What is the air quality trend in Carmarthen?

Over the past 3 days, Carmarthen had an average AQI of 31 based on station measurements. The worst day was with AQI .

How is Carmarthen air quality measured?

Air quality in Carmarthen 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 Carmarthen, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Carmarthen, United Kingdom.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

31h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-12	40	38–42	9.6 µg/m³	5h	1
2026-04-11	34	25–46	8.1 µg/m³	17h	1
2026-04-10	21	8–38	5.1 µg/m³	9h	1

Back to Carmarthen Air Quality