Public, free, citable
Air quality reports by region
Monthly air quality data for neighbourhoods worldwide — built from real readings, backed by a tamper-proof evidence ledger. Free to read, free to share, free to cite.
Independent, verifiable, aggregate-only
Reports never expose individual readings or users. Each region needs at least 3 readings per month to publish. The underlying ledger is cryptographically chained — anyone can verify the chain has not been tampered with.