TY - JOUR
T1 - The influence of engineered Fe2O3 nanoparticles and soluble (FeCl3) iron on the developmental toxicity caused by CO2-induced seawater acidification
AU - Kadar, E
AU - Simmance, F
AU - Martin, O
AU - Voulvoulis, N
AU - Widdicombe, S
AU - Mitov, S
AU - Lead, Jamie
AU - Readman, JW
PY - 2010/12/1
Y1 - 2010/12/1
N2 - An embryo development assay using a common test organism, the edible mussel (Mytilus galloprovincialis), exposed to both Fe2O3 nanoparticles and soluble FeCl3 at 3 acidic pHs, has provided evidence for the following: (1) CO2 enriched seawater adjusted to pH projections for carbon capture leakage scenarios (CCS) significantly impaired embryo development; (2) under natural pH conditions, no significant effect was detected following exposure of embryos to Fe, no matter if in nano- or soluble form: (3) at pH of natural seawater nano-Fe particles aggregate into large, polydisperse and porous particles, with no biological impact detected; (4) at pH 6 and 7, such aggregates may moderate the damage associated with CO2 enrichment as indicated by an increased prevalence of normal D-shell larvae when nano-Fe was present in the seawater at pH 7, while soluble iron benefited embryo development at pH 6, and (5) the observed effects of iron on pH-induced development toxicity were concentration dependent. (C) 2010 Elsevier Ltd. All rights reserved.
AB - An embryo development assay using a common test organism, the edible mussel (Mytilus galloprovincialis), exposed to both Fe2O3 nanoparticles and soluble FeCl3 at 3 acidic pHs, has provided evidence for the following: (1) CO2 enriched seawater adjusted to pH projections for carbon capture leakage scenarios (CCS) significantly impaired embryo development; (2) under natural pH conditions, no significant effect was detected following exposure of embryos to Fe, no matter if in nano- or soluble form: (3) at pH of natural seawater nano-Fe particles aggregate into large, polydisperse and porous particles, with no biological impact detected; (4) at pH 6 and 7, such aggregates may moderate the damage associated with CO2 enrichment as indicated by an increased prevalence of normal D-shell larvae when nano-Fe was present in the seawater at pH 7, while soluble iron benefited embryo development at pH 6, and (5) the observed effects of iron on pH-induced development toxicity were concentration dependent. (C) 2010 Elsevier Ltd. All rights reserved.
KW - Carbon capture and storage
KW - Nanotoxicology
KW - Iron
KW - D-shell larvae
KW - pH
U2 - 10.1016/j.envpol.2010.03.025
DO - 10.1016/j.envpol.2010.03.025
M3 - Article
C2 - 20430496
VL - 158
SP - 3490
EP - 3497
JO - Environmental Pollution
JF - Environmental Pollution
IS - 12
ER -