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作者:Teresa Latour , Michal Drobnik , Danuta Sziwa
来源:[J].Roczniki Panstwowego Zakladu Higieny, 2015, Vol.66 (1)
摘要:... Water derived from Miocene aquifer in Wielkopolska region (Poland) has a ‘brown-black’ colouration resulting from humus substances. Because this colour is difficult to remove, such water is considered unfit for human consumption. The presence of naturally occurring humus...

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