Biogeochemical behaviour of cadmium in sediments and potential biological impact on mangroves under anthropogenic influence: A baseline survey from a protected nature reserve
Por:
Celis-Hernandez, Omar, Ontiveros-Cuadras, Jorge Feliciano, Ward, Raymond D., Giron-Garcia, Maria Patricia Maria Patricia, Perez-Ceballos, Rosela Yazmin, Canales-Delgadillo, Julio Cesar, Acevedo-Granados, Inna Valeria, Santiago-Perez, Susana, Armstrong-Altrin, John S., Merino-Ibarra, Martin
Publicada:
1 dic 2022
Resumen:
Cadmium is a toxic element and its effects are well understood for human
health, but its biogeochemical behaviour is still poorly studied and
understood in natural ecosystems. This work addresses knowledge gaps
concerning its presence, biogeochemical behaviour and impacts in
mangrove ecosystems. Through geochemical data and multivariate analysis
(i.e., factor and cluster analysis) of data from mangroves of Isla del
Carmen, one of the largest extents in Mexico we explored the
biogeochemical behaviour of Cd, a potentially toxic element, to identify
its anthropogenic sources and interactions with sediments. Pollution
indices, including enrichment factor (EF), geo-accumulation index
(Igeo), sediment quality guidelines (SQG) and toxicological studies were
used to assess the biological impacts of Cd and infer the natural levels
tolerated by mangrove trees that form the basis of this natural
ecosystem. Our results highlighted that Cd accumulation is driven by
interactions between organic matter (OM), sulphur and fine particles;
whereas enrichment factor showed values of 6.9 (EF) and 3.5 (EF)
associated with point sources and ranged between 2 and 2.9 (EF) in
relation to non-point sources. Finally, our geochemical approach
revealed that Cd enrichment originates from urban activities and from
the poor management of urban residuals.
Filiaciones:
Celis-Hernandez, Omar:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Ciudad Del Carmen 24157, Campeche, Mexico
Direcc Catedras CONACYT, Ave Insurgentes 1582, Ciudad De Mexico 03940, Mexico
Ontiveros-Cuadras, Jorge Feliciano:
Univ Nacl Autonoma Mexico, Unidad Acad Proc Ocean & Costeros, Inst Ciencias Mar & Limnol, Circuito Exterior S-N, Mexico City 04510, Mexico
Ward, Raymond D.:
Univ Brighton, Ctr Aquat Environm, Cockcroft Bldg, Brighton BN2 4GJ, East Sussex, England
Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 5, EE-51014 Tartu, Estonia
Univ Fed Ceara, Colegio Estudos Avancados, Campus do Pici, BR-60455760 Fortaleza, Brazil
Giron-Garcia, Maria Patricia Maria Patricia:
Univ Nacl Autonoma Mexico, Lab Fluorescencia Rayos X LANGEM, Inst Geol, Ciudad Univ, Ciudad De Mexico 04510, Mexico
Perez-Ceballos, Rosela Yazmin:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Ciudad Del Carmen 24157, Campeche, Mexico
Direcc Catedras CONACYT, Ave Insurgentes 1582, Ciudad De Mexico 03940, Mexico
Canales-Delgadillo, Julio Cesar:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Ciudad Del Carmen 24157, Campeche, Mexico
Direcc Catedras CONACYT, Ave Insurgentes 1582, Ciudad De Mexico 03940, Mexico
Acevedo-Granados, Inna Valeria:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Ciudad Del Carmen 24157, Campeche, Mexico
Santiago-Perez, Susana:
Univ Nacl Autonoma Mexico, Unidad Acad Proc Ocean & Costeros, Inst Ciencias Mar & Limnol, Circuito Exterior S-N, Mexico City 04510, Mexico
Armstrong-Altrin, John S.:
Univ Nacl Autonoma Mexico, Unidad Acad Proc Ocean & Costeros, Inst Ciencias Mar & Limnol, Circuito Exterior S-N, Mexico City 04510, Mexico
Merino-Ibarra, Martin:
Univ Nacl Autonoma Mexico, Unidad Acad Ecol & Biodivers Acuat, Inst Ciencias Mar & Limnol, Circuito Exterior S-N, Ciudad Univ, Mexico City 04510, Mexico
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