Agricultural countermeasures in the management of a post-accidental situation

Renaud, Philippe; Maubert, H.

doi:10.1016/s0265-931x(96)00012-4

Cited by 13 publications

(2 citation statements)

References 21 publications

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“…After the incident, field crops grown in the area affected by deposited pollutants may have to be discarded because they are unsuitable for human consumption, while soil remediation may be needed to allow future cultivation [2]. Since accidents are rare, usually there is no dense monitoring network in place so that decision making has to rely on information initially obtained from a small sample.…”

Section: Introductionmentioning

confidence: 99%

Where and When Should Sensors Move? Sampling Using the Expected Value of Information

Bruin

Ballari

Bregt

2012

Sensors

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In case of an environmental accident, initially available data are often insufficient for properly managing the situation. In this paper, new sensor observations are iteratively added to an initial sample by maximising the global expected value of information of the points for decision making. This is equivalent to minimizing the aggregated expected misclassification costs over the study area. The method considers measurement error and different costs for class omissions and false class commissions. Constraints imposed by a mobile sensor web are accounted for using cost distances to decide which sensor should move to the next sample location. The method is demonstrated using synthetic examples of static and dynamic phenomena. This allowed computation of the true misclassification costs and comparison with other sampling approaches. The probability of local contamination levels being above a given critical threshold were computed by indicator kriging. In the case of multiple sensors being relocated simultaneously, a genetic algorithm was used to find sets of suitable new measurement locations. Otherwise, all grid nodes were searched exhaustively, which is computationally demanding. In terms of true misclassification costs, the method outperformed random sampling and sampling based on minimisation of the kriging variance.

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Section: Introductionmentioning

confidence: 99%

Where and When Should Sensors Move? Sampling Using the Expected Value of Information

Bruin

Ballari

Bregt

2012

Sensors

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“…Various remediation options have been compared for agricultural lands (Shaw et al, 1992;Segal, 1993;Melin et al, 1996;Renaud and Maubert, 1997) and for forest ecosystems (Davydchuk, 1997;Shaw et al, 2001) severely affected by 137 Cs deposits (Belli et al, 1995;Belli and Tikhomirov, 1996). Countermeasures can also be based on the selection of crops which exhibit smaller radionuclide uptake Voigt et al, 2000), on food processing or selecting for non-food crops such that the products from the land are radiologically acceptable (Alexakhin, 1993;Segal, 1993;GOPA, 1996).…”

Section: Introductionmentioning

confidence: 99%

Radiocaesium soil-to-wood transfer in commercial willow short rotation coppice on contaminated farm land

Gommers

Gäfvert

Smolders

et al. 2005

Journal of Environmental Radioactivity

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Strontium: Radionuclides

Guillén¹,

Baeza²,

Salas³

2005

Encyclopedia of Inorganic Chemistry

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Strontium has several radioactive isotopes, with 90 Sr being the most important in the environment. This radionuclide dispersed worldwide as a consequence of the atmospheric nuclear weapon tests in the 1960s, and is locally enhanced owing to the accidents involving radioactive material. 90 Sr is a pure β‐emitter and it may be detected by several detection techniques (gas‐flow proportional, liquid scintillation, Cerenkov counting, and ICP‐MS), after an appropriate radiochemical separation. The environmental behavior of radiostrontium is governed by its chemical similarities to calcium. It is usually associated with the mobile and bioavailable fractions in soils, and with the low MW fraction in aquatic ecosystems. The potential human exposure to radiostrontium is mainly due to the ingestion of food, milk and cereals being the two major sources. This exposure can be reduced to some extent by the addition of calcium fertilizers to minimize the soil‐to‐plant transfer of radiostrontium, and by increasing cattle calcium intake to decrease the 90 Sr content in milk.

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Agricultural countermeasures in the management of a post-accidental situation

Cited by 13 publications

References 21 publications

Where and When Should Sensors Move? Sampling Using the Expected Value of Information

Where and When Should Sensors Move? Sampling Using the Expected Value of Information

Radiocaesium soil-to-wood transfer in commercial willow short rotation coppice on contaminated farm land

Strontium: Radionuclides

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