Physico-chemical seasonal variability of a tropical estuary: major and minor elements in water and air

Provenance and depositional history of continental slope sediments in the Southwestern Gulf of Mexico unraveled by geochemical analysis

“…On the other hand, the correlation between Sr and CaO is statistically significant for the upper section sediments, which indicates that they may derive from a similar source, probably carbonate rocks, and not completely related to anthropogenic activity (Pakzad et al, 2014). This result is consistent with the study by Rosales-Hoz et al (2003) from the Coatzacoalcos River estuary sediments, which identified an anthropogenic source for the elements Cd and Zn. In addition, RuizFernández et al (2012) also reported that the sediments collected from the mouth of the Coatzacoalcos River were slightly enriched by As, Cd, Pb, and Zn due to contaminated clay minerals of lithogenic origin.…”

“…Rosales-Hoz et al, 2003;Vera-Mendoza and Salas-de-León, 2014). However, the anthropogenic influence and provenance of deep sea sediments based on trace and REE characteristics in this region has not yet been reported.…”

As, Cr, Hg, Pb, and Cd Concentrations and Bioaccumulation in the Dugong Dugong dugon and Manatee Trichechus manatus: A Review of Body Burdens and Distribution

“…Aquatic contamination and presence of metals has been studied in different areas of southeastern Mexico [15,16,17,18], but few studies have focused on aquatic mammals throughout the whole country, particularly on manatees [15,19]. This becomes more relevant when we consider that Mexican and international laws protect these organisms, and there are massive deaths without a clear explanation in different scenarios, such as death by entanglements, collisions with vessels or algal blooms that have been observed in other geographical areas of importance for marine mammals, such as the Florida Peninsula [20,21,22], Brazil [23], Atlantic Ocean [24], China [25,26], Africa [27], South America [28], Russia [29,30], or United Kingdom and Europe [31,32,33,34,35,36,37,38].…”