Usage
PEC_sw_drift(rate, applications = 1, water_depth = 30, drift_percentages = NULL, drift_data = "JKI", crop = "Ackerbau", distances = c(1, 5, 10, 20), rate_units = "g/ha", PEC_units = "µg/L")
Arguments
- rate
- Application rate in units specified below
- applications
- Number of applications for selection of drift percentile
- water_depth
- Depth of the water body in cm
- drift_percentages
- Percentage drift values for which to calculate PECsw.
'drift_data' and 'distances' if not NULL.
- drift_data
- Source of drift percentage data
- crop
- Crop name (use German names for JKI data), defaults to "Ackerbau"
- distances
- The distances in m for which to get PEC values
- rate_units
- Defaults to g/ha
- PEC_units
- Requested units for the calculated PEC. Only µg/L currently supported
Value
The predicted concentration in surface water
Description
This is a basic, vectorised form of a simple calculation of a contaminant
concentration in surface water based on complete, instantaneous mixing
with input via spray drift.
Examples
PEC_sw_drift(100)
1 m 5 m 10 m 20 m
0.92333333 0.19000000 0.09666667 0.05000000