jM>{"app":"GaiaLog","data_type":"air_quality","timestamp":1758520800000,"payload":{"air_quality_index":43,"carbon_monoxide":1.9,"coarse_particulate_matter_pm10":16,"fine_particulate_matter_pm25":0,"location":"Chongming City Bridge, Shanghai (å´æåæ¡¥)","location_ascii":"Chongming City Bridge, Shanghai (????)","nitrogen_dioxide":1.4,"ozone":43.1,"timestamp":"2025-09-22T06:00:00.000Z","payload_sha256":"2d3d5015971d4982bef1941c8f79a00b33c96e7e2a60f952631e0234b8a64b4d","db_source_hash":"eyJ0eXBlIjoiYWlyX3F1YWxpdHkiLCJhcSI6eyJhcWkiOjQzLCJwbTI1IjowLCJw"},"provider":"WAQI"}
https://whatsonchain.com/tx/594a326643f5cc8a3aa11d6d2f01e286d9ea31b4d23211c8c8fd39a8bb2cdda5