Map of the lower Haraz Basin with major land use as well as the sampling locations; numbers indicate sampling sites.

<p>Reprinted from [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0191314#pone.0191314.ref018" target="_blank">18</a>] under a CC BY license, with permission from Elsevier, original copyright 2016.</p

Linear regressions of total element concentrations and TSS during different sampling campaigns in the lower Haraz catchment (March 2016 plus lab tests), 2012 data adapted from Nasrabadi et al. [18].

<p>Linear regressions of total element concentrations and TSS during different sampling campaigns in the lower Haraz catchment (March 2016 plus lab tests), 2012 data adapted from Nasrabadi et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0191314#pone.0191314.ref018" target="_blank">18</a>].</p

Map of the Ammer, Goldersbach, and Steinlach catchments in Southwest Germany with major types of land-use as well as the sampling locations.

<p>Reprinted from [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0191314#pone.0191314.ref011" target="_blank">11</a>] under a CC BY license, with permission from Elsevier, original copyright 2013.</p

Comparison of particulate <i>(C</i>_<i>SUS</i>) and dissolved <i>(C</i>_<i>W</i>) concentrations of metals in all four catchments [Ammer (_A, in black), Haraz (_H, in red), Steinlach (_S, in green) and Goldersbach (_G, in purple)].

<p>Comparison of particulate <i>(C</i>_<i>SUS</i>) and dissolved <i>(C</i>_<i>W</i>) concentrations of metals in all four catchments [Ammer (_A, in black), Haraz (_H, in red), Steinlach (_S, in green) and Goldersbach (_G, in purple)].</p

A comparison among particle-bound concentration of metals (mg/kg) in Ammer, Steinlach, Goldersbach and Haraz River (calculated in this study) with similar studies/ background values.

<p>A comparison among particle-bound concentration of metals (mg/kg) in Ammer, Steinlach, Goldersbach and Haraz River (calculated in this study) with similar studies/ background values.</p

Linear regressions of total element concentrations and TSS during the 2013 and 2014 sampling campaigns in the Ammer and Goldersbach catchments, Germany.

<p>Linear regressions of total element concentrations and TSS during the 2013 and 2014 sampling campaigns in the Ammer and Goldersbach catchments, Germany.</p

Linear regressions of total element concentrations and TSS during the 2014 sampling campaigns in the Steinlach catchment, Germany.

<p>Linear regressions of total element concentrations and TSS during the 2014 sampling campaigns in the Steinlach catchment, Germany.</p

Additional file 1: of The Risk of Oxygen during Cardiac Surgery (ROCS) trial: study protocol for a randomized clinical trial

SPIRIT 2013 Checklist. (PDF 877 kb