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B56-12 Microplastics Knowledge, Attitudes, and Practices Among University Students
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Microplastics — tiny plastic bits now found in human blood, lungs, and even artery plaque (where they've been linked to a much higher risk of heart attack and stroke) — are a growing health concern, but this study found that even college students who know a lot about the issue don't necessarily change their habits because of it. Researchers surveyed University of Florida students and found that while people understood microplastics are harmful and worried about them, that concern rarely translated into actions like avoiding plastic products, especially when it cost more money. This gap between knowing and doing suggests that simply informing people about microplastics isn't enough — real change may require easier, che
Abstract Rationale Microplastics are synthetic polymer particles smaller than 5 mm that are widespread across ecosystems. They have been found in human blood, lungs, placentas, and arterial plaques. 80% of healthy adults tested had detectable levels in their blood, and recent data link their presence in arterial plaques to a 4.5-fold higher risk of heart attack, stroke, or death within three years. Despite this, public awareness remains low. To date, no studies have evaluated university students in major consumer economies such as the United States. Addressing this gap is urgent given the scale of plastic production and the role of young adults in shaping consumption patterns and policy. We conducted this study to assess the knowledge, attitudes, and practices (KAP) of University of Florida students toward microplastics. Methods Undergraduate and graduate students at University of Florida were invited to complete a rigorously validated 43-item questionnaire assessing knowledge, attitudes, and practices regarding microplastics. The questionnaire consisted of 14 knowledge, 14 attitude, and 15 practice items. Knowledge items were summarized as the percentages of different responses. Attitude and practice items, rated on 4-point Likert scales, were analyzed using mean scores and standard deviations. Results A total of 146 participants completed the questionnaire. In the knowledge section, the mean proportion of correct responses was 72%, while 22% of answers were “I don’t know.” The lowest level of knowledge was observed for the question on microplastic transfer through skin contact, with only 34% answering correctly. Attitudes toward microplastics were mostly positive. The mean agreement score was 3.43 ± 0.24 (out of 4), with an average of 92% of participants agreeing or strongly agreeing with the statements. Notably, all respondents (100%) agreed that microplastics are problematic for both humans and wildlife. Reported practices related to microplastics were moderate. The mean practice score was 2.55 ± 0.53 (out of 4), and on average only 54% of participants reported often or always engaging in behaviors to limit microplastics. The highest adherence (88%) was observed for using ceramic, steel, or glass cups instead of disposable paper or plastic ones, while the lowest (20%) was for willingness to pay extra for plastic-free products. Conclusion Our results suggest a clear gap between participants’ awareness and behavior regarding microplastics. Participants usually understand and express concern about microplastics, yet this awareness does not consistently translate into behavioral change. Bridging this gap is the key to develop effective health and environmental strategies. This abstract is funded by: None
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