purexposure: purexposure: A package for working with CA Pesticide Use...

In leighseverson/purexposure: Pull and Calculate Exposure to CA Pesticide Use Registry Records

Description

The purexposure package provides functions to pull data from California's Pesticide Use Registry (PUR), as well as to calculate exposure to and visualize active ingredients present in applied pesticides. Functions are categorized into find_*, pull_*, calculate_*, plot_*, and write_*. These are the functions from each category:

find_* functions

find_ functions help with searches of PUR chemical, county, and product codes.

• find_chemical_codes: Pull active ingredient chemical codes from PUR Chemical Lookup Tables.

• find_counties: Find California county codes or names.

• find_location_county: Find the counties of addresses or coordinates.

• find_product_name: Find Pesticide Product names and registration numbers from PUR Product Lookup Tables.

pull_* functions

pull_ functions facilitate downloading data from the CA Department of Pesticide Regulation's website.

• pull_raw_pur: Pull raw PUR data by counties and years.

• pull_clean_pur: Pull cleaned PUR data by counties, years, and active ingredients.

• pull_product_table: Pull PUR Product Tables for a vector of years.

• pull_spdf: Pull section or township-level SpatialPolygonsDataFrame for a county.

calculate_* function

The calculate_exposure function calculates exposure (in kg/m^2) to applied pesticides for a given location, buffer extending from that location, time period, and active ingredients.

plot_* functions

plot_ functions help with visualizations of application.

• plot_county_application: Plot pesticide application by county, summed by section or township.

• plot_county_locations: Plot county locations in California.

• plot_exposure: Plot exposure to applied pesticides at a particular location.

• plot_application_timeseries: Plot time series of active ingredients in applied pesticides.

• plot_locations_exposure: Plot exposure for multiple locations in a given county.

write_* function

The write_exposure function calculates exposure for multiple locaitons and writes out files (exposure values, meta data, and plots) to a specified directory.

leighseverson/purexposure documentation built on Aug. 13, 2021, 6:34 p.m.