drop_name  NO3_avg  PO4_avg  silicate_avg  NO2_avg  NH4_avg  ISO_DateTime_deploy  ISO_DateTime_recover  lat        lon          
Leggo1     33.81    2.31     111.85        0.015    0.23     2014-12-16T09:00:00  2014-12-16T19:26:00   11.36639   142.432555