Abstract
During 1983–1984 about 90% of the Dutch soft waters appeared to be acid, and 35% of them showed pH-values below 4.0. The alkalinity of most waters (70%) was less than 0.1 meq. L−1. Evidence for recent acidification is derived from temporal trends in water quality, fish population status, shifts in aquatic biota and application of current empirical models for lake acidification. It has been concluded that at least 59% of the Dutch soft waters have been recently acidified. This is a conservative estimate. Depending on the criterion used for assessment of acidification this percentage might be as high as 96%.
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Leuven, R.S.E.W., Kersten, H.L.M., Schuurkes, J.A.A.R. et al. Evidence for recent acidification of lentic soft waters in the Netherlands. Water Air Soil Pollut 30, 387–392 (1986). https://doi.org/10.1007/BF00305209
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DOI: https://doi.org/10.1007/BF00305209