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

Sparks air quality.

Air quality observations and historical context for Sparks, NV

Historical perspective

The longer view.

Annual PM2.5 concentrations · µg/m³

Historical annual PM2.5 concentrations 0.06.011.9 2019: 5.7 µg/m³20192020: 11.1 µg/m³20202021: 11.9 µg/m³20212022: 9 µg/m³20222023: 6.6 µg/m³20232024: 6 µg/m³2024
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Annual PM2.5 · µg/m³
YearPM2.5
20195.7
202011.1
202111.9
20229.0
20236.6
20246.0
Historical score83.4/100
Annual mean PM2.56.0 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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83.4
Clean Air Score
Sparks Long-term Air Quality
Based on EPA 5-year data · Loading live AQI...
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Regional Air Quality Context & Seasonal Patterns

Sparks is treated as a local community in NV, so the most useful signal is the long-term pollution baseline rather than a single live AQI reading. Annual PM2.5 averages 6 ug/m3, with roughly 0 unhealthy-air days per year, and the multi-year trend is relatively stable. Its Clean Air Score is 83.4 (grade B), which helps compare Sparks with other NV cities. In Sparks, historical EPA observations show that pollution levels typically peak in December (averaging an index of 46), while the cleanest air conditions occur in March (averaging 16). With an extreme events rating of 100/100, Sparks exhibits resilient atmospheric ventilation with fewer multi-day smoke outliers. This report uses direct city-level monitor coverage where available, so the trend is tied closely to conditions in Sparks.

Peak Season
December Peak

Winter (Temperature inversions & woodsmoke trapping)

Cleanest Air Window
March

Historically lowest pollution baseline

Sensitive Groups Guidance
Keep home windows sealed during calm late evening hours when surface inversions concentrate particulates near ground level.

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

Clean Air Getaways & Cleaner Alternatives

Looking for cleaner air near Sparks?

These destinations have significantly higher historical Clean Air Scores than Sparks (Score: 83.4).

View All Clean Air Rankings →
3 mi away +5.8 pts higher

Reno, NV

89.2 / 100 Clean Air Score
346 mi away +4.5 pts higher

Enterprise, NV

87.9 / 100 Clean Air Score
341 mi away +1.6 pts higher

Spring Valley, NV

85 / 100 Clean Air Score

Indoor Air Quality in Sparks, NV

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

Complete Sparks Home AQI & Filtration Guide

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

👉 Read Full Sparks 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 Sparks.

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

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

Sparks holds a historical Clean Air Score of 83.4/100. 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 Sparks Tap Water on WaterQ.us
Head-to-Head Benchmark

Compare Sparks Air Quality

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

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Frequently Asked Questions about Sparks Air Quality

Is air quality in Sparks safe today?

Current air quality in Sparks is being monitored. Based on historical data, Sparks has a clean air score of 83.4. For real-time updates, check the live monitoring panel on this page.

When is air pollution highest in Sparks?

According to multi-year EPA observations, air pollution in Sparks historically peaks during December (Winter (Temperature inversions & woodsmoke trapping)). The cleanest air window typically occurs in March.

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

Keep home windows sealed during calm late evening hours when surface inversions concentrate particulates near ground level. 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 Sparks?

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

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