TY - JOUR
T1 - Risk assessment and spatio-temporal distribution of dissolved trace metals in Swarna, Sharavati and Kali estuaries, South-West Coast of India
AU - Nishitha, D’Souza S.
AU - Sudheer, Athiyarath Krishnan
AU - Arun, Kumar
AU - Amrish, Vadakkeveedu Narayan
AU - Mahesh, Gaddam
AU - Udayashankar, Harikripa Narayana
AU - Balakrishna, Keshava
N1 - Funding Information:
The first author (NDS) and corresponding author (KB) thank the Ministry of Earth Sciences, Government of India for providing the research fellowship and funding support to implement this work through its research project. Two anonymous reviewers are thanked for valuable suggestions to improvise the manuscript.
Publisher Copyright:
© 2022, The Author(s).
PY - 2023/1
Y1 - 2023/1
N2 - Trace metals act as a limiting nutrient and prerequisite for primary productivity in marine environments. The distribution of metals in dissolved phase along the salinity gradients of Swarna, Sharavati and Kali estuaries in southwestern India, during post and pre-monsoon seasons, were studied. We have investigated the behaviour of trace metals in the estuarine environment and their extent of impact on human health and ecosystem. The study revealed, non-conservative behaviour of dissolved Mn, Fe, Ni, Cd and Co in the estuaries. Whereas Cu behaved non-conservatively in post-monsoon and conservatively in pre-monsoon seasons. Risk assessment studies revealed that higher chronic daily intake (CDI) in humans, through dermal pathway, in Swarna and Sharavati estuaries during post-monsoon, whereas it was during pre-monsoon season in the Kali estuary. Hazard Index values for the studied metals in adults and children are below risk thresholds, though children are more prone to health risk through the dermal pathway.
AB - Trace metals act as a limiting nutrient and prerequisite for primary productivity in marine environments. The distribution of metals in dissolved phase along the salinity gradients of Swarna, Sharavati and Kali estuaries in southwestern India, during post and pre-monsoon seasons, were studied. We have investigated the behaviour of trace metals in the estuarine environment and their extent of impact on human health and ecosystem. The study revealed, non-conservative behaviour of dissolved Mn, Fe, Ni, Cd and Co in the estuaries. Whereas Cu behaved non-conservatively in post-monsoon and conservatively in pre-monsoon seasons. Risk assessment studies revealed that higher chronic daily intake (CDI) in humans, through dermal pathway, in Swarna and Sharavati estuaries during post-monsoon, whereas it was during pre-monsoon season in the Kali estuary. Hazard Index values for the studied metals in adults and children are below risk thresholds, though children are more prone to health risk through the dermal pathway.
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U2 - 10.1007/s11356-022-22812-4
DO - 10.1007/s11356-022-22812-4
M3 - Article
C2 - 36066797
AN - SCOPUS:85137517347
SN - 0944-1344
VL - 30
SP - 9914
EP - 9931
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 4
ER -
