PMID- 25863574
OWN - NLM
STAT- MEDLINE
DCOM- 20160429
LR  - 20150818
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 535
DP  - 2015 Dec 1
TI  - Residual impact of aged nZVI on heavy metal-polluted soils.
PG  - 79-84
LID - S0048-9697(15)00342-3 [pii]
LID - 10.1016/j.scitotenv.2015.03.067 [doi]
AB  - In the present study, the residual toxicity and impact of aged nZVI after a 
      leaching experiment on heavy metal (Pb, Zn) polluted soils was evaluated. No 
      negative effects on physico-chemical soil properties were observed after aged 
      nZVI exposure. The application of nZVI to soil produced a significant increase in 
      Fe availability. The impact on soil biodiversity was assessed by fluorescence in 
      situ hybridization (FISH). A significant effect of nZVI application on microbial 
      structure has been recorded in the Pb-polluted soil nZVI-treated. Soil bacteria 
      molecular response, evaluated by RT-qPCR using exposure biomarkers (pykA, katB) 
      showed a decrease in the cellular activity (pykA) due to enhanced intracellular 
      oxidative stress (katB). Moreover, ecotoxicological standardised test on 
      Caenorhabditis elegans (C. elegans) showed a decrease in the growth endpoint in 
      the Pb-polluted soil, and particularly in the nZVI-treated. A different pattern 
      has been observed in Zn-polluted soils: no changes in soil biodiversity, an 
      increase in biological activity and a significant decrease of Zn toxicity on C. 
      elegans growth were observed after aged nZVI exposure. The results reported 
      indicated that the pollutant and its nZVI interaction should be considered to 
      design soil nanoremediation strategies to immobilise heavy metals.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - Fajardo, C
AU  - Fajardo C
AD  - Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain. Electronic 
      address: carmen.fajardo@vet.ucm.es.
FAU - Gil-Diaz, M
AU  - Gil-Diaz M
AD  - IMIDRA, Instituto Madrileno de Investigacion y Desarrollo Rural Agrario y 
      Alimentacion, Finca "El Encin", A-2, Km 38,2, 28800 Alcala de Henares, Madrid, 
      Spain. Electronic address: mar.gil.diaz@madrid.org.
FAU - Costa, G
AU  - Costa G
AD  - Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain. Electronic 
      address: costag@vet.ucm.es.
FAU - Alonso, J
AU  - Alonso J
AD  - IMIDRA, Instituto Madrileno de Investigacion y Desarrollo Rural Agrario y 
      Alimentacion, Finca "El Encin", A-2, Km 38,2, 28800 Alcala de Henares, Madrid, 
      Spain. Electronic address: juan.alonso.canto@madrid.org.
FAU - Guerrero, A M
AU  - Guerrero AM
AD  - IMIDRA, Instituto Madrileno de Investigacion y Desarrollo Rural Agrario y 
      Alimentacion, Finca "El Encin", A-2, Km 38,2, 28800 Alcala de Henares, Madrid, 
      Spain. Electronic address: amaria.guerrero@madrid.org.
FAU - Nande, M
AU  - Nande M
AD  - Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain. Electronic 
      address: mnande@vet.ucm.es.
FAU - Lobo, M C
AU  - Lobo MC
AD  - IMIDRA, Instituto Madrileno de Investigacion y Desarrollo Rural Agrario y 
      Alimentacion, Finca "El Encin", A-2, Km 38,2, 28800 Alcala de Henares, Madrid, 
      Spain. Electronic address: carmen.lobo@madrid.org.
FAU - Martin, M
AU  - Martin M
AD  - Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain. Electronic 
      address: margamar@vet.ucm.es.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150408
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Metals, Heavy)
RN  - 0 (Soil Pollutants)
RN  - E1UOL152H7 (Iron)
SB  - IM
MH  - Animals
MH  - Caenorhabditis elegans
MH  - Environmental Monitoring
MH  - Environmental Restoration and Remediation/*methods
MH  - Iron
MH  - Metal Nanoparticles/*analysis/toxicity
MH  - Metals, Heavy/analysis/chemistry
MH  - Soil Microbiology
MH  - Soil Pollutants/*analysis/chemistry/toxicity
OTO - NOTNLM
OT  - Aged nZVI
OT  - Biological impact
OT  - Nanoremediation
OT  - Pb
OT  - Soil
OT  - Toxicity
OT  - Zn
EDAT- 2015/04/13 06:00
MHDA- 2016/04/30 06:00
CRDT- 2015/04/13 06:00
PHST- 2014/10/14 00:00 [received]
PHST- 2015/02/27 00:00 [revised]
PHST- 2015/03/16 00:00 [accepted]
PHST- 2015/04/13 06:00 [entrez]
PHST- 2015/04/13 06:00 [pubmed]
PHST- 2016/04/30 06:00 [medline]
AID - S0048-9697(15)00342-3 [pii]
AID - 10.1016/j.scitotenv.2015.03.067 [doi]
PST - ppublish
SO  - Sci Total Environ. 2015 Dec 1;535:79-84. doi: 10.1016/j.scitotenv.2015.03.067. 
      Epub 2015 Apr 8.