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The most extensive oil spill ever recorded in tropical oceans occurred between August 2019 and March 2020, affecting approximately 3000 km of the Brazilian coast. This study assessed the chemical contamination and toxicity of sediments collected from affected reef areas during two sampling surveys conducted 17 and 24 months after the peak of oil slick inputs. Our results indicated that neither PAH levels nor measured toxicity showed a significant contribution from the spilled oil, with concentrations and biological effects indistinguishable from those in unaffected areas. Similarly, no differences were observed between seasons. Furthermore, there was no discernible relationship between sediment toxicity results and the measured PAH concentrations. Therefore, while biological responses indicated toxicity in most assessed areas, these responses are likely related to other local sources. This evidence suggests a natural oil attenuation process contributing to local environmental recovery. Nonetheless, further investigation is needed for other areas affected by oil spills.
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http://dx.doi.org/10.1016/j.marpolbul.2024.116063 | DOI Listing |
Pestic Biochem Physiol
November 2025
College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration; Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species and College of Agronomy, Key Laboratory of Crop Ph
Rhizoctonia solani (R. solani) is a phytopathogen that extensively affects crops, leading to plant diseases and reducing crop yields, which jeopardizes food security. β-pinene is a major component of turpentine oil and serves as a lead compound for developing new fungicides.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Department of Inorganic, Organic and Biochemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, 13005, Spain. Electronic address:
This study investigates the extraction, optimization, and characterization of pectin from pistachio industry waste (PIW) using microwave-assisted subcritical water extraction (MASWE) without acid. Two different low-methoxyl pectins (LMP) were observed. The first pectin variant (MASWE100) was extracted at a pressure of 3 MPa, a temperature of 100 °C, and an irradiation time of 4 min.
View Article and Find Full Text PDFEnviron Pollut
September 2025
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Zhejiang Key Laboratory of Environment and Health of New Pollutants, School of Environment, Hangzhou Institute for Advanced Study, U
Per- and polyfluoroalkyl substances (PFAS) are extensively used in the petrochemical industry and pose considerable risks to the environment. However, systematic research on PFAS contamination in petrochemical industrial parks remains limited. This study focused on the occurrence, spatial distribution, and sources of 20 typical PFAS in soil (n = 19) and groundwater (n = 13) samples from a petrochemical industrial park in China.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
Although intelligent superwettability materials with tunable wettability have been extensively studied in oil-water separation, they still exhibit several limitations including singular dimension of response, nondurable surface modification, and inadequate on-demand separation capabilities. Herein, we propose an ingenious strategy that combines pH-responsive polymer and shape memory material to achieve intelligent dual-regulation of surface wettability and pore size. A porous double-regulated foam (DRF) is obtained by uniformly mixing epoxy resin with PMMA--PDEAEMA solution and one-piece curing it through salt template method.
View Article and Find Full Text PDFBiology (Basel)
August 2025
Experimental Center of Subtropical Forestry, Chinese Academy of Forestry, Xinyu 338000, China.
, a woody oilseed species endemic to China, often experiences growth constraints due to seasonal drought. This study investigates the coordinated regulation of photosynthetic traits, stomatal behavior, and hormone responses during drought-rehydration cycles in two cultivars with contrasting drought resistance: 'CL53' (tolerant) and 'CL40' (sensitive). Photosynthetic inhibition resulted from both stomatal and non-stomatal limitations, with cultivar-specific differences.
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