What is the air quality trend in Nancagua?

Over the past 20 days, Nancagua had an average AQI of 50 based on station measurements. The worst day was 2026-08-23 with AQI 78.

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
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

402h

PM2.5 Station

402h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	51	15–119	14.7 µg/m³	17h	2
2026-09-04	47	21–137	12.4 µg/m³	19h	2
2026-09-03	36	10–65	9.1 µg/m³	21h	2
2026-09-02	35	11–67	8.9 µg/m³	19h	2
2026-09-01	58	12–207	21.7 µg/m³	21h	2
2026-08-31	45	10–89	12.1 µg/m³	22h	2
2026-08-30	44	10–78	11.4 µg/m³	22h	2
2026-08-29	56	17–286	22.4 µg/m³	22h	2
2026-08-28	40	15–75	9.9 µg/m³	21h	2
2026-08-27	40	12–89	10.4 µg/m³	19h	2
2026-08-26	35	15–89	9.3 µg/m³	19h	2
2026-08-25	55	19–330	26.9 µg/m³	16h	2
2026-08-24	74	14–215	30.4 µg/m³	22h	2
2026-08-23	78	14–183	31.3 µg/m³	21h	2
2026-08-22	55	19–165	17.0 µg/m³	20h	2
2026-08-21	53	2–148	16.1 µg/m³	20h	2
2026-08-20	51	2–154	15.3 µg/m³	20h	2
2026-08-19	53	14–122	15.9 µg/m³	20h	2
2026-08-18	51	15–162	15.6 µg/m³	21h	2
2026-08-17	44	11–95	12.3 µg/m³	20h	2

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