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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Marine & Wildlife Sign in to save

Microplastics in surface water of Laguna de Bay: First documented evidence on the largest lake in the Philippines

2022 5 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Sherley Ann T. Inocente, Cris Gel Loui A. Arcadio, Cris Gel Loui A. Arcadio, Cris Gel Loui A. Arcadio, Cris Gel Loui A. Arcadio, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Kaye M. Similatan, Kaye M. Similatan, Kaye M. Similatan, Marybeth Hope T. Banda, Sherley Ann T. Inocente, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Sheila Mae B. Ancla, Sheila Mae B. Ancla, Rey Y. Capangpangan Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Hernando P. Bacosa, Cris Gel Loui A. Arcadio, Hernando P. Bacosa, Hernando P. Bacosa, Cris Gel Loui A. Arcadio, Cris Gel Loui A. Arcadio, Cris Gel Loui A. Arcadio, Hernando P. Bacosa, Cris Gel Loui A. Arcadio, Kaye M. Similatan, Armi G. Torres, Cris Gel Loui A. Arcadio, Hernando P. Bacosa, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Rey Y. Capangpangan Sherley Ann T. Inocente, Kaye M. Similatan, Kaye M. Similatan, Carl Kenneth P. Navarro, Carl Kenneth P. Navarro, Kaye M. Similatan, Sherley Ann T. Inocente, Rey Y. Capangpangan Sherley Ann T. Inocente, Rey Y. Capangpangan Hernando P. Bacosa, Sherley Ann T. Inocente, Rey Y. Capangpangan Hernando P. Bacosa, Sherley Ann T. Inocente, Sherley Ann T. Inocente, Sherley Ann T. Inocente, Sheila Mae B. Ancla, Hernando P. Bacosa, Rey Y. Capangpangan Hernando P. Bacosa, Marybeth Hope T. Banda, Marybeth Hope T. Banda, Hernando P. Bacosa, Armi G. Torres, Sheila Mae B. Ancla, Marybeth Hope T. Banda, Hernando P. Bacosa, Marybeth Hope T. Banda, Hernando P. Bacosa, Hernando P. Bacosa, Sherley Ann T. Inocente, Rey Y. Capangpangan Hernando P. Bacosa, Rey Y. Capangpangan Rey Y. Capangpangan Armi G. Torres, Marybeth Hope T. Banda, Sherley Ann T. Inocente, Armi G. Torres, Hernando P. Bacosa, Rey Y. Capangpangan Hernando P. Bacosa, Rey Y. Capangpangan Armi G. Torres, Rey Y. Capangpangan Marybeth Hope T. Banda, Hernando P. Bacosa, Hernando P. Bacosa, Hernando P. Bacosa, Hernando P. Bacosa, Hernando P. Bacosa, Rey Y. Capangpangan Hernando P. Bacosa, Rey Y. Capangpangan Hernando P. Bacosa, Rey Y. Capangpangan

Summary

Microplastics were detected for the first time in the surface water of Laguna de Bay, the largest lake in the Philippines, at all ten sampling stations. Fibers were the dominant type, consistent with textile sources, and concentrations varied across the lake. The study establishes the first baseline data on microplastic contamination in a major Philippine freshwater body.

Study Type Environmental

<title>Abstract</title> The pollution of aquatic systems by microplastics is a well-known environmental problem. However, limited studies have been conducted in freshwater systems, especially in the Philippines. Here we determined for the first time the amount of microplastics in the Philippines’ largest freshwater lake, the Laguna de Bay. Ten (10) sampling stations on the lake's surface water were sampled using a plankton net. Samples were extracted and analyzed using Fourier transformed infrared spectroscopy (FTIR). A total of 100 microplastics were identified from 10 sites with a mean density of 14.29 items/m<sup>3</sup>. The majority of microplastics were fibers (57%), while blue-colored microplastics predominated in the sampling areas (53%). There were 11 microplastic polymers identified predominantly polypropylene (PP), ethylene vinyl acetate copolymer (EVA), and polyethylene terephthalate (PET), which together account for 65% of the total microplastics in the areas. The results show that there is a higher microplastic density in areas with high relative population density which necessitates the implementation of proper plastic waste management measures in the communities operating on the lake and in its vicinity to protect the lake's ecosystem services. Furthermore, future research should also focus on the environmental risks posed by these microplastics, especially on the fisheries and aquatic resources.

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