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Table 1 Overview of analyzed stormwater quality parameters for the 2019 sampling season

From: Assessment of stormwater discharge contamination and toxicity for a cold-climate urban landscape

Date

Sites

pH

TDS

EC

DOC

COD

TSS

(–)

(mg/L)

(μS/cm)

(mg/L)

(mg/L)

(mg/L)

June 12, 2019

7

8.12 (0.90)

648 (378)

1296 (733)

36.2 (22.6)

289 (229)

129 (105)

June 20, 2019

7

9.18 (0.52)

375 (114)

768 (228)

12.8 (4.4)

246 (168)

451 (315)

July 25, 2019

7

8.19 (0.10)

326 (145)

667 (290)

12.8 (4.1)

93.1 (27.4)

44.1 (22.8)b

August 22, 2019

7

6.48 (1.00)a

346 (235)

707 (468)

154 (145)a

1401 (743)a

494 (386)

Average (SD)

7

7.99 (1.12)

424 (151)

859 (294)

53.9 (67.5)

508 (602)

280 (226)

  1. Parameters are grouped by sampling event (date) with average (standard deviation) across seven sites presented for each sampling event. Additional file 1: Table S2 includes individual outfall information for each of these sampling events
  2. aSignificantly different (p ≤ 0.05) from average of other storm events
  3. bSignificantly different from June 20 to August 22 events