MONITORING COVERAGE
Air Quality Evidence
Upper Darby EPA Monitor
AQS 42-045-0002 · FEM/FRM
LIVE · PM₂.₅
Chester EPA Monitor
AQS 42-045-0109 · FEM/FRM
LIVE · PM₂.₅
Meteorological Context
Philadelphia Airport · ERA5
Wind · temp · humidity · pressure
MET REFERENCE
Future Expansion
QuantAQ 32-sensor network · TEI v0.2
PLANNED
AQS certified (historical)
2022 – 2025
Observations
65,682
2026 · AirNow monitoring
Pending API key → register free at airnowapi.org
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Coverage Expansion Roadmap
Pennsylvania
TEI v3.0
└
Philadelphia Metro
TEI v2.0
└
Delaware County
TEI v0.2
├
Upper Darby
Active · AQS 42-045-0002
└
Chester
Active · AQS 42-045-0109
Scientifically honest hierarchy. Each level adds spatial resolution and interpretation capacity.
PM₂.₅ (µg/m³)
Current
015355575150+
Evidence Timeline
Historical · Current · Monitoring · Forecast · Insights
Historical
116 Episodes
Current Status
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Monitoring
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Forecast
External
Historical Learning
Episodes
116
Peak PM2.5
88.2 µg/m³
High-Risk Season
Summer
Most common pattern
Regional Transport
Episode frequency
~29 per year · 2022–2025
Largest event
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Regional Transport
Inter-Site Divergence
Uncertain
Abstained
Current Interpretation
Upper Darby · AQS 42-045-0002
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Chester · AQS 42-045-0109
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Monitoring Status
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Active Watch
No emerging environmental event detected.
External Guidance
SourceAirNow
PurposePlanning only
ECF ReliabilityNot used in computation
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Seasonal Risk Pattern (2022–2025)
Jan
Jun 2023 ⚠
Dec
Evidence Insights
Today's conditions will be compared against 116 historical episodes to identify patterns, similar events, and explain what the evidence means in plain terms.
Coming in TEI v2.0
Most similar past eventPending
Pattern match confidencePending
Key difference from matchPending
Episodes by Category
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Total
Most Recent Historical Episode
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Peak PM₂.₅
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View episode details ›