What is the air quality trend in Nancagua?

Over the past 20 days, Nancagua had an average AQI of 62 based on station measurements. The worst day was 2026-05-20 with AQI 101.

How is Nancagua air quality measured?

Air quality in Nancagua 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 Nancagua, Chile

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

416h

PM2.5 Station

416h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	66	21–150	20.9 µg/m³	18h	2
2026-05-28	51	16–162	16.0 µg/m³	21h	2
2026-05-27	72	10–251	30.2 µg/m³	21h	2
2026-05-26	57	11–133	17.8 µg/m³	19h	2
2026-05-25	66	15–180	24.1 µg/m³	23h	2
2026-05-24	54	10–101	15.3 µg/m³	21h	2
2026-05-23	56	9–158	18.0 µg/m³	20h	2
2026-05-22	82	4–326	37.1 µg/m³	21h	2
2026-05-21	64	17–183	23.3 µg/m³	21h	2
2026-05-20	101	14–500	72.2 µg/m³	22h	2
2026-05-19	58	11–151	18.6 µg/m³	21h	2
2026-05-18	53	11–109	16.5 µg/m³	17h	2
2026-05-17	46	7–99	13.6 µg/m³	14h	1
2026-05-16	52	20–198	18.7 µg/m³	22h	2
2026-05-15	64	13–348	29.7 µg/m³	22h	2
2026-05-14	61	12–255	24.6 µg/m³	23h	2
2026-05-13	58	10–118	16.8 µg/m³	24h	2
2026-05-12	55	5–134	16.2 µg/m³	23h	2
2026-05-11	67	14–410	31.5 µg/m³	22h	2
2026-05-10	58	13–137	17.9 µg/m³	21h	2

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