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")

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

Source

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

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

Value

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

Description

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.

Author