Multi-elemental compound-specific isotope analysis of pesticides for source identification and monitoring of degradation in soil: a review

The transfer of pesticides from agricultural soils to food and drinking water is a major health issue. There are actually few robust methods identify, characterize quantify the dissipation in complex media such as soils, waters sediments. Here, we review multi-elemental compound-specific isotope analysis study sources transformations soils. First, discuss advanced extraction purification techniques for Then, analytical reliable measurements stable composition presented. We report unique dataset 547 isotopic compositions 71 active molecules produced by various pesticide manufacturers, following isotopes: 13C, 15N, 37Cl, 2H. also 270 fractionation values 33 compounds, which might help elucidate mechanisms transformation biodegradation, photodegradation other abiotic processes. Compounds include legacy atrazine, lindane, dichlorodiphenyltrichloroethane, chlordecone organophosphorus compounds. Transformation processes may be identified quantified using Rayleigh concept during reaction.