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@article{2339443,
author = {Ndhlovu, Aldwin and Human, Lucienne R. D. and Adams, Janine B. and Rishworth, Gavin M. and Olisah, Chijioke and Bornman, Thomas G.},
article_location = {Oxford},
article_number = {October 2023},
doi = {http://dx.doi.org/10.1016/j.marpolbul.2023.115572},
keywords = {Biomonitoring; Contamination; Kromme Estuary; Gamtoos Estuary; Pollution indices},
language = {eng},
issn = {0025-326X},
journal = {Marine Pollution Bulletin},
title = {Ecological risk assessment of metal pollutants in two agriculturally impacted estuaries},
url = {https://www.sciencedirect.com/science/article/pii/S0025326X2301007X?via%3Dihub},
volume = {195},
year = {2023}
}
TY - JOUR
ID - 2339443
AU - Ndhlovu, Aldwin - Human, Lucienne R. D. - Adams, Janine B. - Rishworth, Gavin M. - Olisah, Chijioke - Bornman, Thomas G.
PY - 2023
TI - Ecological risk assessment of metal pollutants in two agriculturally impacted estuaries
JF - Marine Pollution Bulletin
VL - 195
IS - October 2023
SP - 1-12
EP - 1-12
PB - Pergamon-Elsevier Science Ltd
SN - 0025326X
KW - Biomonitoring
KW - Contamination
KW - Kromme Estuary
KW - Gamtoos Estuary
KW - Pollution indices
UR - https://www.sciencedirect.com/science/article/pii/S0025326X2301007X?via%3Dihub
N2 - A focused diagnosis of ecosystem health in two South African estuaries (Kromme and Gamtoos) was conducted. Four pollution indices were used, i.e., geoaccumulation (Igeo), ecological risk (RI), contamination factor (CF) and pollution load index (PLI), to assess toxicity levels of metal contaminants in relation to background values. The Igeo results (11.1 %) can be classified as contaminated, with Cd, the only element with high values in both estuaries. Likely sources (herbicides, pesticides) of Cd are used in the agricultural dominated catchments. There was a high concentration of Mn (13.4 +/- 2.51 and 12.3 +/- 1.13 mu g & sdot;g(-1)) and Fe (1289 +/- 243 and 1291 +/- 130 mu g & sdot;g(-1)) at site 4 for Gamtoos and Kromme estuary respectively compared to the other metal elements. Although results indicate low metal contamination, with increasing global anthropogenic pressure, continuous monitoring should be prioritised to assist in managing estuarine systems that support a wide range of socio-economic and ecosystem services.
ER -
NDHLOVU, Aldwin, Lucienne R. D. HUMAN, Janine B. ADAMS, Gavin M. RISHWORTH, Chijioke OLISAH and Thomas G. BORNMAN. Ecological risk assessment of metal pollutants in two agriculturally impacted estuaries. \textit{Marine Pollution Bulletin}. Oxford: Pergamon-Elsevier Science Ltd, 2023, vol.~195, October 2023, p.~1-12. ISSN~0025-326X. Available from: https://dx.doi.org/10.1016/j.marpolbul.2023.115572.
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