2019年12月10日： 01:00: 22.13mg/L;   03:00: 28.30mg/L;   05:00:   28.85mg/L;   07:00: 22.32mg/L;   09:00: 24.55mg/L;   11:00: 29.45mg/L;   13:00: 30.01mg/L;   15:00: 26.16mg/L;   17:00:   25.85mg/L;   19:00: 24.46mg/L;   21:00: 28.69mg/L;   23:00: 23.86mg/L.