Results 1 to 10 of about 5,020 (178)

Chlorinated Diphenyl Ethers in Sediments, Biota, and the Water Column from Coastal British Columbia, Canada [PDF]

open access: goldNature Precedings, 2007
AbstractPolychlorinated diphenyl ethers (PCDEs) are impurities in technical chlorophenol mixtures, are used as dielectric fluids in capacitors and as herbicides, antiseptics, food preservatives, and papers and textiles, and can be formed through the chlorination of organics in water and wastewater streams.
Sierra Rayne   +2 more
  +7 more sources

Geospatial analysis of the patterns of chemical exposures among biota in the Canadian Oil Sands Region.

open access: goldPLoS ONE, 2020
Understanding the patterns of chemical exposure among biota across a landscape is challenging due to the spatial heterogeneity and complexity of the sources, pathways, and fate of the different chemicals.
Kristin M Eccles   +2 more
doaj   +4 more sources

The role of symbiosis in the first colonization of the seafloor by macrobiota: Insights from the oldest Ediacaran biota (Newfoundland, Canada)

open access: hybridBiosystems, 2021
The earliest record of animal life comes from the Ediacaran of Newfoundland, including dm scale fossil organisms, most of which are inferred to have been epibenthic immotile eumetazoans. This work introduces the palaeobiology of the major fossil groups in the Newfoundland assemblages including strange fractal-like taxa and addresses some of ...
Duncan McIlroy   +3 more
openaire   +4 more sources

Legacy DDT and its metabolites in Brook Trout from lakes within forested watersheds treated with aerial applications of insecticides. [PDF]

open access: yesPLoS ONE
To manage defoliation from insect outbreaks, about half of the forested land in New Brunswick, Canada, was treated with dichlorodiphenyltrichloroethane (DDT) between 1952 and 1968. Aerial applications of DDT have thus likely increased the risk of chronic
Joshua Kurek   +4 more
doaj   +2 more sources

Response of Lacustrine Biota to Late Holocene Climate and Environmental Conditions in Northernmost Ungava (Canada)

open access: bronzeARCTIC, 2015
Sediment cores from three lakes located in the northernmost region of Ungava, Quebec (Canada) were examined to define aquatic community and ecosystem variability during the Late Holocene period. A chironomid-based transfer function was used to reconstruct August air temperature trends, and lacustrine primary production was inferred from sedimentary ...
Irene Gregory-Eaves   +3 more
openaire   +4 more sources

The stratigraphic relationship between the Shuram carbon isotope excursion, the oxygenation of Neoproterozoic oceans, and the first appearance of the Ediacara biota and bilaterian trace fossils in northwestern Canada [PDF]

open access: greenChemical Geology, 2013
Abstract A mechanistic understanding of relationships between global glaciation, a putative second rise in atmospheric oxygen, the Shuram carbon isotope excursion, and the appearance of Ediacaran-type fossil impressions and bioturbation is dependent on the construction of accurate geological records through regional stratigraphic correlations.
Macdonald, F.   +8 more
openaire   +4 more sources

Microplastics in the digestive tract of Gryllus pennsylvanicus crickets in a biosolid – treated agricultural field [PDF]

open access: yesScientific Reports
Microplastic ubiquity, its general toxicology, and its suitability for ingestion by biota are leading ecological and human health concerns. Microplastics are abundant in terrestrial environments including agricultural settings where municipal biosolids ...
Emily R. McColville   +6 more
doaj   +2 more sources

Oil spill response planning in Pacific Canada: A tool for identifying vulnerable marine biota

open access: hybridMarine Policy, 2023
Sharon Jeffery   +3 more
openaire   +2 more sources

Proposal of novel Predicted No Effect Concentrations (PNEC) for metals in freshwater using Species Sensitivity Distribution for different taxonomic groups [PDF]

open access: yesScientific Reports
Water pollution by metals and metalloids promotes toxic effects to aquatic biota especially in mining regions. Environmental legislation applied to protect aquatic life from the toxicity of metals relies on the definition of protective values (PVs) for ...
Gisele Alves Miranda   +5 more
doaj   +2 more sources

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