Resumen
El presente estudio tuvo como objetivo evaluar las concentraciones de multielementos (Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb, Sr) en material particulado suspendido (MPS) recolectado en la laguna Ensnada de La Paz (ELP), Baja California Sur, México en dos periodos diferentes (Septiembre y Mayo) para comprender su origen, comportamiento geoquímico, transferencia de masa y riesgos ecotoxicológicos asociados. Se encontró que el coeficiente de variación de 24 horas de los niveles volumétricos de SPM 51.7% en septiembre y 40.5% en mayo, lo que indica los efectos de las aguas oceánicas. Los valores del factor de enriquecimiento (EF) calculados en
The present study aimed to evaluate multi-element concentrations (Al, As, Ca, Cd, Co, Cr,
Cu, Fe, Mg, Mn, Mo, Ni, Pb, Sr) in suspended particulate material (SPM) collected from Ensenada de La Paz (ELP) lagoon, Baja California Sur, Mexico in two different periods (September and May) to comprehend their origin, geochemical behavior, mass transfer and associated ecotoxicological risks. The 24 hr variation coefficient of volumetric SPM levels were found to be 51.7% in September and 40.5% in May, signifying the effects of oceanic waters. The calculated enrichment factor (EF) values for all the studied elements were of higher magnitude because of the high surface area and oxide nature of SPM, and in this study, Mo had thehighest EF of 46.77 probably due to its origin from continental weathering. From the ecotox-icological perspective, the integrated toxic risk index revealed low toxic risk to the benthiccommunity. However, the mean-ERM-Quotient calculated using the particulate concentra-tions of As, Cd, Cr, Cu, Ni, Pb indicated 9% probability of toxicity to biota. The comprehensivegeochemical and ecotoxicological assessment of particulate metal concentrations in the ELPlagoon signify low to moderate contamination
The present study aimed to evaluate multi-element concentrations (Al, As, Ca, Cd, Co, Cr,
Cu, Fe, Mg, Mn, Mo, Ni, Pb, Sr) in suspended particulate material (SPM) collected from Ensenada de La Paz (ELP) lagoon, Baja California Sur, Mexico in two different periods (September and May) to comprehend their origin, geochemical behavior, mass transfer and associated ecotoxicological risks. The 24 hr variation coefficient of volumetric SPM levels were found to be 51.7% in September and 40.5% in May, signifying the effects of oceanic waters. The calculated enrichment factor (EF) values for all the studied elements were of higher magnitude because of the high surface area and oxide nature of SPM, and in this study, Mo had thehighest EF of 46.77 probably due to its origin from continental weathering. From the ecotox-icological perspective, the integrated toxic risk index revealed low toxic risk to the benthiccommunity. However, the mean-ERM-Quotient calculated using the particulate concentra-tions of As, Cd, Cr, Cu, Ni, Pb indicated 9% probability of toxicity to biota. The comprehensivegeochemical and ecotoxicological assessment of particulate metal concentrations in the ELPlagoon signify low to moderate contamination
| Título traducido de la contribución | Elementos geoquímicos en partículas suspendidas de la Laguna Ensenada de la Paz, Península de Baja California, México: Fuentes, distribución, balance de masas y riesgo ecotoxicológico |
|---|---|
| Idioma original | Inglés |
| Páginas (desde-hasta) | 422-436 |
| Número de páginas | 15 |
| Publicación | Journal of Environmental Sciences |
| Volumen | 136 |
| Fecha en línea anticipada | 14 sep. 2022 |
| DOI | |
| Estado | Publicada - 1 mar. 2023 |
Palabras clave
- suspended particulate material
- heavy metals
- risk assessment
- mass transfere
- Ensenada de la Paz
ODS de las Naciones Unidas
Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible
