The standard gives specifications for the detection of effects by passive monitoring techniques in the area of influence of emission sources. It is aimed at operators of installations, accredited experts, consulting companies, authorities, and institutions that investigate and assess the effects and spatial distribution of installation-related immissions on plants including the accumulation of substances caused by immissions. The passive biomonitoring technique described, using needles and leaves of free-standing trees and shrubs, can be deployed quickly with little effort. Hence, it can quickly produce reliable results. The standard identifies those species and plant organs preferable for optimising the significance, comparability, and assessment of results. Meaningful areas of application and use cases of passive monitoring with trees and shrubs are, in particular, environmental impact studies and procedures for securing evidence concerning immission ecology.