ALUMINUM CYCLE

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ALUMINUM CYCLE

ALUMINUM AND MINING INDUSTRY
MINERALS Al-silicates
Nonsilicates feldspars
Al(OH)3 gibbsite micas
AlPO42H2O variscite kaolines
alunite

basaluminite
PLANT-AVAILABLE ALUMINUM Al3 AlOH
2 Al(OH)2 Al(OH)4- Al-organic chelates Al13
polymers
Acid rains
Acidification, pH lt 5.5
Acid rains
Weathering
SOILS
Acid rains dust
(Water and food)
Alkaline decomposition, pH gt 7
Acid r rains dust
Carboxylate and phenolic complexes
Accumulation
Adsorption
ORGANIC MATTER
Accumulation
Adsorption
CULTIVATED PLANTS
HUMANS
Food
Root, Shoots and germination impairment Reduced
P and K uptake and impaired Ca2 transport
Seafood
FORESTS
Meat
Neuro- toxicity Embrio- toxicity
Milk
DOMESTIC ANIMALS
Neuro- toxicity Embrio- toxicity
Forage
Die-backs
WILD ANIMALS
OCEAN
Embrio-and neurotoxicity accumulation in algae,
fish and animals