Skip to Main content Skip to Navigation
Journal articles

Stochastic evaluation of annual micropollutant loads and their uncertainties in separate storm sewers

Résumé : This article describes a stochastic method to calculate the annual pollutant loads and its application over several years at the outlet of three catchments drained by separate storm sewers. A stochastic methodology using Monte Carlo simulations is proposed for assessing annual pollutant load, as well as the associated uncertainties, from a few event sampling campaigns and/or continuous turbidity measurements (representative of the total suspended solids concentration (TSS)). Indeed, in the latter case, the proposed method takes into account the correlation between pollutants and TSS. The developed method was applied to data acquired within the French research project BINOGEV^ (innovations for a sustainable management of urban water) at the outlet of three urban catchments drained by separate storm sewers. Ten or so event sampling campaigns for a large range of pollutants (46 pollutants and 2 conventional water quality parameters: TSS and total organic carbon (TOC)) are combined with hundreds of rainfall events for which, at least one among three continuously monitored parameters (rainfall intensity, flow rate, and turbidity) is available. Results obtained for the three catchments show that the annual pollutant loads can be estimated with uncertainties ranging from 10 to 60%, and the added value of turbidity monitoring for lowering the uncertainty is demonstrated. A low inter-annual and inter-site variability of pollutant loads, for many of studied pollutants, is observed with respect to the estimated uncertainties, and can be explained mainly by annual precipitation.
Document type :
Journal articles
Complete list of metadatas

Cited literature [33 references]  Display  Hide  Download

https://hal-enpc.archives-ouvertes.fr/hal-01883198
Contributor : Sylvie Barraud <>
Submitted on : Tuesday, March 31, 2020 - 10:16:11 AM
Last modification on : Tuesday, December 8, 2020 - 10:20:40 AM

File

Hannouche et al_ESPR_VersonPos...
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01883198, version 1

Citation

Ali Hannouche, Ghassan Chebbo, Claude Joannis, Johnny Gasperi, Marie-Christine Gromaire, et al.. Stochastic evaluation of annual micropollutant loads and their uncertainties in separate storm sewers. Environmental Science and Pollution Research, Springer Verlag, 2017, 24 (36), pp.28205 - 28219. ⟨hal-01883198⟩

Share

Metrics

Record views

369

Files downloads

109