Please use this identifier to cite or link to this item: http://ir.lib.seu.ac.lk/handle/123456789/6029
Title: Are mangrove forests reliable sinks of heavy metals due to phytoremediation and other mechanisms? A Sri Lankan perspective
Authors: Abeywardhana, Dinushi Chamika
Adikaram, Nayana Madurya
AselaKularatne, Ranil Kavindra
Keywords: Mangroves
Sediments
Heavy metals
Phytoremediation
Sri Lanka
Issue Date: 9-Mar-2022
Publisher: Elsevier
Citation: Marine Pollution Bulletin Volume 177, April 2022, 113453
Abstract: We present a viewpoint regarding the prospects in Sri Lanka (a tropical island nation) to depend on mangroves in the remediation of heavy metal laden coastal environments. Sri Lanka has a rich array of lagoons and estuaries (total extent of 1580.17 km2) with ideal brackish water habitats to allow mangrove proliferation and for more restoration works. Furthermore, our estimates of Total Potential Ecological Risk (PER < 150) indicate that ecological risk from metallic contamination of coastal sediments is low, which means mangrove ecosystems would be ideal natural treatment systems for such low polluting environments (but as final cum tertiary treatment systems only). Mangroves are neither metal hyperaccumulators nor good phytoremediators (no ability to take up more than 5000 mg/kg dry weight of a given metal or exhibit a bioconcentration factor ≥ 1000), which means not very effective for high polluting environments.
URI: http://ir.lib.seu.ac.lk/handle/123456789/6029
ISSN: 0025-326X
Appears in Collections:Research Articles

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