Affiliations: Microbiology and Biotechnology, Department of
Biosciences, Mangalore University, Mangalagangotri, Mangalore 574 199,
Karnataka, India | 1Food Technology Division, School of Industrial
Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
Abstract: This study deals with accumulation of plastic debris on five sandy
beaches of the southwest coast of India. Sand from five quadrats (1 m^2) of mid
and hind dunes at each beach was assessed for the accumulation of plastic
debris. Plastics were sorted, enumerated, weighed and classified based on their
use (food, fishing, domestic and miscellaneous). Qualitative and quantitative
variations in plastic debris were recorded between the mid and hind dunes.
Quantity of plastic debris was more on mid dunes, while the number on hind
dunes. Quantity and number of plastic debris between hind and mid dunes did not
differ significantly. A total of 22 types of plastic debris were recovered in
the quadrats, while visual observation revealed 15 additional types on beaches.
Low-density polyethylene and polystyrene were most common on beaches.
Accumulation of food-based plastic debris was highest (43%), followed by
domestic (28%), fishing (18%) and others (11%). This study revealed that the
beaches of southwest coast of India mainly consist of plastics used for food
and fishing purposes. As most of the debris accumulated is of local origin, its
prevention can be achieved by public education and employing safe disposal
practices.
