Editorial: Biogeochemistry of Anthropogenic Particles

The aims of this Research Topic were thus to explore the state of knowledge, including major advances and challenges, with regards to the sources, occurrence, transformations, and transport of particles, as well as the interactive effects between particles and their environment including living systems. [...]we have brought together research papers and reviews on anthropogenic particles, regardless of their origin and nature. Here the particulate nature results in unique properties and behaviors, often not directly comparable to that of other synthetic chemicals and materials. [...]understanding the biogeochemistry of man-made particles remains one of the major challenges of modern environmental sciences, even after decades of study. [...]of their origin, particles can play a special role in environmental systems and behave fundamentally different in terms of fate, transport, and biological interactions than dissolved chemicals or bulk materials. [...]understanding the biogeochemistry of these smallest of man-made materials is crucial in assessing all the ways in which humanity is continuously impacting our environment. [...]researchers can now track particles at very low particle concentrations and tackle research projects to understand the behavior of particles in a more environmentally relevant context.