Environmental Sciences Europe

Table 13 Coefficients for the calculation of the critical concentration of free ions as a function of the concentration of free ions with protective effect (= function of the pH value) according to De Vries et al. [51]

From: Assessing the relevance of atmospheric heavy metal deposition with regard to ecosystem integrity and human health in Germany

Coefficients	Cd	Pb	Cu	Ni	Zn
α	− 0.32	− 0.91	− 1.23	− 0.64	− 0.31
γ	− 6.34	− 3.8	− 2.05	− 2.59	− 4.63

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