Figure 3: Comparison of bulk parameters and OM composition.
From: Molecular composition of organic matter controls methylmercury formation in boreal lakes
Correlation analyses between conventional parameters (diamonds) measured in sediments (black) and their overlying water (blue) with the two first components of the PCA used to describe sediment OM molecular composition variation in the 10 studied boreal lakes. Similarly to Fig. 1, PC1/2-loadings of the pyrolytic organic compounds are sorted out into according to their origin (algal, plant, bacteria, invertebrate or unknown) and to their degradation status (fresh, degraded or unknown).
