Release of cadmium, copper, and lead from urban soils of Copenhagen

Lijun Li; Peter Engelund Holm; Helle Marcussen; Hans Chr. Bruun Hansen

doi:10.1016/j.envpol.2013.12.016

Release of cadmium, copper, and lead from urban soils of Copenhagen

Lijun Li, Peter Engelund Holm, Helle Marcussen, Hans Chr. Bruun Hansen

Section for Environmental Chemistry and Physics

29 Citations (Scopus)

Abstract

We studied the bonding and release kinetics of Cd, Cu and Pb from different soils in the older metropolitan area of Copenhagen. Total Cd, Cu and Pb concentrations were elevated 5-27 times in the urban soils compared to an agricultural reference soil, with Cd and Pb in mainly mobilisable pools and Cu in strongly bound pools. The soils were subjected to accelerated leaching studies in Ca(NO₃)₂ or HNO₃ solutions resulting in release up to 78, 18 and 15% of total Cd, Cu and Pb soil concentrations over a period of 15 weeks. The relative initial Cd and Pb release rates increased 10 fold when pH decreased 2 and 3 units, respectively, while increases in Cu release rates were only seen at pH below 4. The total leachable Cu and Pb pools were higher in urban soils compared the agricultural reference soil but not for Cd.

Original language	English
Journal	Environmental Pollution
Volume	187
Pages (from-to)	90-97
Number of pages	8
ISSN	0269-7491
DOIs	https://doi.org/10.1016/j.envpol.2013.12.016
Publication status	Published - Apr 2014

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title = "Release of cadmium, copper, and lead from urban soils of Copenhagen",

abstract = "We studied the bonding and release kinetics of Cd, Cu and Pb from different soils in the older metropolitan area of Copenhagen. Total Cd, Cu and Pb concentrations were elevated 5-27 times in the urban soils compared to an agricultural reference soil, with Cd and Pb in mainly mobilisable pools and Cu in strongly bound pools. The soils were subjected to accelerated leaching studies in Ca(NO3)2 or HNO3 solutions resulting in release up to 78, 18 and 15% of total Cd, Cu and Pb soil concentrations over a period of 15 weeks. The relative initial Cd and Pb release rates increased 10 fold when pH decreased 2 and 3 units, respectively, while increases in Cu release rates were only seen at pH below 4. The total leachable Cu and Pb pools were higher in urban soils compared the agricultural reference soil but not for Cd.",

author = "Lijun Li and Holm, {Peter Engelund} and Helle Marcussen and Hansen, {Hans Chr. Bruun}",

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T1 - Release of cadmium, copper, and lead from urban soils of Copenhagen

AU - Li, Lijun

AU - Holm, Peter Engelund

AU - Marcussen, Helle

AU - Hansen, Hans Chr. Bruun

PY - 2014/4

Y1 - 2014/4

N2 - We studied the bonding and release kinetics of Cd, Cu and Pb from different soils in the older metropolitan area of Copenhagen. Total Cd, Cu and Pb concentrations were elevated 5-27 times in the urban soils compared to an agricultural reference soil, with Cd and Pb in mainly mobilisable pools and Cu in strongly bound pools. The soils were subjected to accelerated leaching studies in Ca(NO3)2 or HNO3 solutions resulting in release up to 78, 18 and 15% of total Cd, Cu and Pb soil concentrations over a period of 15 weeks. The relative initial Cd and Pb release rates increased 10 fold when pH decreased 2 and 3 units, respectively, while increases in Cu release rates were only seen at pH below 4. The total leachable Cu and Pb pools were higher in urban soils compared the agricultural reference soil but not for Cd.

AB - We studied the bonding and release kinetics of Cd, Cu and Pb from different soils in the older metropolitan area of Copenhagen. Total Cd, Cu and Pb concentrations were elevated 5-27 times in the urban soils compared to an agricultural reference soil, with Cd and Pb in mainly mobilisable pools and Cu in strongly bound pools. The soils were subjected to accelerated leaching studies in Ca(NO3)2 or HNO3 solutions resulting in release up to 78, 18 and 15% of total Cd, Cu and Pb soil concentrations over a period of 15 weeks. The relative initial Cd and Pb release rates increased 10 fold when pH decreased 2 and 3 units, respectively, while increases in Cu release rates were only seen at pH below 4. The total leachable Cu and Pb pools were higher in urban soils compared the agricultural reference soil but not for Cd.

U2 - 10.1016/j.envpol.2013.12.016

DO - 10.1016/j.envpol.2013.12.016

M3 - Journal article

C2 - 24463001

SN - 0269-7491

VL - 187

SP - 90

EP - 97

JO - Environmental Pollution

JF - Environmental Pollution

ER -

Release of cadmium, copper, and lead from urban soils of Copenhagen

Abstract

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