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Why Scalable Water Intelligence Requires Field Methods: The Limitations of Centralized Laboratories
Summary
Researchers argue that centralized laboratory workflows are structurally ill-suited for routine, geographically dense water quality monitoring, and present a smartphone-based biodegradable-reagent assay platform as a practical field-first alternative capable of detecting microplastics and nanoplastics at household and community scale.
Centralized laboratories can give information on polymer characterization. However, they are structurally insufficient for the scale, speed, and geographic density required for routine, repeated water quality monitoring across households, schools, communities, utilities, NGOs, and remote environments. This is especially true for emerging contaminants such as microplastics and nanoplastics, where workflows are expensive, infrastructure and instrument-heavy, require expert researchers, low-throughput (days-weeks for 1 sample), and logistically challenging. Scalable environmental intelligence demands field-first tools that enable rapid screening, frequent repeat testing, and distributed data generation. The EcoExposure smartphone-based optical assay platform (biodegradable reagent + app) demonstrates one practical implementation of this field-oriented approach. Field methods should be viewed as the best method to accomplish policy goals of water monitoring for all people in urban and rural / remote areas alike..