A critical evaluation of the use and ‘misuse’ of As and Pb bioaccessibility data in human health risk assessments

Use of remote sensing to assess vegetative stress as a proxy for soil contamination

“…In the laboratory, all soil samples were air-dried to minimise loss of organic compounds (48 hours), then ground with a mortar and pestle, and finally sieved through a 250 μm nylon mesh. 24 Each of the sieved soil samples were subsequently sub-divided into two: one portion was immediately frozen to reduce soil-microbial activity (−18 °C) for subsequent chromatographic analysis while the other portion was stored for analysis by energy dispersive XRF.…”

Determinación de los niveles de plomo en sangre en trabajadores de fábricas de baterías ubicadas en Guayaquil-Ecuador

“…Este se ha usado para elaborar baterías, balas, escudos de radiación, joyas de plata, soldaduras, remedios caseros, aditivos de gasolina, tuberías de distribución de agua, esmaltes de cerámica y se ha reconocido como un contaminante ambiental y ocupacional ( Agency for Toxic Substances and Disease Registry [ATSDR], 2020; Ballantyne et al, 2018). Además, el plomo se encuentra en los entornos urbanos y, en especial, en zonas residenciales cercanas a las industrias (Dean et al, 2020;Fry et al, 2020).…”