PMID- 35439596
OWN - NLM
STAT- MEDLINE
DCOM- 20220512
LR  - 20220512
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 305
DP  - 2022 Jul 15
TI  - Seasonal variation, polymer hazard risk and controlling factors of microplastics 
      in beach sediments along the southeast coast of India.
PG  - 119315
LID - S0269-7491(22)00529-2 [pii]
LID - 10.1016/j.envpol.2022.119315 [doi]
AB  - Microplastics (MPs) and its associated organic and inorganic contaminants are one 
      among the significant health hazards to almost all biota, including human. We 
      investigated the polymer hazard risk and its adsorbed contaminants in MPs at six 
      prominent beaches of Chennai on the southeast coast of India. The spatial 
      variation of MPs during the northeast (NE) monsoon (range: 76-720 items/kg, mean: 
      247.4 items/kg) was higher than that during southwest (SW) monsoon (range: 84-498 
      items/kg, mean: 302.7 items/kg). In both the seasons, polyethylene (PE) and 
      polypropylene (PP) were the dominant polymers and fibre was the predominant shape 
      of MPs, likely to be derived from fishing, textile and urban activities in this 
      region. Scanning electron microscope (SEM) images exhibited various surface 
      weathering features including grooves, cracks, fractures, adhering particles, 
      pits, vermiculate textures and fibre reinforcements. Energy dispersive X-ray 
      spectrometer (EDS) results showed that MPs have adsorbed major (Si, Al, Na, Mg, 
      Ca, Fe and Ti) and trace (Cu, Cr, Ni, Pb and Zn) metals. Though pollution load 
      index (PLI) presented low degree of MP contamination in the beach sediments, 
      hazardous polymers such as polyvinyl chloride (PVC), polyamide (PA) and 
      polystyrene (PS) contributed to high polymer hazard index (PHI) and potential 
      ecological risk index (PERI), posing very high risk to the biota. The 
      trajectories obtained from particle-tracking coupled with hydrodynamic simulation 
      clearly showed that 20% of MPs settled along the coast and the remaining moved 
      towards north, alongshore and offshore ( approximately 50 km) within 30 days, and in NE monsoon 
      due to current reversal, the floating debris and MPs have drifted towards south, 
       approximately 40 km in 30 days, indicating the role of circulation in the fate and transport 
      pathways of plastic debris.
CI  - Copyright (c) 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - Ranjani, M
AU  - Ranjani M
AD  - Department of Physics, Annamalai University, Annamalai Nagar, 608 002, Tamil 
      Nadu, India.
FAU - Veerasingam, S
AU  - Veerasingam S
AD  - Environmental Science Center, Qatar University, P.O. Box: 2713, Qatar. Electronic 
      address: v.subramanian@qu.edu.qa.
FAU - Venkatachalapathy, R
AU  - Venkatachalapathy R
AD  - Department of Physics, Annamalai University, Annamalai Nagar, 608 002, Tamil 
      Nadu, India.
FAU - Jinoj, T P S
AU  - Jinoj TPS
AD  - National Centre for Coastal Research, Ministry of Earth Sciences, Government of 
      India, Chennai, 600 100, Tamil Nadu, India.
FAU - Guganathan, L
AU  - Guganathan L
AD  - Department of Physics, Annamalai University, Annamalai Nagar, 608 002, Tamil 
      Nadu, India.
FAU - Mugilarasan, M
AU  - Mugilarasan M
AD  - National Centre for Sustainable Coastal Management, Ministry of Environment, 
      Forest and Climate Change, Chennai, 600 025, Tamil Nadu, India.
FAU - Vethamony, P
AU  - Vethamony P
AD  - Environmental Science Center, Qatar University, P.O. Box: 2713, Qatar.
LA  - eng
PT  - Journal Article
DEP - 20220416
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Microplastics)
RN  - 0 (Plastics)
RN  - 0 (Polymers)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Environmental Monitoring
MH  - Geologic Sediments
MH  - Humans
MH  - India
MH  - *Microplastics
MH  - Plastics
MH  - Polymers
MH  - Seasons
MH  - *Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - Beach sediments
OT  - Chennai coast
OT  - Hydrodynamics
OT  - Microplastics
OT  - Risk assessment
OT  - Seasonal variation
EDAT- 2022/04/20 06:00
MHDA- 2022/05/14 06:00
CRDT- 2022/04/19 20:09
PHST- 2022/01/31 00:00 [received]
PHST- 2022/04/08 00:00 [revised]
PHST- 2022/04/13 00:00 [accepted]
PHST- 2022/04/20 06:00 [pubmed]
PHST- 2022/05/14 06:00 [medline]
PHST- 2022/04/19 20:09 [entrez]
AID - S0269-7491(22)00529-2 [pii]
AID - 10.1016/j.envpol.2022.119315 [doi]
PST - ppublish
SO  - Environ Pollut. 2022 Jul 15;305:119315. doi: 10.1016/j.envpol.2022.119315. Epub 
      2022 Apr 16.