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Detecting the invisible: a conceptual proposal for accessible, at-home microplastic testing for tap and drinking water
Summary
This study presents a conceptual product specification and design for a low-cost, at-home microplastic detection kit for tap and drinking water, intended to bridge the gap between laboratory-based methods and accessible consumer tools. Researchers developed technical requirements for an accessible device that would enable household users to detect microplastic contamination without specialized equipment.
La contaminació per plàstics és cada cop més reconeguda com un problema de salut pública i mediambiental; tanmateix, les tecnologies actuals de detecció de microplàstics (MPs) en l’aigua potable continuen sent en gran mesura inaccessibles per als usuaris en entorns domèstics. Aquest estudi proposa un conjunt d’especificacions de producte i un disseny conceptual per a un kit de detecció de microplàstics de baix cost i ús domèstic, que serveixi de pont entre les metodologies basades en laboratori i la usabilitat domèstica. A partir de la literatura diagnòstica i la teoria del disseny, el projecte planteja l’exposició als MPs com una qüestió sociotècnica que requereix tant rigor científic com una interacció amb l’usuari emocionalment comprensible. Una revisió crítica dels mètodes de detecció existents—including el tenyit per fluorescència, l’espectroscòpia i els kits comercials de laboratori—posa en evidència limitacions importants en termes de cost, complexitat i interpretabilitat per part dels usuaris finals. El projecte va emprar un enfocament de mètodes mixtos, combinant assajos experimentals iteratius de detecció de MPs amb recerca qualitativa amb usuaris (enquestes i entrevistes), per avaluar la viabilitat tècnica i les expectatives d’ús domèstic. Els resultats van demostrar que, tot i que la visualització per fluorescència era perceptivament intuïtiva, els usuaris necessitaven suports interpretatius clars i orientació per avaluar la gravetat de la contaminació. Aquestes conclusions van donar lloc a un conjunt final d’especificacions de producte i una proposta de disseny conceptual, que inclou càpsules de reactiu, filtres optimitzats per contrast, una llanterna UV i instruccions visuals pas a pas.
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