What is the air quality trend in La Serena?

Over the past 7 days, La Serena had an average AQI of 51 based on station measurements. The worst day was 2026-07-16 with AQI 73.

How is La Serena air quality measured?

Air quality in La Serena 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 La Serena, Chile

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

Historical PM2.5 and AQI trend from monitoring stations near La Serena, Chile.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

125h

PM2.5 Station

125h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	50	9–169	17.2 µg/m³	18h	1
2026-07-20	38	4–75	9.8 µg/m³	17h	2
2026-07-19	41	14–72	10.1 µg/m³	17h	2
2026-07-18	56	2–146	17.0 µg/m³	22h	2
2026-07-17	50	16–311	22.6 µg/m³	18h	1
2026-07-16	73	1–296	37.8 µg/m³	19h	1
2026-07-15	54	13–150	16.2 µg/m³	14h	1

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