Pesticide Collection Methods in Water (1992-2001)

 Pesticide Collection Methods for Different Land Uses (1992-2001)

Completed: October 2024 

Project Description: For this assessment, RStudio libraries sf (simple features) to encode spatial vector data, ggplot2 to plot data, dplyr to manipulate data, geojsonsf to convert simple features, reshape2 to format the data, tidyverse to tidy the data, viridis and pals to maximize color options,  and classInt to choose class intervals. This study examines two different pesticide collection, GCMS, gas chromatography/mass spectrometry analysis, and HPLC, high performance liquid chromatography analysis. These analyses were used to collect data for different pesticide use in U.S. streams across the United States. As seen from the two figures the difference in land use does not show much variance, most likely due to balance of data throughout the different land uses. Although, the HPLC data collection method’s highest pesticide compound across agricultural, urban, and mixed land use is Methomyl, while the GCMS data collection method’s highest pesticide compound across the different land uses is Carbaryl.