persam worked-examples: application by soil …...2019/05/06 · example 4 (annual crops, soil...
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PERSAM Worked-examples:
Application by soil incorporation
Michele Ghidotti, Laima Abromaityte
EFSA Trainees
June 4-5th 2019
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EFSA (European Food Safety Authority), 2017. EFSA Guidance Document for predicting environmental concentrations of active
substances of plant protection products and transformation products of these active substances in soil. EFSA Journal
2017;15(10):4982, 115 pp. https://doi.org/10.2903/j.efsa.2017.4982
Example 4 (annual crops, soil incorporation)
1) Evenly distributed incorporation of granules over a certain soil depth
2) Placing of granules at a certain soil depth
PERSAM worked-examples:Application by soil incorporation
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Evenly distributed incorporation of granules over a certain soil depth
Crop: Maize
Number of applications: 1 application (1 kg/ha)
Type of application: Granules evenly incorporated (mixed) over a soil depth (zinc) of 10 cm
Time of application: 2 weeks before planting of maize (30 days before emergence)
Substance properties:DegT50 (geomean): 250 daysKom (geomean): 1000 (L/kg)Molar mass: 300 g/molWater solubility: 0.1 mg/L
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Evenly distributed incorporation of granules over a certain soil depth
PERSAM Graphical shell
Create a new project
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Evenly distributed incorporation of granules over a certain soil depth
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Evenly distributed incorporation of granules over a certain soil depth
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Tier 1. Evenly distributed incorporation of granules over a certain soil depth
At Tier 1 soil incorporation is not taken into accountSame assumptions for Example 1 and 2
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Regulatory zones
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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PECs selection
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Crop type selection: at Tier 1 only 2 options available
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Scenario parameterisation
Ecotoxicological averaging depth in soil and pore water (zeco)Time weighted average (tavg)
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Pesticide input parameters
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Pesticide input parameters
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Pesticide input parametersDegradation pathway (no metabolites considered)
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Application schemeSingle application
At Tier 1 crop interception is not taken into account
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Fixed parameters1 value (average) for each regulatory zone is considered at Tier 1
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Model outputResults of Tier 1
Export results in pdf/word format
Tier 1. Evenly distributed incorporation of granules over a certain soil depth
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Scenario parameterisation at Tier 2 and Tier 3A is unified whilst creating the PERSAM transfer file for higher tier assessment
Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Single EU Countries are available for modelling at Tier 2
Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Crop selection at Tier 2: FOCUS crops (annual and permanent) are available
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
At Tier 2 different types of application can be selected
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Scenario parameterisation
Incorporation depth (zinc) can be set at Tier 2
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Pesticide input parametersDegradation pathway (no metabolites considered)
Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Application scheme
At Tier 2 crop interception is taken into account by setting the appropriate crop development stage (BBCH code) from EFSA Guidance, 2014.
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Fraction of organicmatter
Fraction of clay pH
Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Fixed parameters
At Tier 2 spatially distributed soil maps (1 km x 1 km pixel) are provided for soil properties
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
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Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Model outputResults of Tier 2
Generation of transfer file for Tier 3A assessment
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Central Europe
Tier 2. Evenly distributed incorporation of granules over a certain soil depth
Model output: results of Tier 21) Spatially distributed PECs in soil for all regulatory zones
2) Frequency distributions of PECs in soil3) Tables with TWA concentrations for single zones (Central)
1) 2)
3)
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Crop: Maize
Number of applications: 1 application (1 kg/ha)
Type of application: Granules are placed at a soil depth (zinc) of 10 cm
Time of application: 2 weeks before planting of maize (30 days before emergence)
Substance properties:DegT50 (geomean): 250 daysKom (geomean): 1000 (L/kg)Molar mass: 300 g/molWater solubility: 0.1 mg/L
Tier 2. Placing of granules at a certain soil depth
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Tier 2. Placing of granules at a certain soil depth
Scenario parameterisation
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Central Europe
Tier 2. Placing of granules at a certain soil depth
Model output: results of Tier 21) Spatially distributed PECs in soil for all regulatory zones
2) Frequency distributions of PECs in soil3) Tables with TWA concentrations for single zones (Central)
1) 2)
3)
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TIER 3A modelling is performed with PEARL and PELMO
FOCUS PELMO (soil beta) will be used in the following worked-examples:
1) Evenly distributed incorporation of granules over a certain soil depth
2) Placing of granules at a certain soil depth
Higher tier assessment (Tier 3A) with FOCUS PELMO
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PERSAM generates a transfer file for Tier 3A assessment with PEARL and PELMO
*------------------------------------------------------------------* PERSAM Transfer file* Generated on 27/05/2019_16:10*-------------------------------------------------------------------North RegZone Regulatory zone (options: North, Centre, South)TotSoil TypeOfEPType of endpoint (options: TotSoil, PoreWat)3844_1745 Location X/Y coordinatesP SubstanceAss Substance assessed (options: P, M1A, M1B, M1C, M1D, M2A, M2B, M2C, M2D)1.00 fRef (-) Refinement factor for final PEC16 PERSAMCropNr PERSAM crop numberCoarse SoilTypeIDSoil texture (options: Coarse, Medium, MediumFine, Fine, VeryFine, Organic)0.12 CntOmSca (kg.kg-1) Topsoil organic matter content4.40 pHInp (-) Topsoil pH647.00 Prc (mm) Mean annual precipitation8.00 Temp (C) Mean annual temperaturePesticide_AName_P Substance name-99 Name_M1A ------II-------99 Name_M1B ------II-------99 Name_M1C ------II-------99 Name_M1D ------II-------99 Name_M2A ------II-------99 Name_M2B ------II-------99 Name_M2C ------II-------99 Name_M2D ------II------300.00 MolMas_P (g.mol-1) Molar mass-99 MolMas_M1A (g.mol-1) ----II-----99 MolMas_M1B (g.mol-1) ----II-----99 MolMas_M1C (g.mol-1) ----II-----99 MolMas_M1D (g.mol-1) ----II-----99 MolMas_M2A (g.mol-1) ----II-----99 MolMas_M2B (g.mol-1) ----II-----99 MolMas_M2C (g.mol-1) ----II-----99 MolMas_M2D (g.mol-1) ----II-----99 P -> M1A (-) Molar formation fraction-99 P -> M1B (-) -----------II------------99 P -> M1C (-) -----------II------------99 P -> M1D (-) -----------II------------99 M1A -> M2A (-) -----------II------------99 M1A -> M2B (-) -----------II------------99 M1A -> M2C (-) -----------II------------99 M1A -> M2D (-) -----------II------------99 M1B -> M2A (-) -----------II------------99 M1B -> M2B (-) -----------II------------99 M1B -> M2C (-) -----------II------------99 M1B -> M2D (-) -----------II------------99 M1C -> M2A (-) -----------II------------99 M1C -> M2B (-) -----------II------------99 M1C -> M2C (-) -----------II------------99 M1C -> M2D (-) -----------II------------99 M1D -> M2A (-) -----------II------------99 M1D -> M2B (-) -----------II------------99 M1D -> M2C (-) -----------II------------99 M1D -> M2D (-) -----------II-----------250.00 DT50Ref_P (d) Half-life time-99 DT50Ref_M1A (d) ------II-------99 DT50Ref_M1B (d) ------II-------99 DT50Ref_M1C (d) ------II-------99 DT50Ref_M1D (d) ------II-------99 DT50Ref_M2A (d) ------II-------99 DT50Ref_M2B (d) ------II-------99 DT50Ref_M2C (d) ------II-------99 DT50Ref_M2D (d) ------II------65.40 MolEntTra_P (kJ.mol-1) Molar activation energy-99 MolEntTra_M1A (kJ.mol-1) ----------II------------99 MolEntTra_M1B (kJ.mol-1) ----------II------------99 MolEntTra_M1C (kJ.mol-1) ----------II------------99 MolEntTra_M1D (kJ.mol-1) ----------II------------99 MolEntTra_M2A (kJ.mol-1) ----------II------------99 MolEntTra_M2B (kJ.mol-1) ----------II------------99 MolEntTra_M2C (kJ.mol-1) ----------II------------99 MolEntTra_M2D (kJ.mol-1) ----------II-----------1000.00 KomEql_P (L.kg-1) Coef. eql. sorption on org. matter-99 KomEql_M1A (L.kg-1) ----------------II-----------------99 KomEql_M1B (L.kg-1) ----------------II-----------------99 KomEql_M1C (L.kg-1) ----------------II-----------------99 KomEql_M1D (L.kg-1) ----------------II-----------------99 KomEql_M2A (L.kg-1) ----------------II-----------------99 KomEql_M2B (L.kg-1) ----------------II-----------------99 KomEql_M2C (L.kg-1) ---------------II-----------------99 -99 KomEql_M2D (L.kg-1) ----------------II----------------0 ZEADTop (m) Top of the evaluation depth0.50 ZEADBot (m) Bottom of the evaluation depth1 DelTimEvt (a) Repeat interval of events (options: 1, 2, 3)0 IntPostApp (d) Time interval for post-application PEC (days after last application)AppSolTil OptApp Application (options: AppCrpUsr, AppSolInj, AppSolTil)10.00 ZApp (m) Application depth (incorporation or injection)1 NrApp (-) Number of applications events* Application table (day - rate (kg.ha-1) - crop interception (fraction of dosage, dimensionless))
table Applications0 1.00 0end_table
PELMO
PERSAM Transfer file (.ptf)
Higher tier assessment (Tier 3A)
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PERSAM transfer files for selected scenarios have to be copied in PELMO folder
(Case 1 & 2, North, Centre, South, PECsoil, PECpore water)
Higher tier assessment (Tier 3A) with FOCUS PELMO
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PELMO Graphical shell
Higher tier assessment (Tier 3A) with FOCUS PELMO
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Scenario refinement with PELMO
Further substance properties are required at Tier 3 ATime of application is needed at Tier 3 A
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
PECs in soil for single scenarios
Central Europe, soil incorporation
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Time weighted average (TWA) concentrations (mg/kg) over 100 days Plateau concentration
Concentrations post-application
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Results of Tier 3 with PELMO
Summary of all the modelled scenarios
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Summary of all the modelled scenarios
PECs in soil and pore water for North, Central and South Europe following soil incorporation and placingat certain soil depth
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Graphical output
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Graphical output
![Page 50: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/50.jpg)
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Graphical output
![Page 51: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/51.jpg)
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Display model parameters
![Page 52: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/52.jpg)
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Tier 3A with PELMO: Evenly distributed incorporation of granules over a certain soil depth
Display model parameters
![Page 53: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/53.jpg)
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Case 2 : placing at certain soil depth
Input parameters
Tier 3A with PELMO: Placing of granules at a certain soil depth
![Page 54: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/54.jpg)
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Case 2 : placing at certain soil depth
Results
Tier 3A with PELMO: Placing of granules at a certain soil depth
![Page 55: PERSAM Worked-examples: Application by soil …...2019/05/06 · Example 4 (annual crops, soil incorporation) 1) Evenly distributed incorporation of granules over a certain soil depth](https://reader036.vdocuments.us/reader036/viewer/2022062505/5ede35caad6a402d6669850a/html5/thumbnails/55.jpg)
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