Arsenic and selenium in the plant-soil-human ecosystem: CREST publications during 2018-2021.

The biogeochemical transformations and biological effects of metalloids arsenic (As) and selenium (Se) in the environment has been extensively explored during the last decade, mainly owing to their ubiquitous distribution in the environment and their toxicity to biota. Here, we summarized recent research progress regarding As and Se in plant-soil-human ecosystem based on 17 publications in Critical Reviews in Environmental Science and Technology (CREST) during 2018-2021. The topics include: 1) organic As transformation in the environment and inorganic As uptake by plants (4 publications), 2) Se uptake by plants and its interactions with toxic metals in plants (6 publications), 3) As bioaccessibility and remediation of As-contaminated soils (4 publications), and 4) As research across spatial and temporal scale (3 publications). Specifically, the uptake, transformation, toxicity, bioaccessibility of As/Se in the plant-soil-human ecosystem together with pollution control measures are summarized. Future studies should focus on better understanding the cycling and biogeochemistry of As/Se in the environment, further decoding their environmental effects from the One Health perspective. [ABSTRACT FROM AUTHOR]