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9 December 2024 Characterization of microplastics found in mosquito oviposition habitats
Gabriella McConnel, Destiny Cuellar, Kailash Dhondiram Arole, Smita Shivraj Dasari, Micah J. Green, Jaclyn E. Cañas-Carrell, Corey L. Brelsfoard
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Abstract

This study examined the presence and characteristics of microplastics (MPs) in water collected from potential mosquito oviposition habitats in Lubbock, TX. Water samples ranging from 10 to 1000 mL were collected from 36 suspected artificial and natural oviposition habitats, and sites were categorized as artificial containers, tires, or natural sites. Samples were filtered through a series of stainless-steel sieves and isopore membrane filters, and MPs were imaged and counted using a stereo microscope. MPs were classified by shape into fragments, fibers, films, spheres, and foams. Scanning Electron Microscopy (SEM), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA)were employed to characterize the size, morphology, and polymer type of MPs collected from a subset of oviposition habitats. Results suggest MPs are commonly found in artificial containers and tires, and at higher concentrations than natural sites. Furthermore, MPs found in all potential oviposition sites were predominantly fragments and fibers. SEM analysis revealed diverse morphologies and indicated potential microbial colonization on MP surfaces. Ultimately, this study provides insights into the distribution and characteristics of MPs in mosquito oviposition habitats, highlighting the potential impact of MP pollution and the potential effects on mosquito biology, and serves as a foundation for further research on the ecological implications of MPs in mosquito oviposition habitats.

Gabriella McConnel, Destiny Cuellar, Kailash Dhondiram Arole, Smita Shivraj Dasari, Micah J. Green, Jaclyn E. Cañas-Carrell, and Corey L. Brelsfoard "Characterization of microplastics found in mosquito oviposition habitats," Journal of Vector Ecology 50(1), 39-47, (9 December 2024). https://doi.org/10.52707/1081-1710-50.1-39
Received: 24 July 2024; Accepted: 30 October 2024; Published: 9 December 2024
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KEYWORDS
Aedes
container inhabiting
larval habitat
Microplastics
pollution
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