Abstract：
:Prolonged use of biosolids with high metal content may result in diffuse pollution across large regions, especially if such ions can move freely through the soil profile and reach underground water sources. The objective of this study was to verify whether Cr added to the soil surface in the form of hydrolysed leather or a soluble salt would migrate over significant distances in four subtropical soils differing in physical, chemical and mineralogical properties. Horizontal and vertical mobility were assessed in Petri dishes and small pots, respectively, using low (12 mg kg-1 soil) and high Cr levels (150 mg kg-1 soil) added to the soil surface. Irrespective of concentration, soluble Cr salts were found to move more easily in soils with low organic matter and clay content. Contrarily, Cr added as hydrolysed leather exhibited negligible mobility and tended to accumulate in the vicinity of application.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Bavaresco J,Fink JR,Rodrigues ML,Gianello C,Barrón V,Torrent Jdoi
10.1007/s00128-016-1941-1subject
Has Abstractpub_date
2016-12-01 00:00:00pages
881-887issue
6eissn
0007-4861issn
1432-0800pii
10.1007/s00128-016-1941-1journal_volume
97pub_type
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