PEC_soil_product. pfm 0.2-4

Usage

PEC_soil_product(product, rate, rate_units = "L/ha", interception = 0, mixing_depth = 5, tillage_depth = 20, interval = 365, PEC_units = "mg/kg", scenarios = "EFSA_2015")

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Arguments

product: An object of class pp
rate: Application rate in units specified below
rate_units: Defaults to g/ha
interception: The fraction of the application rate that does not reach the soil
mixing_depth: Mixing depth in cm
tillage_depth: Periodic (see interval) deeper mixing in cm
interval: Period of the deeper mixing, defaults to 365, which is a year if -rate units are in days
PEC_units: Requested units for the calculated PEC. Only mg/kg currently supported

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Source

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EFSA Panel on Plant Protection Products and their Residues (2012) -Scientific Opinion on the science behind the guidance for scenario selection -and scenario parameterisation for predicting environmental concentrations -of plant protection products in soil. EFSA Journal 10(2) 2562, -doi:10.2903/j.efsa.2012.2562

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EFSA (European Food Safety Authority) (2015) -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 13(4) 4093 -doi:10.2903/j.efsa.2015.4093

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Value

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-A data frame with compound names, and initial, background (plateau minimum) - and long term maximum predicted concentrations in soil -

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Description

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Calculates long term accumulation PEC values. Assumes that the complete load to soil during the -time specified by 'interval' (typically 365 days) is dosed at once. As in the PPR panel opinion -cited below (PPR panel 2012), only temperature correction using the Arrhenius equation is performed. -By default, PEC values for the scenarios as defined in the EFSA guidance -(2015, p. 13) are calculated.

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Author