Consumer-based actions to reduce plastic pollution in rivers: A multi-criteria decision analysis approach

PLoS One. 2020 Aug 14;15(8):e0236410. doi: 10.1371/journal.pone.0236410. eCollection 2020.

Abstract

The use and management of single use plastics is a major area of concern for the public, regulatory and business worlds. Focusing on the most commonly occurring consumer plastic items present in European freshwater environments, we identified and evaluated consumer-based actions with respect to their direct or indirect potential to reduce macroplastic pollution in freshwater environments. As the main end users of these items, concerned consumers are faced with a bewildering array of choices to reduce their plastics footprint, notably through recycling or using reusable items. Using a Multi-Criteria Decision Analysis approach, we explored the effectiveness of 27 plastic reduction actions with respect to their feasibility, economic impacts, environmental impacts, unintended social/environmental impacts, potential scale of change and evidence of impact. The top ranked consumer-based actions were identified as: using wooden or reusable cutlery; switching to reusable water bottles; using wooden or reusable stirrers; using plastic free cotton-buds; and using refill detergent/ shampoo bottles. We examined the feasibility of top-ranked actions using a SWOT analysis (Strengths, Weaknesses, Opportunities and Threats) to explore the complexities inherent in their implementation for consumers, businesses, and government to reduce the presence of plastic in the environment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Consumer Behavior
  • Decision Support Techniques
  • Environmental Monitoring*
  • Environmental Pollution
  • Humans
  • Plastics / chemistry
  • Plastics / toxicity*
  • Recycling
  • Rivers / chemistry*
  • Waste Products / analysis
  • Water Pollutants, Chemical / chemistry
  • Water Pollutants, Chemical / toxicity*

Substances

  • Plastics
  • Waste Products
  • Water Pollutants, Chemical

Grants and funding

Lucy Anderson and Steve Rocliffe have been working on (the research underpinning, as per the respective roles indicated in our original submission) this manuscript as external consultants paid by Earthwatch Europe. This commercial relationship does not alter our adherence to PLOS ONE policies on sharing data and materials. Earthwatch Europe (in particular the co-authors Debbie Winton, Steven Loiselle and Luca Marazzi) played a role in the study design, data collection and analysis, decision to publish, and preparation of the manuscript. No external funding was received to conduct this study.