American River At Rainbow Bridge Chemical Oxygen Demand (COD) ug/L Time Series Data

Measurements of Chemical Oxygen Demand (COD) collected at American River At Rainbow Bridge. Currently collected twice a year, previously collected quarterly. Access...本数据集涵盖彩虹桥监测点美洲河断面的化学需氧量（Chemical Oxygen Demand, COD）实测数据。该监测项目目前每年开展两次采样，此前采样频次为每季度一次。数据获取方式……