For inspiration on plastics and the use in Agriculture/Food, consider two points, also relevant for the FARM community:

1. Concentrations of food contact chemicals (which enter the food web through chemical leaching from for example single use plastic packaging of foods) that have leached into food are generally at least 100 times higher than concentrations of pesticide residues.

2. While fewer than 1,000 pesticides are in commercial use and chemical-analytical methods are available for all of them and their main metabolites, plastics contain more than 16,000 chemicals, most of which remain insufficiently studied for their health and broader environmental impacts.

Reference: Impacts of food contact chemicals on human health: a consensus statement (Muncke et al., 2020). There is more recent research avalable as is this an emerging field in research.