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![To what extent are wastewater treatment systems a gateway for microplastic particles in the aquatic and terrestrial environments?](https://image.oaes.cc/d41dbba6-3867-499c-956f-c127aaf165bf/wecn2063.fig.1.jpg)
Figure 1. (A) Relative abundance of polymers in the inlet and outlet waters of NJ-STP; (B) Relative abundance of polymers in the inlet and outlet waters of GR-STP. NJ-STP: North Jæren sewage treatment plant; GR-STP: Grødaland sewage treatment plant.