Additionally, in the upper area of Klong Saen-Saeb, people still make living from agriculture. Numbers of them use chemical pesticides, for example, to eliminate undesired weeds and animals. Hence, chemicals that are not supposed to transmit to Klong Saen-Saeb are transmit to it.
Moreover, as mentioned earlier that there are numbers of office and industrial buildings. These employees and factory men use Klong Saen-Saeb express boat service for transportation and these boats emit fuel and sound pollution in the canal.