	24–66	8.9 µg/m³	5.9	21h	1

Back to Puttalam Air Quality