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Tamara Galloway Ceri Lewis Blair D. Johnston Francesco Regoli 《Environmental pollution (Barking, Essex : 1987)》2010,158(5):1748-247
The ecotoxicology of manufactured nanoparticles (MNPs) in estuarine environments is not well understood. Here we explore the hypothesis that nanoTiO2 and single walled nanotubes (SWNT) cause sublethal impacts to the infaunal species Arenicola marina (lugworm) exposed through natural sediments. Using a 10 day OECD/ASTM 1990 acute toxicity test, no significant effects were seen for SWNT up to 0.03 g/kg and no uptake of SWNTs into tissues was observed. A significant decrease in casting rate (P = 0.018), increase in cellular damage (P = 0.04) and DNA damage in coelomocytes (P = 0.008) was measured for nanoTiO2, with a preliminary LOEC of 1 g/kg. Coherent anti-stokes Raman scattering microscopy (CARS) located aggregates of TiO2 of >200 nm within the lumen of the gut and adhered to the outer epithelium of the worms, although no visible uptake of particles into tissues was detected. 相似文献
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Shibata Hideaki Galloway James N. Leach Allison M. Cattaneo Lia R. Cattell Noll Laura Erisman Jan Willem Gu Baojing Liang Xia Hayashi Kentaro Ma Lin Dalgaard Tommy Graversgaard Morten Chen Deli Nansai Keisuke Shindo Junko Matsubae Kazuyo Oita Azusa Su Ming-Chien Mishima Shin-Ichiro Bleeker Albert 《Ambio》2017,46(2):129-142
Ambio - Nitrogen (N) management presents a sustainability dilemma: N is strongly linked to energy and food production, but excess reactive N causes environmental pollution. The N footprint is an... 相似文献
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Christopher J. Herrick Erik D. Goodman Charles A. Guthrie Richard H. Blythe Glenn A. Hendrix Richard L. Smith Jim E. Galloway 《Ecological modelling》1982,15(1):1-28
A model for the accumulation of mercury in four compartments of woodland stream has been set up. The four components considered are sediments, detritus, invertebrates and fish. The model inputs are concentrations of dissolved monomethyl mercury and dissolved inorganic mercury (Hg2+) in the water. The model predicts that some reevaluation of current safe mercury concentrations in water may be needed in order to keep mercury concentrations in fish below current actions levels. 相似文献