What is the air quality trend in High Park-Swansea?

Over the past 15 days, High Park-Swansea had an average AQI of 51 based on station measurements. The worst day was 2026-05-18 with AQI 63.

How is High Park-Swansea air quality measured?

Air quality in High Park-Swansea 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 High Park-Swansea, Canada

Name: High Park-Swansea Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near High Park-Swansea, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 15 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	43	18–167	13.8 µg/m³	2.1	16h	9
2026-05-29	57	10–160	17.8 µg/m³	12.1	24h	9
2026-05-28	32	10–100	8.2 µg/m³	1.6	24h	8
2026-05-27	51	16–169	16.0 µg/m³	6.1	24h	10
2026-05-26	43	13–123	11.4 µg/m³	6.0	24h	8
2026-05-25	60	17–188	21.1 µg/m³	11.2	24h	9
2026-05-24	47	18–153	13.6 µg/m³	7.1	24h	9
2026-05-23	60	8–118	17.5 µg/m³	2.7	24h	11
2026-05-22	56	18–181	18.9 µg/m³	5.0	24h	8
2026-05-21	57	14–181	18.2 µg/m³	1.6	24h	10
2026-05-20	56	12–161	16.9 µg/m³	7.2	24h	9
2026-05-19	49	18–89	13.9 µg/m³	8.5	24h	9
2026-05-18	63	34–159	19.0 µg/m³	29.4	24h	7
2026-05-17	60	39–93	16.9 µg/m³	27.7	24h	5
2026-05-16	42	23–63	10.6 µg/m³	15.3	8h	9

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