{"schema_version":"1.0","methodology_version":"atmy-datahub-v3","city":{"slug":"bulgaria/byala-cherkva","name":{"en":"Byala Cherkva","ru":"Byala Cherkva"},"country":{"en":"Bulgaria","ru":"Болгария"}},"timezone":"Europe/Sofia","status":"stale","generated_at":"2026-11-08T17:45:02.063Z","stale_after_minutes":45,"refresh_minutes":15,"max_observation_age_minutes":60,"official_max_observation_age_minutes":180,"source":{"name":"Atmy","page":"https://atmy.ai/air-quality/bulgaria/byala-cherkva/","page_ru":"https://atmy.ai/ru/air-quality/bulgaria/byala-cherkva/","methodology":"https://atmy.ai/air-quality/methodology/","license":"https://atmy.ai/legal/data/"}}