Contaminant characterization in wetland media surrounding a pulp mill industrial effluent treatment facility
نویسندگان
چکیده
Abstract Three media (sediment, surface water, and dragonfly larvae tissue) were collected from wetlands surrounding an industrial effluent treatment facility prior to closure. Samples analyzed for metals, total mercury, polychlorinated dibenzo- p -dioxins/polychlorinated dibenzofurans (PCDD/PCDF) concentrations. Sediment water concentrations compared provincial federal guidelines, as well reference wetland Exceedances of arsenic, cadmium, chromium, copper, zinc, PCDD/PCDF guidelines found in deeper areas historically contaminated effluent, exposed current inputs. Composite Libellulidae samples wetlands, comparisons made tissue + 20%. Elevated As, Cu Pb measured at two site but mercury (THg) higher than near the facility. Spearman rho tests identified a significant correlation between sediment THg Results suggest relatively low ecological risk macroinvertebrates within inputs, highlight strengths weaknesses guidelines.
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ژورنال
عنوان ژورنال: Wetlands Ecology and Management
سال: 2021
ISSN: ['0923-4861', '1572-9834']
DOI: https://doi.org/10.1007/s11273-020-09779-0