Monitoring Wind and Particle Concentrations Near Freshwater and Marine Harmful Algal Blooms (HABs)

Simple item page
dc.contributor.authorBilyeu, Landonen
dc.contributor.authorGonzalez-Rocha, Javieren
dc.contributor.authorHanlon, Reginaen
dc.contributor.authorAlAmiri, Nooraen
dc.contributor.authorForoutan, Hoseinen
dc.contributor.authorAlading, Kunen
dc.contributor.authorRoss, Shane D.en
dc.contributor.authorSchmale, David G. IIIen
dc.date.accessioned2025-01-22T19:30:54Zen
dc.date.available2025-01-22T19:30:54Zen
dc.date.issued2023-10-05en
dc.description.abstractHarmful algal blooms (HABs) are a threat to aquatic ecosystems worldwide. New information is needed about the environmental conditions associated with the aerosolization and transport of HAB cells and their associated toxins. This information is critical to help inform our understanding of potential exposures. We used a ground-based sensor package to monitor weather, measure airborne particles, and collect air samples on the shore of a freshwater HAB (bloom of predominantly Rhaphidiopsis, Lake Anna, Virginia) and a marine HAB (bloom of Karenia brevis, Gulf Coast, Florida). Each sensor package contained a sonic anemometer, impinger, and optical particle counter. A drone was used to measure vertical profiles of windspeed and wind direction at the shore and above the freshwater HAB. At the Florida sites, airborne particle number concentrations (cm−3) increased throughout the day and the wind direction (offshore versus onshore) was strongly associated with these particle number concentrations (cm−3). Offshore wind sources had particle number concentrations (cm−3) 3 to 4 times higher than those of onshore wind sources. A predictive model, trained on a random set of weather and particle number concentrations (cm−3) collected over the same time period, was able to predict airborne particle number concentrations (cm−3) with an R squared value of 0.581 for the freshwater HAB in Virginia and an R squared value of 0.804 for the marine HAB in Florida. The drone-based vertical profiles of the wind velocity showed differences in wind speed and direction at different altitudes, highlighting the need for wind measurements at multiple heights to capture environmental conditions driving the atmospheric transport of aerosolized HAB toxins. A surface flux equation was used to determine the rate of aerosol production at the beach sites based on the measured particle number concentrations (cm−3) and weather conditions. Additional work is needed to better understand the short-term fate and transport of aerosolized cyanobacterial cells and toxins and how this is influenced by local weather conditions.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1039/d4va00172aen
dc.identifier.orcidSchmale, David [0000-0002-7003-7429]en
dc.identifier.orcidHanlon, Regina [0000-0003-1336-2601]en
dc.identifier.orcidForoutan, Hosein [0000-0003-4185-3571]en
dc.identifier.orcidRoss, Shane [0000-0001-5523-2376]en
dc.identifier.urihttps://hdl.handle.net/10919/124311en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.rightsCreative Commons Attribution-NonCommercial 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/en
dc.titleMonitoring Wind and Particle Concentrations Near Freshwater and Marine Harmful Algal Blooms (HABs)en
dc.title.serialEnvironmental Science Advancesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-groupVirginia Techen
pubs.organisational-groupVirginia Tech/Agriculture & Life Sciencesen
pubs.organisational-groupVirginia Tech/Engineeringen
pubs.organisational-groupVirginia Tech/Engineering/Aerospace and Ocean Engineeringen
pubs.organisational-groupVirginia Tech/Engineering/Civil & Environmental Engineeringen
pubs.organisational-groupVirginia Tech/All T&R Facultyen
pubs.organisational-groupVirginia Tech/Engineering/COE T&R Facultyen
pubs.organisational-groupVirginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-groupVirginia Tech/Agriculture & Life Sciences/School of Plant and Environmental Sciencesen
pubs.organisational-groupVirginia Tech/Agriculture & Life Sciences/School of Plant and Environmental Sciences/Schmaleen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Bilyeu_d4va00172a.pdf
Size:
3.12 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download
License bundle
Now showing 1 - 1 of 1
Name:
license.txt
Size:
1.5 KB
Format:
Plain Text
Description:
Download

Collections

All Faculty Deposits
Scholarly Works, Aerospace and Ocean Engineering
Scholarly Works, Chemical Engineering
Scholarly Works, Civil and Environmental Engineering
Scholarly Works, School of Plant and Environmental Sciences