Particle-size dependent accumulation and trophic transfer of cerium oxide through a terrestrial food chain
J Hawthorne, R De la Torre Roche, B Xing… - … science & technology, 2014 - ACS Publications
The accumulation and trophic transfer of nanoparticle (NP) or bulk CeO2 through a
terrestrial food chain was evaluated. Zucchini (Cucurbita pepo L.) was planted in soil with 0
or 1228 μg/g bulk or NP CeO2. After 28 d, zucchini tissue Ce content was determined by ICP-
MS. Leaf tissue from each treatment was used to feed crickets (Acheta domesticus). After 14
d, crickets were analyzed for Ce content or were fed to wolf spiders (family Lycosidae). NP
CeO2 significantly suppressed flower mass relative to control and bulk treatments. The Ce …
terrestrial food chain was evaluated. Zucchini (Cucurbita pepo L.) was planted in soil with 0
or 1228 μg/g bulk or NP CeO2. After 28 d, zucchini tissue Ce content was determined by ICP-
MS. Leaf tissue from each treatment was used to feed crickets (Acheta domesticus). After 14
d, crickets were analyzed for Ce content or were fed to wolf spiders (family Lycosidae). NP
CeO2 significantly suppressed flower mass relative to control and bulk treatments. The Ce …