Ground Map
Tap any country — see indoor radon (where national surveys exist), adult smoking prevalence, drinking-water access gaps, and one concrete next step that fits the place. Refreshed once a day from World Bank Open Data and hand-authored country-level radon baselines from named national radiation protection agencies. Open data only, polite cadence, no scraping.
Opens on a country where surveyed radon and smoking prevalence both stand out. Use search or the worst-list to explore your own region.
Act now — what you can do
These work no matter where you live. Click a country on the map and the regional sources here re-sort to match.
Top by indicator
Top 12 countries on the active indicator. Click a row to fly there and see actions.
How this map works
- Country shading shows live data fetched once a day:
- Joint radon and smoking risk - a computed product of the radon classification (elevated/moderate/low/unsurveyed) and adult smoking prevalence. Higher = stronger case for the paired test-and-quit action.
- Indoor radon (national arithmetic mean) - average indoor radon concentration in Bq/m3 from named national radiation protection agencies (UKHSA, EPA, BfS, SURO, SSM, STUK, IRSN, Health Canada, ARPANSA, and others). Unsurveyed countries are not shaded.
- Adult tobacco use prevalence (%) - World Bank SH.PRV.SMOK, sourced from WHO Global Health Observatory.
- Population without safely-managed drinking water (%) - computed from World Bank SH.H2O.SMDW.ZS (WHO/UNICEF Joint Monitoring Programme).
- Click anywhere to see one concrete next step. The recommender derives a country profile from the indicators above and surfaces a use-case-matched action with named, citable organisations.
- Freshness. Indicators are pulled on a daily schedule, normalised into a single tiny payload, and served to every visitor. Your browser only ever talks to our own server for the data. We never scrape; we only consume documented public APIs at their published cadence.
- No accounts. No tracking. No upload. Outbound calls from the browser: our own server (live data + borders) and OpenFreeMap (basemap).
Sources: country borders — Natural Earth (public domain); basemap — OpenFreeMap & OpenStreetMap contributors (ODbL); adult tobacco use prevalence and drinking-water access — World Bank Open Data (CC BY 4.0; SH.PRV.SMOK from WHO Global Health Observatory, SH.H2O.SMDW.ZS from WHO/UNICEF JMP); indoor radon baselines — WHO Handbook on Indoor Radon and named national radiation protection agencies (UKHSA, US EPA, BfS, SURO, SSM, STUK, IRSN, Health Canada, ARPANSA, and equivalent bodies); arsenic-affected aquifer list — WHO Arsenic fact sheet and named regional surveys; rendering — MapLibre GL JS (BSD-3); action catalog assembled from public materials of named organisations: the World Health Organization, the IARC, UNSCEAR, the US EPA, UKHSA, the AARST, Health Canada, IRSN, BfS, the WHO/UNICEF JMP, UNICEF, Image Gently, and Choosing Wisely.
National figures hide local realities. Where a country has no comprehensive national radon survey, we display “no current reading” rather than guessing - that gap itself is sometimes the action.