jM*{"app":"GaiaLog","data_type":"air_quality","timestamp":1758452400000,"payload":{"air_quality_index":13,"carbon_monoxide":1.9,"coarse_particulate_matter_pm10":13,"fine_particulate_matter_pm25":13,"location":"Jinyuetan, Changchun (é¿æ¥åææ½)","location_ascii":"Jinyuetan, Changchun (?????)","nitrogen_dioxide":3.7,"ozone":0,"timestamp":"2025-09-21T11:00:00.000Z","payload_sha256":"42ae00c5848c815d98395b968c9271f1a5acaa120d23c2fe3f739ddae0c175f0","db_source_hash":"eyJ0eXBlIjoiYWlyX3F1YWxpdHkiLCJhcSI6eyJhcWkiOjEzLCJwbTI1IjoxMywi"},"provider":"WAQI"}
https://whatsonchain.com/tx/c8e4a5cf39d6d2f330e46fb5b737454c82965cf14a4d2b2f6eb3e58d5e86e004