Evaluation of the influence of the granulometric composition of soils and marine sediments of the South of Kamchatka on the content of acid-soluble forms of leadOlga Nesterova, Viktoriia Semal, Anastasia Brikmans, Andrey Gilev and Andrey EgorinE3S Web Conf., 371 (2023) 03048DOI: https://doi.org/10.1051/e3sconf/202337103048