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EHSPI city explorer
Environmental Health Sensitivity Performance Index — composite and per-condition scores for 10 monitored cities. Select a city and condition to explore the insight panel.
London, UK · All conditions
72
out of 100 — higher is more favourable
High confidence
Score relative to 10-city set · EHSPI v1.6
Condition breakdown · London
Migraine 68
Respiratory 74
Cardiovascular 76
Sleep 70
Allergy 73
Environmental insight · London, UK
Moderate risk Barometric pressure volatility over the past 72 hours has been elevated for London, with a 6.2 mb drop in the most recent 24-hour window. This pattern is associated with increased migraine onset frequency in weather-sensitive populations. Air quality is within acceptable bounds; pollen load is low to moderate for this period.
Pressure Δ (24h)−6.2 mb
Pressure volatility (72h)8.4 mb
Heat index (72h mean)16.3 °C
AQI (peak)42 — Good
Pollen loadLow–Moderate
Supporting evidence
1Prince et al. (2017) — Barometric pressure and migraine onset. Headache, 57(8).
2Hoffmann et al. (2015) — Weather sensitivity in migraineurs. J Neurology, 262(4).
3Mukamal et al. (2009) — Weather and air quality as triggers. Neurology, 72(10).
API call powering this insight
GET /v1/ehspi?sensitivity=all&mode=lifetime X-Api-Key: your-key // Returns all 20 cities with composite + 5 condition scores, // weight vectors, confidence labels, and nightly cache timestamp.
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One GET call returns all cities, all conditions, full weight vectors. Cached nightly, available instantly.