Abstract: A method, apparatus, and system for controlling an environment within a container having at least one material type. An inert gas is introduced into the container to displace any harmful atmospheric components that may be present in the container, which could react with the solid material in the container. The displaced harmful atmospheric components are expelled from the container to a measuring device which identifies the concentration of the expelled components. The amount of inert gas being introduced into the container may be controlled in response to the measured results.