Spatial and temporal distribution of heavy metal concentrations in mussels (Mytilus edulis) from the Baie des Chaleurs, New Brunswick, Canada

In order to know the characteristic of spatial and temporal distribution of heavy metal concentrations in urban stormwater runoff, rainfall runoff from impervious underlying surfaces in urban region was observed during rain events. Results showed that during the precipitation process, heavy metal concentrations decreased gradually temporally (except Cd); concentrations of Fe, Cu and Zn meet Class III standard of Environmental Quality Standards for Surface Water in terminal runoff, but concentrations of Cd and Pb go beyond this standard far. Heavy metal concentrations in runoff from different types of landuses were significantly different. The arithmetic average concentrations of Fe, Cd, Cu and Zn in stormwater runoff from roof (e.g.,34.4mg/L, 0.15mg/L, 1.25mg/L and 1.23mg/L, respectively) were obviously higher than that in stormwater runoff from road (e.g., 11.8mg/L, 0.05mg/L, 0.13mg/L and 0.69mg/L, respectively).

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Spatial and temporal distribution of heavy metal concentrations and enrichment in the southern Gulf of Mexico

The Science of The Total Environment ◽

10.1016/j.scitotenv.2018.10.109 ◽

2019 ◽

Vol 651 ◽

pp. 3174-3186 ◽

Cited By ~ 18

Author(s):

A.C. Ruiz-Fernández ◽

J.A. Sanchez-Cabeza ◽

L.H. Pérez-Bernal ◽

A. Gracia

Keyword(s):

Heavy Metal ◽

Gulf Of Mexico ◽

Temporal Distribution ◽

Spatial And Temporal Distribution ◽

Metal Concentrations ◽

Heavy Metal Concentrations ◽

Southern Gulf Of Mexico

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Heavy metals and 137Cs levels in macrophytes and temporal distribution in sediments – application for estuarine environment status assessment (Vistula Lagoon – southern Baltic)

Oceanological and Hydrobiological Studies ◽

10.1515/ohs-2020-0007 ◽

2020 ◽

Vol 49 (1) ◽

pp. 68-80

Author(s):

Tamara Zalewska ◽

Paulina Brzeska-Roszczyk ◽

Beata Danowska ◽

Mariusz Pełechaty

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Stable State ◽

Temporal Distribution ◽

Abundant Species ◽

Vistula Lagoon ◽

Metal Concentrations ◽

Heavy Metal Concentrations ◽

Status Assessment ◽

The Vistula Lagoon

AbstractThe paper presents the first data on the concentrations of heavy metals (Cd, Pb, Zn, Cu, Ni, Cr, Mn) and 137Cs and their contamination ratios (CR) in the most abundant species of macrophytes in the Vistula Lagoon. No significant differences in the concentrations of heavy metals and 137Cs between macrophyte taxa or the influence of rivers flowing into the Vistula Lagoon on heavy metal concentrations in the area were found. The concentrations of heavy metals in macrophyte taxa varied in the following ranges: Cd – 0.1–0.7 mg kg−1 d.w.; Pb – 0.5–5.0 mg kg-1 d.w.; Zn – 29–390 mg kg-1 d.w.; Cu – 2.5–8.3 mg kg-1 d.w.; Ni – 0.4–6.8 mg kg−1 d.w.; Cr – 0.5–2.8 mg kg−1 d.w.; Mn – 380–8500 mg kg−1 d.w. Since the 1990s, a decline or stable state of heavy metal concentrations in bottom sediments has been observed, reflecting changes in the environment of the Vistula Lagoon. The linear sedimentation rate in the Vistula Lagoon was 3.3 mm y−1. The results presented in the paper can serve as a baseline for assessing changes in the environmental status of the Vistula Lagoon, which may occur as a result of future investments, including building a new navigable canal through the Vistula Spit.

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