Using Citizen Science for Water Quality Monitoring: Preaching the Message Beyond the Choir

Abstract:

Citizen science has emerged a means for augmenting the scope of research while educating the community. Environmental research has a particularly strong motivation for engagement, given its often-local context. We implemented a citizen science campaign to investigate relationships between land use and dissolved organic matter (DOM) in surface water environments proximal to Vancouver, British Columbia, Canada. Citizen science was intended to increase sampling breadth, and engage the community about human activities and water quality effects. Participants were given a sample kit and a simple sampling protocol; we then used fast and economic absorbance and fluorescence spectrophotometry to determine DOM concentration and composition. Participants, including individuals from over 10 municipalities and community organizations, submitted over 200 samples; these were compared to investigator-led sampling, as well as data mining existing sources, to verify results. Analyzing the fluorescence excitation-emission matrices (EEMs) with a five-component parallel factor (PARAFAC) model showed that samples from watersheds with increased urbanization had unique microbial-like peaks, suggesting variances in DOM lability and origins compared to more pristine watersheds. Community engagement was extended by making data available online in an interactive map, as well as by presenting the project to the public. Despite this, engagement occurred most with community organizations; these participants tended to have scientific training, with a higher knowledge baseline regarding their specific watershed and water quality issues generally. While this served scientific goals, our campaign was less successful at engaging citizens with less-developed scientific backgrounds. In this presentation we will discuss the merits and scientific milestones enabled by citizen science, and lessons learned about how to get beyond ‘preaching to the choir’ in crafting and implementing such projects.