Fig. 4: Principal component analyses (PCA) and advanced correlation link between climate variables and green roof effluent parameters. | Communications Earth & Environment

Fig. 4: Principal component analyses (PCA) and advanced correlation link between climate variables and green roof effluent parameters.

From: Green roofs act as the first barrier to intercept microplastics from urban atmosphere

Fig. 4

a PCA analysis for treatment CK. b PCA analysis for planted treatments (RR and SL). c Correlation link for treatment CK. d correlation link for treatment planted treatments. Solid line: significant, p < 0.05; dash line: non-significant, p > 0.05 (CK: control group, RR: R. rosea group, SL: S. lineare group).

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