2025年10月20日: 00:00: 31.88mg/L; 01:00: 26.88mg/L; 02:00: 26.28mg/L; 03:00: 31.41mg/L; 04:00: 30.09mg/L; 05:00: 25.92mg/L; 06:00: 31.88mg/L; 07:00: 28.53mg/L; 08:00: 27.22mg/L; 09:00: 32.11mg/L; 11:00: 26.86mg/L; 12:00: 27.45mg/L; 13:00: 31.86mg/L; 14:00: 26.82mg/L; 15:00: 26.73mg/L; 16:00: 31.36mg/L; 17:00: 29.81mg/L; 18:00: 26.60mg/L; 19:00: 31.35mg/L; 20:00: 29.81mg/L; 21:00: 26.37mg/L; 22:00: 30.40mg/L; 23:00: 29.21mg/L.