ADMLC report on dispersion from agricultural sources published
‘A review of the limitations and uncertainties of modelling pollutant dispersion from non-point sources’ was published earlier this year. This report presents a detailed literature review, including a summary of agricultural and bioaerosol source parameter ranges particularly of interest to those modelling multiple releases from low-level sources in the vicinity of farm sheds.
Results from four validation studies are presented, where ADMS and AERMOD have been configured to represent emissions using all available non-point source types. The study recommends that source buoyancy and momentum should be accounted for if these parameters are at least moderately different from ambient conditions; it also includes good practice guidance.
This work was funded by the UK Atmospheric Dispersion Modelling Liaison Committee and was co-authored by CERC, Steve Smith (A S Modelling & Data Ltd.) and Akula Venkatram (University of California, CA, US).
See report here.
Related software
Related training
Related news
-
Can I use NWP met data for dispersion modelling?
CERC has been commissioned to carry out an investigation into the use of Numerical Weather Prediction (NWP) met data in atmospheric dispersion modelling. CERC`s consultancy and scientific research teams will focus on modelling carried out for planning and permitting under EPR, whilst the UK Health Security Agency (UKHSA) will target probabilistic accident consequence assessments. The project will provide important evidence for determining which NWP data are most appropriate for dispersion modelling and how...
-
New review of odour emissions modelling with model intercomparison
Dispersion modelling plays an important role in the assessment of potential odour annoyance for planned activities and the investigation of complaints related to existing facilities. However, compared to general air pollution modelling there are particular challenges associated with modelling odour dispersion and exposure due to the importance of odour variations over short timescales to the perceived nuisance. CERC`s consultancy team, with Estonian, Latvian and Lithuanian Environment (ELLE) has carried out a...
-
ADMS NOx Chemistry Scheme Implemented in AERMOD
A journal article by CERC authors describes the implementation of a NOx chemistry scheme in AERMOD which uses similar reactions and an analogous calculation method to the ADMS GRS chemistry. The new chemistry scheme, ADMSM, shows good performance when compared to measurements from five validation studies. The NO2 predicted by ADMSM has increased consistency with modelled NOx compared to the OLM or PVMRM approaches in AERMOD. The figure shows a comparison of predicted average hourly NO2 to NOx ratios against the...
-
ADMS 5.2.4 Patch Released
There is a new version of ADMS 5 available, which is a minor update to version 5.2. The new release includes the latest versions of AERMOD (18081), AERMAP (18081) and AERMET (18081) as released by the US-EPA. View the readmedocument for further details about the update. Current users should login to the User Area to download the patch. This patch can be applied to ADMS 5.2, 5.2.1 or 5.2.2.
-
New CERC Publications in the International Journal of Environment and Pollution
Two papers from CERC authors have recently been published in the International Journal of Environment and Pollution, as part of a special issue from HARMO17. The first paper (Stocker et al. 2017, doi 10.1504/IJEP.2017.10010380) concerns the review of dispersion modelling of agricultural emissions with non-point sources, using the ADMS and AERMOD models to examine dispersion of emissions from typical agricultural sources and a specific case study. This expands on work originally carried out for ADMLC. A figure...
Customer comments
No comments were found for ADMLC report on dispersion from agricultural sources published. Be the first to comment!