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Figure 1 | Environmental Sciences Europe

Figure 1

From: Embryotoxic and proteotoxic effects of water and sediment from the Neckar River (Southern Germany) to zebrafish (Danio rerio) embryos

Figure 1

Basic physical and chemical conditions at three sampling sites along the Neckar River in 2011. Water classification was based on the directives of the German Working Group for Water Issues (LAWA): class I (dark blue) - unpolluted to very slightly polluted, class I-II (light blue) - slightly polluted, class II (dark green) - moderately polluted, class II-III (light green) - critically polluted, class III (yellow) - heavily polluted, class III-IV (orange) - very heavily polluted and class IV (red) - excessively polluted [27]. In May 2011, conductivity measurements could not be carried out because of equipment failure. Ammonium-N values are given in a range due to detecting limitations.

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