2020年07月01日： 01:00： 23.80mg/L;   03:00: 26.60mg/L;   05:00: 26.37mg/L; 07:00: 23.19mg/L; 09:00: 25.42mg/L; 11:00: 31.26mg/L; 13:00: 23.46mg/L;   15:00: 31.49mg/L; 17:00: 22.77mg/L; 19:00: 31.29mg/L; 21:00: 22.55mg/L; 23:00: 30.62mg/L.