Cleiton Frigo, Ederlan Magri, Julierme Zimmer Barbosa, Laudete Maria Sarteretto, Eloá Moura Araujo, Vander Freitas de Melo, Stephen Arthur Prior and Antônio Carlos Vargas Motta
Vehicular road traffic may represent an important soil and plant contamination source. In this context, the concentration of heavy metals (Cd, Pb, As, Sb, Ni, Cu, Fe, Al, Mn and…
Abstract
Purpose
Vehicular road traffic may represent an important soil and plant contamination source. In this context, the concentration of heavy metals (Cd, Pb, As, Sb, Ni, Cu, Fe, Al, Mn and Zn) and macronutrients (Ca, Mg, K and P) was evaluated in yerba mate (Ilex paraguariensis St. Hil.) cultivations and in soils adjacent to highways.
Design/methodology/approach
The investigated yerba mate cultivations were located in southern Brazil. Plant tissue (young and old leaves and branches) and soil (0–10 cm) samples were collected at five distances from the highway (0–10, 10–20, 20–30, 30–40 and 40–50 m). Plant tissue was analyzed with and without washing to evaluate contributions from particulate deposition.
Findings
Although increases in soil pseudo-total concentrations of Cd, Cu, Ni, Zn, Fe, Mn, Ca and Mg were observed only at the Erechim site, geoaccumulation indices and enrichment factors (EFs) did not indicate any heavy metal pollution. These results indicate the existence of natural variation in soil. Cadmium was more concentrated in branches than in leaves, while the opposite was observed for Pb. High levels of Mn and Al were found in foliar tissue. In summary, highway proximity did not lead to heavy metal contamination of yerba mate under the evaluated conditions.
Originality/value
This research explores the possibility of heavy metal pollution in plantations of yerba mate adjacent to highways and indicates natural concentrations of toxic elements that exceed current legislation, which was an important discovery regarding the yerba mate production chain.
Details
Keywords
Marcos Roque da Rosa, Sara Moggi, Clodis Boscarioli and Kátya Regina de Freitas Zara
This study aims to examine how Brazilian universities have implemented the sustainable development goals (SDGs) in institutional practices, curriculum and teaching, management and…
Abstract
Purpose
This study aims to examine how Brazilian universities have implemented the sustainable development goals (SDGs) in institutional practices, curriculum and teaching, management and community outreach programs.
Design/methodology/approach
This study is based on content analysis of the data sets of Brazilian higher education courses and their link to SDGs. A literature review has also been developed to integrate the knowledge of sustainability practices in Brazilian universities. Dashboards will be used to present the related findings.
Findings
Brazilian universities’ practices have concentrated their efforts on SDGs, which include responsible consumption and production, sustainable cities and communities and quality education. The literature emphasizes energy efficiency, reflecting its prominence as a subject of study among universities.
Originality/value
This research highlights the innovative use of data analysis techniques to present the findings. It also provides examples of environmental, social and governance (ESG) practices, frameworks and tools that can help sustainability management in this sector.