VDI 4251 Blatt 3
-
Draft
Measurement of airborne microorganisms and viruses in ambient air - Plant-related dispersion modelling for bioaerosols
At a glance
- Publication date
- 2026-01
- German title
-
Erfassen luftgetragener Mikroorganismen und Viren in der Außenluft - Anlagenbezogene Ausbreitungsmodellierung von Bioaerosolen
- End date of the objection deadline
- 2026-04-30
- Number of pages
- 18
- Available in
- German
- Related manuals
Abstract
The standard provides a method to calculate the immission of bioaerosols in ambient air from one or more emission sources of plants. The determination is made using a numerical dispersion calculation with a Lagrangian particle model in accordance with VDI 3945 Part 3. Gaseous metabolic products formed by bacteria or moulds, such as MVOCs (microbial volatile organic compounds), are not covered by this standard. The standard represents a standardised, practice-oriented tool for determining the immission of bioaerosols for subsequent evaluations and analyses. It can be used in the context of measurement planning and for other technical questions relating to the dispersion of bioaerosols. The standard is based in large part on the specifications of Annex 2 of TA Luft 2021 (dispersion calculation) and on the recommendations for the implementation and quality assurance of dispersion calculations (see standards VDI 3783 Part 13 and VDI 3783 Part 13.1). The AUSTAL program system is the reference model of TA Luft 2021 (see VDI 3945 Part 3).
Purchase VDI Standard
Objection
Raise an objection against this VDI Standard draft.
Raise objection now (online) Raise objection now (Excel)