ArticlePloS one2019
HABscope: A tool for use by citizen scientists to facilitate early warning of respiratory irritation caused by toxic blooms of Karenia brevis.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 42 citations in OpenAlex.
- PredictingGeoHealth · 2026Article
- Brevetoxin PbTx2 Modulates Oxidative Stress and Inflammatory Response in an In Vitro Human Immune Cell Line.Toxics · 2026Article
- Integrating Machine Learning with Flow-Imaging Microscopy for Automated Monitoring of Algal Blooms.Environmental science & technology · 2025Article
- Airborne Cyanobacterial Toxins and Their Links to Neurodegenerative Diseases.Molecules (Basel, Switzerland) · 2025Review
- Revisiting harmful algal blooms in India through a global lens: An integrated framework for enhanced research and monitoring.iScience · 2025Review
- Microbial drinking water quality deterioration during distribution and household usage, determined together with citizen scientists.PloS one · 2025Article
- Introducing ARTiMiS: A Low-Cost Flow Imaging Microscope for Microalgal Monitoring.Environmental science & technology · 2024Article
- Article
- Imaging Technologies Build Capacity and Accessibility in Phytoplankton Species Identification Expertise for Research and Monitoring: Lessons Learned During the COVID-19 Pandemic.Frontiers in microbiology · 2022Article
Corrections and comments
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Blooms of the toxic microalga Karenia brevis occur seasonally in Florida, Texas and other portions of the Gulf of Mexico. Brevetoxins produced during Karenia blooms can cause neurotoxic shellfish poisoning in humans, massive fish kills, and the death of marine mammals and birds. Brevetoxin-containing aerosols are an additional problem, having a severe impact on beachgoers, triggering coughing, eye and throat irritation in healthy individuals, and more serious respiratory distress in those with asthma or other breathing disorders. The blooms and associated aerosol impacts are patchy in nature, often affecting one beach but having no impact on an adjacent beach. To provide timely information to visitors about which beaches are low-risk, we developed HABscope; a low cost (~$400) microscope system that can be used in the field by citizen scientists with cell phones to enumerate K. brevis cell concentrations in the water along each beach. The HABscope system operates by capturing short videos of collected water samples and uploading them to a central server for rapid enumeration of K. brevis cells using calibrated recognition software. The HABscope has a detection threshold of about 100,000 cells, which is the point when respiratory risk becomes evident. Higher concentrations are reliably estimated up to 10 million cells L-1. When deployed by volunteer citizen scientists, the HABscope consistently distinguished low, medium, and high concentrations of cells in the water. The volunteers were able to collect data on most days during a severe bloom. This indicates that the HABscope can provide an effective capability to significantly increase the sampling coverage during Karenia brevis blooms.
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