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Extending the theory of planned behaviour to investigate the issue of microplastics in the marine environment
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Researchers extended the theory of planned behaviour to investigate public attitudes toward marine microplastic pollution, finding that environmental awareness and perceived behavioral control significantly predicted consumers' intentions to reduce microplastic-generating product use.
The attention to microplastics and the consequences of its presence in the marine environment is increasing in scientific fields as well as on common media channels. In the absence of regulation in many countries, manufacturers are not required to exclude microplastic from their products, however consumers could force the production in a more sustainable direction with their choices. This study demonstrates the utility of the Theory of Planned Behaviour (TPB) in understanding the publics' intention to avoid buying products which contain microplastics. All three TPB antecedents of intentions are important. The study, based on a sample of respondents in NSW (Australia), also reveals respondents' habitual behaviour of avoiding buying products containing microplastics strongly predicts their intended future behaviour. Last, modelling reveals direct and indirect means through which intentions to avoid buying microplastics can be increased, via increased environmental concerns and public knowledge and health concerns about microplastics.
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Microplastics in personal care products: Exploring public intention of usage by extending the theory of planned behaviour
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Researchers applied an extended theory of planned behavior to understand public attitudes toward using personal care products containing microplastic beads. The study found that environmental awareness, health concerns, and social norms significantly influenced consumers' intentions to reduce their use of products containing microplastics.
Microplastic exposure, public health, and environmental management: insights from behavioural drivers based on the Theory of Planned Behaviour and Health Belief Model
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Researchers interviewed 516 people in Shanghai about their exposure to microplastics and their willingness to reduce use. Using two behavior theories, they found that attitudes, perceived control, social norms, and beliefs about health risks all influenced people's intentions. Most respondents reported frequent exposure to microplastics and recognized them as a health concern.
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Researchers surveyed local tourists in Jeddah, Saudi Arabia to understand what drives intentions to reduce plastic waste on beaches. The study found that awareness of environmental consequences, social norms, and perceived behavioral control all positively influenced intentions to reduce plastic waste. Interestingly, personal attitude alone was not a significant predictor, suggesting that community influence and awareness campaigns may be more effective than individual mindset shifts.
Students’ Attitudes and Perceptions Towards Plastics and Microplastics Pollution: Implications for Vietnam
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This Vietnamese study applied the Theory of Planned Behavior to survey students' attitudes and intentions regarding plastic and microplastic pollution. Attitude was the strongest predictor of pro-environmental behavioral intention (β=0.411), suggesting that awareness and attitude change through education are more effective levers than appeals to subjective norms.
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Researchers designed a survey study using informational nudges and message framing to assess how consumers respond to sustainable laundry products that reduce microfiber emissions, aiming to identify behavioral interventions that can increase adoption of washing bags, filters, and laundry balls to reduce a major source of marine microplastic pollution.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.