👉 Elevated Microbial Contamination Value (EMCV) is a measure used in environmental science, primarily for assessing the presence and concentration of microorganisms on surfaces or in the air. It can be calculated by dividing the microbial count on an object by its surface area, which is typically measured in square meters. This value indicates how much microorganisms are present on an object, with higher values indicating a higher concentration of microorganisms.