VDI 3957 Blatt 2:2013-05

Air pollution can cause accumulation of substances in plants. The assessment of such accumulation shows deposition-related inputs into ecosystems and may indicate risks for plants, animals and humans. In many cases, grass cultures (Lolium multiflorum) are used as plant accumulation indicators. The guideline describes the range of use and practical steps of the method of the standardised grass exposure. The individual steps from cultivation, exposure, sampling and sample handling are presented. In addition, the guideline user gets information and operational recommendations regarding quality assurance, performance characteristics, presentation of measured data and assessment.