Article
?
AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button.
Tier 2
?
Original research — experimental, observational, or case-control study. Direct primary evidence.
Environmental Sources
Sign in to save
A baseline study of microplastic pollution in a Southern Indian Estuary
Marine Pollution Bulletin2022
56 citations
?
Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 45
?
0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Vishnu Unnikrishnan,
K. Amrutha,
K. Amrutha,
Gokul Valsan,
K. Amrutha,
K. Amrutha,
Thara Chandran,
Gokul Valsan,
Vishnu Unnikrishnan,
Rizwan Khaleel,
Rizwan Khaleel,
Rizwan Khaleel,
Rizwan Khaleel,
Rizwan Khaleel,
Rizwan Khaleel,
Rizwan Khaleel,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Gokul Valsan,
Gokul Valsan,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
S.R. Reshma,
K. Amrutha,
Gokul Valsan,
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
K. Amrutha,
Rizwan Khaleel,
Vishnu Unnikrishnan,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Gokul Valsan,
Vishnu Unnikrishnan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
K. Amrutha,
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Gokul Valsan,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Nelson Rangel-Buitrago,
Rizwan Khaleel,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
K. Amrutha,
Anish Kumar Warrier
Anish Kumar Warrier
Gokul Valsan,
Anish Kumar Warrier
Nelson Rangel-Buitrago,
Joju George Sebastian,
Joju George Sebastian,
Nelson Rangel-Buitrago,
Rizwan Khaleel,
Rizwan Khaleel,
Joju George Sebastian,
Anish Kumar Warrier
Nelson Rangel-Buitrago,
Gokul Valsan,
Gokul Valsan,
Gokul Valsan,
Nelson Rangel-Buitrago,
Thara Chandran,
Nelson Rangel-Buitrago,
Gokul Valsan,
Nelson Rangel-Buitrago,
Gokul Valsan,
Nelson Rangel-Buitrago,
Anish Kumar Warrier
Nelson Rangel-Buitrago,
Rizwan Khaleel,
Gokul Valsan,
Gokul Valsan,
Nelson Rangel-Buitrago,
Rizwan Khaleel,
Rizwan Khaleel,
Thara Chandran,
Anish Kumar Warrier
Thara Chandran,
Anish Kumar Warrier
Anish Kumar Warrier
Nelson Rangel-Buitrago,
Gokul Valsan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Thara Chandran,
Rizwan Khaleel,
Anish Kumar Warrier
S.R. Reshma,
Nelson Rangel-Buitrago,
S.R. Reshma,
Anish Kumar Warrier
Nelson Rangel-Buitrago,
Vishnu Unnikrishnan,
Vishnu Unnikrishnan,
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Anish Kumar Warrier
Summary
This baseline study characterized microplastic distribution across surface, middle, and bottom water layers of the Udyavara River Estuary in southwest India, finding that concentrations varied by depth and season. The vertical distribution data improve understanding of how estuarine hydrodynamics influence microplastic accumulation and exposure risks to benthic organisms.
Knowledge on the processes controlling the vertical distribution of microplastics (MPs) in estuaries is less. This research was carried out to determine the MP distribution in the surface, middle, and bottom layers of the Udyavara River Estuary in southwest India. The mean (± standard deviation) concentrations were 320.83 (± 98.30), 514.55 (± 352.16), and 755.03 (± 400.96) particles/m, respectively. Fibres, films, and fragments dominated, and 57 % of the MPs had a size range of 0.3-1 mm, while 43 % had a size of 1-5 mm. The main polymers were high-density polyethylene and polyethylene terephthalate. A positive correlation (r = 0.421, p = 0.0205, n = 30) exists between the MPs and salinity, suggesting that the MPs are held by dense saline waters. The mean pollution load index value was 2.25 indicating severe pollution. Microplastic pollution is due to harbour, fishing, industrial activities, the effects of southwest monsoon rain, and tidal currents.