Is it possible to obtaining a modelization of metals, pesticides and other pollutants in surface water along time and space in a watershed? Many softwares, predicts flows, O2, carbon, nitrogen, etc., such as SWAT and Basins but.. what about pollutants?
I have used PIRI model with some modification for this type of assessment (link is attached). But I can not say that this is a TOP software because I do not have proper idea about others.
A. G. Piyal Aravinna
https://www.tandfonline.com/doi/abs/10.1080/03601234.2016.1229445?journalCode=lesb20
Well,
Also, using many software related to spatial analyses technique, like GIS, Rockware and Surfer.
Sincerely
Dear Daniel,
to the best of my knowledge there are no catchment scale models which are able to predict all of the mentioned pollutants. However, there are models for some of the pollutants.
Some examples for pesticides:
- SWAT: besides the mentioned substances, there is also an option for pesticides (e.g. Fohrer et al., 2014)
- ZIN-AgriTra: This is my own model which is also able to predict pesticide transformation products (Gassmann et al., 2013, 2015):
Article Model-based estimation of pesticides and transformation prod...
https://www.sciencedirect.com/science/article/pii/S0048969715302643 - AnnAGNPS: (e.g. Flanagan et al., 2008)
I think the problem is, that all of the mentioned pollutants behave differently, have different sources etc. Thus, it is difficult to build a model able to predict all of the pollutants at the same time.
It is not possible to model all three classes together. They all have different chemical properties (adsorption, photolysis, concentration range) and you will have serious problems to get data for validation. In addition you will also have to take care of sediment/water/plant interactions. Check out your data set, lab facilities and then focus on a few substances. And get a good model for the water cycle before you even think about substances.
Hi Daniel,
First, I’d like to agree with Georg - get the hydrology right, it will make the other simulations a lot easier and more credible. It’s not clear whether you wnat to simulate “metals, pesticides and other pollutants” in a single model, or are interested in using a modelling framework. We have developed versions of the INCA model for most of these substances, but have noutride to build a single integrated model to simulate everything. You could, in principle, build such a model if you were prepared to simulate a generic compound with
(i) the potential to behave in a hydrophobic or hydrophilic manner (giving you some ability to simulate legacy POPs, current use pesticides, PFASs and metals)
(ii) the potential to change chemical properties (needed to e.g. simulate production of breakdown products or redox mediated changes in behaviour)
(iii) coupled sediment, organic carbon and water movement tracking.
In theory, you could do this with an open source model such as SWAT, or a commercial tol such as the DHI EcoLab. We made some progress towards this in INCA (see Nizzetto et al. 2016) butit gets really complicated, really quickly.
Martyn
Nizzetto, L., Butterfield, D., Futter, M., Lin, Y., Allan, I., & Larssen, T. (2016). Assessment of contaminant fate in catchments using a novel integrated hydrobiogeochemical-multimedia fate model. Science of the Total Environment, 544, 553-563.
- Badges
- Science topic
- Similar topics
- Computer Science and Engineering
- Software