A novel environmental indicator for monitoring of pesticides.
The identification of an indicator for monitoring pesticides is a very effective analytical approach because it allows one to schedule and simplify the analytical routine. In this study, a new indicator has been designed, which has to be able to define a scale of priorities in the pesticides monitoring. A starting equation was developed involving the escaping tendency of a given substance from a phase (based on the Mackay model I level). The reliability of the indicator was tested by application to a model system, consisting of a defined and limited area, choosing water as matrix over a period of 6 years. A group of marker compounds was also defined to implement the predictive efficacy of the indicator. The results obtained by modeling were compared to those obtained by experimentation of the same model system. The indicator was subsequently and appropriately modified creating a new equation, including a kinetic factor, which considers the environmental degradation processes. The effect of the rectified indicator was consistent with the sales data list of compounds, when applied to the markers. The indicator developed in this study, tested as a model on specific area-phase-period (Province of Siena, water phase, 2000-2006), is applicable to any other area-phase-period, adjusting the partition value of the Mackay model for the case under study.
Luchi
Federico
F
Department of Chemistry, University of Siena, Viale Aldo Moro n. 2, 53100 Siena, Italy.
Vigni
Valeria
V
Basosi
Riccardo
R
Busi
Elena
E
D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D007700:Kinetics; D008956:Models, Chemical; D010575:Pesticides / Q000032:analysis*; D018570:Risk Assessment
D004785:Environmental Pollutants; D010575:Pesticides
J AOAC Int. 2006 Jan-Feb;89(1):201-9
16512249
Environ Sci Technol. 1981 Sep 1;15(9):1006-14
22284102
Environ Sci Technol. 1982 Dec 1;16(12):654A-60A
22646890