jM.{"app":"GaiaLog","data_type":"air_quality","timestamp":1758502800000,"payload":{"air_quality_index":30,"carbon_monoxide":2.8,"coarse_particulate_matter_pm10":22,"fine_particulate_matter_pm25":30,"location":"Bus Factory, Changchun (é¿æ¥å®¢è½¦å)","location_ascii":"Bus Factory, Changchun (?????)","nitrogen_dioxide":8.7,"ozone":0,"timestamp":"2025-09-22T01:00:00.000Z","payload_sha256":"acdcb50420f6f139bf7650520b74ff4c66fa64c63298fe0d3105aae2615b8bcf","db_source_hash":"eyJ0eXBlIjoiYWlyX3F1YWxpdHkiLCJhcSI6eyJhcWkiOjMwLCJwbTI1IjozMCwi"},"provider":"WAQI"}
https://whatsonchain.com/tx/fc20ef5b3955e757f66f411abe4e33fa5abe2b5cbca421d4e6d2f272a5ebdf9c