Publications by authors named "Carlos E Souto-Oliveira"
Article Synopsis
- Marinas play a crucial role in maritime leisure and transport but can negatively impact sediment quality in their vicinity.
- This study analyzed sediment samples from Bracuhy marina in Southeast Brazil to track metal contamination linked to antifouling paints, focusing on elements like Cu, Zn, Pb, Cd, and Sn.
- Results showed significant increases in Cu and Zn levels, up to 15 and 5 times the baseline, indicating severe contamination coinciding with marina activities, highlighting the environmental consequences of such operations.
Article Synopsis
- The study examines copper contamination in a Brazilian mangrove, focusing on its sources and stable isotopes as tracers.
- It utilizes multi-isotopic methods and sediment analysis to identify two key stages of copper evolution: pre-1965 showing natural landscape changes and post-1965 indicating increased anthropogenic copper input.
- Findings highlight the effectiveness of copper isotopes as environmental tools for tracing human impacts on mangrove ecosystems while enhancing understanding of copper dynamics over time.
Recently, extreme wildfires have damaged important ecosystems worldwide and have affected urban areas miles away due to long-range transport of smoke plumes. We performed a comprehensive analysis to clarify how smoke plumes from Pantanal and Amazon forests wildfires and sugarcane harvest burning also from interior of the state of São Paulo (ISSP) were transported and injected into the atmosphere of the Metropolitan Area of São Paulo (MASP), where they worsened air quality and increased greenhouse gas (GHG) levels. To classify event days, multiple biomass burning fingerprints as carbon isotopes, Lidar ratio and specific compounds ratios were combined with back trajectories modeling.
View Article and Find Full Text PDFThe aim of this study is to discuss the concentration distribution, composition and possible sources of trace metals and 13 PAHs in topsoils of the University campus, in the city of São Paulo, the largest city of South America. Mineralogy and granulometry of topsoils (0-10 cm) samples, were determined and As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, Sb, V, Zn, Hg, Pt, Pd and PAHs concentrations were quantified in the bulk fraction. The average clay content of soils was 221±61.
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