EPA ACTIVE WATCH Western US & Intermountain Basins: Wildfire Smoke & Elevated PM2.5 Infiltration

Troutdale air quality.

Air quality observations and historical context for Troutdale, OR

Historical perspective

The longer view.

Annual PM2.5 concentrations · µg/m³

Regional reference: Portland (14 miles away). These historical values are inherited from that location, not measured in Troutdale.

Historical annual PM2.5 concentrations 0.05.310.7 2019: 6.2 µg/m³20192020: 10.7 µg/m³20202021: 6.4 µg/m³20212022: 7.8 µg/m³20222023: 6.4 µg/m³20232024: 4.9 µg/m³2024
View data table
Annual PM2.5 · µg/m³
YearPM2.5
20196.2
202010.7
20216.4
20227.8
20236.4
20244.9
Historical score89.4/100
Annual mean PM2.54.9 µg/m³

Available history: 2019–2024. Historical scores are distinct from current AQI and do not describe today’s conditions.

Sources and scoring method ↗

Local context

What this page tells you

This page combines annual PM2.5, unhealthy days, 5-year trend, and data coverage so you can compare long-term air quality, not just today's reading.

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89.4
Clean Air Score
Troutdale Long-term Air Quality
Based on EPA 5-year data · Loading live AQI...
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Regional Air Quality Context & Seasonal Patterns

Troutdale is treated as a local community in OR, so the most useful signal is the long-term pollution baseline rather than a single live AQI reading. Annual PM2.5 averages 4.9 ug/m3, with roughly 0 unhealthy-air days per year, and the multi-year trend is improving. Its Clean Air Score is 89.4 (grade A), which helps compare Troutdale with other OR cities. In Troutdale, historical EPA observations show that pollution levels typically peak in October (averaging an index of 36), while the cleanest air conditions occur in May (averaging 18). With an extreme events rating of 100/100, Troutdale exhibits resilient atmospheric ventilation with fewer multi-day smoke outliers. Because Troutdale does not have its own long-running EPA station in this dataset, the report uses Portland about 14 miles away as the closest proxy monitor.

Peak Season
October Peak

Autumn (Wildfire smoke drift & air stagnation)

Cleanest Air Window
May

Historically lowest pollution baseline

Sensitive Groups Guidance
Monitor real-time hourly spikes and verify indoor HEPA filtration during seasonal transitions.

Fine particulate matter (PM2.5) in Troutdale is monitored for health safety. Long-term exposure to pollutants can lead to respiratory issues, making daily checks essential for active residents in OR.

Clean Air Getaways & Cleaner Alternatives

Looking for cleaner air near Troutdale?

These destinations have significantly higher historical Clean Air Scores than Troutdale (Score: 89.4).

View All Clean Air Rankings →
141 mi away +0.2 pts higher

Bremerton, WA

89.6 / 100 Clean Air Score
144 mi away +0.2 pts higher

Bainbridge Island, WA

89.6 / 100 Clean Air Score
146 mi away +0.2 pts higher

Silverdale, WA

89.6 / 100 Clean Air Score

Indoor Air Quality in Troutdale, OR

Outdoor pollution can still affect indoor air when windows are open, filtration is weak, or wildfire smoke moves in.

Complete Troutdale Home AQI & Filtration Guide

Get custom room-by-room HEPA purifier sizing, seasonal PM2.5 trends, and local home sealing recommendations.

👉 Read Full Troutdale Guide →
AQI 0-50: Good
Windows

Usually safe to open windows for fresh air.

Air Purifier

Air purifier is optional for most households.

Stay Indoors

Normal indoor and outdoor activity is fine.

AQI 51-100: Moderate
Windows

Ventilate selectively; sensitive groups should watch symptoms.

Air Purifier

Run HEPA filtration on low if pollen, smoke smell, or traffic exhaust is noticeable.

Stay Indoors

Most people can continue normal activity; sensitive groups should keep an eye on AQI.

AQI 101-150: Unhealthy for sensitive groups
Windows

Keep windows closed so outdoor PM2.5 does not build indoors.

Air Purifier

Run HEPA filtration in bedrooms and main living spaces.

Stay Indoors

Children, older adults, and people with asthma should reduce outdoor exertion.

AQI 151+: Unhealthy
Windows

Keep windows and doors sealed as much as practical.

Air Purifier

Run filtration continuously; use the highest comfortable fan setting.

Stay Indoors

Stay indoors when possible and consider an N95 if you must go outside.

Health Recommendations

General Public

Most people can continue outdoor activities normally. Keep an eye on changing conditions.

Sensitive Groups

Children and elderly should reduce prolonged or heavy outdoor exertion if AQI rises above 50.

Running & Outdoor Exercise Guide

Explore available hourly data before planning outdoor time in Troutdale.

🏃 View Running Forecast →
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Environmental Health Dossier: Air & Tap Water in Troutdale

Atmospheric fine particulate matter (PM2.5) and municipal drinking water contaminants represent the two primary involuntary daily exposures in any household. While HEPA filtration purifies indoor air, municipal tap water often contains invisible halogenated byproducts, heavy metals, or PFAS forever chemicals.

Atmospheric Exposure
Inhalation Risk

Troutdale holds a historical Clean Air Score of 89.4/100. High PM2.5 requires True HEPA (H13) physical media filters without electronic ozone generation.

Hydrological Exposure
Ingestion Risk

Municipal utility compliance focuses on legal limits, not health guidelines. Verified solid-carbon or Reverse Osmosis filters target lead, chlorine byproducts, and micropollutants.

Review EPA Safe Drinking Water Information System (SDWIS) utility compliance reports.
Inspect Troutdale Tap Water on WaterQ.us
Head-to-Head Benchmark

Compare Troutdale Air Quality

See how Troutdale’s pollution baselines and seasonal patterns compare side-by-side.

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Frequently Asked Questions about Troutdale Air Quality

Is air quality in Troutdale safe today?

Current air quality in Troutdale is being monitored. Based on historical data, Troutdale has a clean air score of 89.4. For real-time updates, check the live monitoring panel on this page.

When is air pollution highest in Troutdale?

According to multi-year EPA observations, air pollution in Troutdale historically peaks during October (Autumn (Wildfire smoke drift & air stagnation)). The cleanest air window typically occurs in May.

What should sensitive groups do during peak air pollution in Troutdale?

Monitor real-time hourly spikes and verify indoor HEPA filtration during seasonal transitions. Maintaining certified indoor HEPA filtration is an effective way to minimize personal exposure.

What is a dangerous AQI level?

An AQI (Air Quality Index) above 100 is considered unhealthy for sensitive groups, while levels above 150 are unhealthy for everyone. Levels above 300 are hazardous.

Should I wear a mask today in Troutdale?

If the AQI in Troutdale is above 150, an N95 mask is recommended for outdoor activities to filter out fine particulate matter (PM2.5).

Higher historical scores in OR

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