effluent

The new study is unusual in that it calculated the mass of microplastics in landfill leachate and wastewater influent and effluent.

Currently, treated effluent from the plant is released into the Los Angeles River in the Sepulveda Basin, providing a significant portion of the river’s flow in the area during dry times.

Again, untreated effluent polluted the rivers and the local marsh rhyne drainage system.

Detecting this along with recreational drugs and and industrial chemicals had "pointed us to sewage and other sources of urban effluent", he explained.

A post-mortem examination indicated the cause of death was due to exposure to fire and fire effluent.