Development of a Data Set of Pesticide Dissipation Rates in/on Various Plant Matrices for the Pesticide Properties Database (PPDB)

Abstract

Data relating to the rate at which pesticide active substances dissipate on or within various plant matrices are important for a range of different risk assessments; however, despite the importance of this data, dissipation rates are not included in the most common online data resources. Databases have been collated in the past, but these tend not to be maintained or regularly updated. The purpose of the exercise described herein was to collate a new database in a format compatible with the main online pesticide database resource (the Pesticide Properties Database, PPDB), to validate this database in line with the Pesticide Properties Database protocols and thus ensure that the data is maintained and updated in future. Data was collated using a systematic review approach using several scientific databases. Collated literature was subjected to a quality assessment, and then data was extracted into an MS Excel spreadsheet. The outcome of the study is a database based on data collated from 1390 published articles covering over 400 pesticides and over 200 crops across a wide variety of different matrices (leaves, fruits, seeds etc.) for pesticide residues on the crop surface, as well as residues absorbed within the plant material. This data is now fully incorporated into the PPDB.Data Set: available as a supplementary file: "Plant dissipation data August 2017.xlxs". Data Set License:This data set was made available under a CC-BY license.Keywords: pesticide dissipation; risk assessment; environmental fate SummaryData relating to the rate at which pesticide active substances dissipate or decay on or within various plant matrices (e.g., leaves, stems, seeds, fruits) are important for a range of different risk assessments. For example, dissipation rates can be used to determine when workers can safely reenter fields and glasshouses following a pesticide application [1], and may also be used to estimate the potential exposure of individuals who may come in contact with, for example, sprayed sports turf or golf greens [2,3]. Dissipation rates also have application in consumer safety. For example, these values are used in calculations for predicting residue concentrations in harvested produce and for determining the time interval needed between crop spraying and harvesting or potential processing/consumption in order to minimise residue concentrations [4,5]. Dissipation rates also have value when considering the potential risk to non-target and beneficial organisms (e.g., pollinators) that may forage or otherwise come in contact with a pesticide treated plant, as well as informing on how long the chemical is likely to offer satisfactory pest control before it decays [6][7][8]. As a consequence, plant matrix half-lives are often an important input parameter into various risk assessment models [9][10][11][12].In this context, dissipation rate is defined as the rate at which the pesticide active substance disappears from the part of the plant measured due to the combined effects of different processes Preprints (www...

Development and validation of the SPEC model for simulating the fate and transport of pesticide applied to Japanese upland agricultural soil

“…When no data were available, the inputs were calibrated. 21,24,28,29) The curve number value used in the simulation was extracted from the tables provided by the SCS Engineering Division and is appropriate for a 5% slope with bare soil (no crop residue) and a soil with moderate infiltration rate. 19) Previous analysis indicated that the curve number method was applicable for the andisol soil plot scale with bare soil.…”