Elsevier

Marine Pollution Bulletin

Volume 158, September 2020, 111410
Marine Pollution Bulletin

Baseline
A baseline study on elemental concentration and potential ecological risk status of the surface sediments of Ashtamudi Lake, south west coast of India

https://doi.org/10.1016/j.marpolbul.2020.111410Get rights and content

Abstract

Element concentration (Fe, Mn, Pb, Zn, Cu, Cr, Ni and Co) in the surface sediments of Ashtamudi estuary, Southwest coast of India, has been analyzed to understand the spatial variation and potential ecological risk status. The sediment pollution index and Potential Ecological Risk index suggest that the northeastern part of the estuary exhibits low to moderate polluted sediments with moderate ecological risk. The results of correlation analysis indicate that the natural weathering process and river input play an important role in the distribution of the elements in the surface sediments of the estuary. The extracted factor results indicate that the fine sediment fractions supporting for accumulation of the trace elements, whereas the enriched level of Fe and Mn is chiefly controlled by the riverine process, and other elements are contributed by anthropogenic influences.

Section snippets

CRediT authorship contribution statement

S.M. Hussain:Conceptualization, Resources.S. Anbalagan:Methodology, Visualization.K. Suresh Kumar:Methodology, Visualization.K. Neelavannan:Methodology, Visualization.D. Pradhap:Investigation, Data curation.K. Radhakrishnan:Investigation, Data curation.Prince S. Godson:Writing - review & editing.S. Krishnakumar:Writing - original draft.

Declaration of competing interest

The submitted article entitled “A baseline study on elemental concentration and potential ecological risk status of the surface sediments, Ashtamudi Lake, South west coast of India” has not been published previously and it is not under consideration for publication elsewhere that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English

Acknowledgement

The authors thank Dr. P.Saravanan, Assistant Professor, Department of Geology, University of Madras, Chennai -600025, Tamil Nadu, India, for his extensive support in sediment geochemical analysis. The corresponding author especially thanks the Department of Science and Technology (DST), Science and Engineering Research Board (SERB), New Delhi, India for providing financial support through the National Postdoctoral Fellowship Scheme (Ref. No PDF/2017/000030 & 14th Nov 2017).

References (35)

Cited by (13)

  • Occurrence, distribution and sources of phthalates and petroleum hydrocarbons in tropical estuarine sediments (Mandovi and Ashtamudi) of western Peninsular India

    2022, Environmental Research
    Citation Excerpt :

    Furthermore, the impact of total organic carbon (TOC) on the accumulation of different organic contaminants in the sediments was also examined from the estuaries. Previous investigations from both the study sites have focussed on metal contamination and OM source characterisation (Harji et al., 2008; Veerasingam et al., 2015a; Ankit et al., 2017; Mishra et al., 2019; Hussain et al., 2020; Bulbul et al., 2021); however no systematic study has been conducted on occurrence and spatial distribution of phthalate esters from both the estuaries. The assessment of pollution status of the estuaries will result in building management strategies as well as monitoring techniques for maintaining the ecosystem health.

  • Accumulation potential of heavy metals at different growth stages of Pacific white leg shrimp, Penaeus vannamei farmed along the Southeast coast of Peninsular India: A report on ecotoxicology and human health risk assessment

    2022, Environmental Research
    Citation Excerpt :

    According to the Hakanson classification, all the sediment samples are under the low potential ecological risk category (Tables S13 and S8). Hussain et al. (2020) and Sachithanandam et al. (2020) reported low to moderate ecological risk at Astamudi Lake and Andaman Island (South India), which was much higher than that reported in the current study. This could be attributed to the toxic heavy metal concentration in the sediments (Cd, As, and Hg) and their toxic response factor.

  • Assessment of water quality in a tropical ramsar wetland of southern India in the wake of COVID-19

    2021, Remote Sensing Applications: Society and Environment
    Citation Excerpt :

    The Kallada river system is a confluence of three small tropical rivers such as the Kulathupuzha, the Chendurni and the Kalthuruthy, originates from Western Ghats. The Asthamudi Lake is permanently connected with the Arabian Sea, and the lake water is exchanged daily by tidal fluctuations (Hussain et al., 2020). The lake is one of the leading centres of marine fish production and landings along the Malabar coast (Thresiamma and Nair, 1980) and receives significant attention due to its rich and varied fishery resources and an annual production of 23000 t of fish (Kurup and Thomas 2001).

View all citing articles on Scopus
View full text