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. 2021 Aug 4;82(2):171–179. doi: 10.1007/s00244-021-00878-4

Fig. 3.

Fig. 3

Relationship between total precipitation and average (n = 3) mass loadings (g/event) of diphenyl guanidine (DPG, dark gray lines and circle symbols) and 6PPD-quinone (6PPD-q, light gray lines and square symbols) in the Don River during hydrological events in 2019 and 2020