Distribution of organochlorine, organophosphates, carbamate, thiocarbamate, pyrethroids, and strobilurins in surface sediments of the Rio de Ondas watershed by GC-MS

Rego, Enoc Lima do; Silva, José Domingos Santos da; Nakamura, Thamilin Costa; Diniz, Paulo Henrique Gonçalves Dias; Oliveira, Uldérico Rios; Souza, Jurandir Rodrigues de

doi:10.1080/03601234.2021.1885263

Cited by 10 publications

(1 citation statement)

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“…In Brazil, it was banned in 2017 (Ministério da Saúde, 2017), but it used to be one of the most frequent pesticides applied in irrigated rice plantations (Agência Nacional de Vigilância Sanitária, 2022). Although banned, carbofuran continues to be detected in water and sediments in some countries (Acayaba et al, 2021; Asghar et al, 2019; Lima et al, 2021; Ramírez‐Morales et al, 2020), with negative effects on various aquatic organisms, as shown by recent work with crustaceans (Nogueira & Nunes, 2021), fish (Cui et al, 2019; Khan et al, 2020), cyanobacteria (Dutta & Baruah, 2020), and microalgae (Mansano et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of the Pesticide Carbofuran on Two Species of Chlorophyceae (Desmodesmus communis and Pseudopediastrum boryanum) and Their Pesticide Bioremediation Ability

da Luz,

Guimarães,

Castro

et al. 2024

Enviro Toxic and Chemistry

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Carbofuran is one of the most toxic broad‐spectrum pesticides. We evaluated the effects of carbofuran on two species of microalgae, Pseudopediastrum boryanum, and Desmodesmus communis, through measurements of cell viability, biomass, the chlorophyll content, and the production of reactive oxygen species (ROS). The ability of these algae to remove carbofuran dissolved in the media was also determined. For the evaluations, both microalgae species were exposed to carbofuran (FURADAN 350 SC®) at concentrations of 100, 1,000, and 10,000 µg L‐1 for 7 days. Algae cell viability and chlorophyll‐a concentration were not affected by the presence of carbofuran. Both species grew when exposed to the pesticide; however, the microalgae D. communis grew less than its respective control when exposed to the highest concentration (10,000 µg L‐1 of carbofuran), indicating an adverse effect of the pesticide on this species. A significant increase in ROS production was observed in D. communis and P. boryanum when exposed to the highest concentration tested. The microalgae P. boryanum completely removed carbofuran in the media within 2 days, regardless of the concentration, whereas D. communis achieved the same result only after 5 days of exposure. Growth inhibition was observed only until the disappearance of carbofuran from the media. This study suggests the use of microalgae, mainly P. boryanum, as potential tools for the remediation of environments contaminated by carbofuran due to their resistance to the insecticide and their ability to remove it rapidly from water.

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