Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Setup of the experiment: (A)—a map of Postojnska jama with designated locations for bioaerosol sampling along the underground railway (1–5, 16) and tourist footpath (2–15, 17) (ground plan modified from the Cave cadastre of the Karst Research Institute ZRC SAZU); (B)—an example of open Petri plates for bioaerosol settling.
