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. 2019 May 15;7(5):136. doi: 10.3390/microorganisms7050136

Figure 1.

Figure 1

Sampling sites on the rivers Tywi, Cothi and Dulas (Sites 5, 6 and 7 represent weekly sample points; Monthly samples comprised Tywi upstream of Waste water treatment Works (WWTW *) (A); Tywi downstream of WWTW * (B); Cothi upstream of WWTW (C); Cothi downstream of WWTW * (D); Sites 1, 2, 3, 4, 6 and 7 represent sites sampled on the same day as the fine sampling site, (5) sites which were sampled on three occasions every 30 min, and the remaining sites were sampled once on each occasion).