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Airborne organophosphate pesticides drift in Mediterranean climate: The importance of secondary drift

Published on Feb 1, 2016in Atmospheric Environment4.01
· DOI :10.1016/j.atmosenv.2015.12.003
Ohad Zivan3
Estimated H-index: 3
(Technion – Israel Institute of Technology),
M. Segal-Rosenheimer9
Estimated H-index: 9
(ARC: Ames Research Center),
Yael Dubowski17
Estimated H-index: 17
(Technion – Israel Institute of Technology)
Abstract
Abstract Pesticide application is a short-term air-pollution episode with near and far field effects due to atmospheric drift. In order to better evaluate resulting air concentrations in nearby communities following pesticide application, measurements of airborne pesticides were conducted at ∼70 m from field edge. This was done following three different application events of the organophosphate pesticide Chlorpyrifos in a persimmon orchard. Complementary information on larger spatial scale was obtained using CALPUFF modeling in which application and meteorological data was used to better evaluate dispersion patterns. Measurements indicated high airborne concentrations during application hours (few μg m −3 for 8 h average), which dropped to tens of ng m −3 in the following days. Measured atmospheric concentrations show that secondary drift (i.e., post-application drift) involves significant loads of pesticides and hence should not be ignored in exposure considerations. Furthermore, CALPUFF modeling revealed the complex dispersion pattern when weak winds prevailed, and showed that during the 24 h after application air concentrations reached levels above the hourly Texas effect screening level (0.1 μg m −3 ). Interestingly, weak winds on the night after application resulted in a secondary peak in measured and modeled air concentrations. Long exposure time (when secondary drift is considered) and concentrations measured following such common air-assisted orchard application, suggest pesticide drift may have health repercussions that are currently unknown, and emphasize the need for further epidemiological studies.
  • References (41)
  • Citations (12)
References41
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#2Alberto Barausse (UNIPD: University of Padua)H-Index: 12
Last.Raffaello Cossu (UNIPD: University of Padua)H-Index: 23
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#1Per Løfstrøm (AU: Aarhus University)H-Index: 13
#2Marianne Bruus (AU: Aarhus University)H-Index: 4
Last.Poul Astrup (DTU: Technical University of Denmark)H-Index: 14
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#1Huiling cui (TUT: Taiyuan University of Technology)H-Index: 1
#2Rentai YaoH-Index: 1
Last.jinming Yang (TUT: Taiyuan University of Technology)H-Index: 1
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#1Marianne Bruus (AU: Aarhus University)H-Index: 4
#2Jes J. Rasmussen (AU: Aarhus University)H-Index: 18
Last.Peter Wiberg-Larsen (AU: Aarhus University)H-Index: 14
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#1Coraline Mattei (AMU: Aix-Marseille University)H-Index: 2
#2Henri Wortham (AMU: Aix-Marseille University)H-Index: 25
Last.Etienne Quivet (AMU: Aix-Marseille University)H-Index: 13
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#1Coraline Mattei (AMU: Aix-Marseille University)H-Index: 2
#2Henri Wortham (AMU: Aix-Marseille University)H-Index: 25
Last.Etienne Quivet (AMU: Aix-Marseille University)H-Index: 13
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#1Marine Désert (AMU: Aix-Marseille University)H-Index: 1
#2Sylvain Ravier (AMU: Aix-Marseille University)H-Index: 8
Last.Etienne Quivet (AMU: Aix-Marseille University)H-Index: 13
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#1Romualda Bejger (West Pomeranian University of Technology)H-Index: 3
#2Lilla Mielnik (West Pomeranian University of Technology)H-Index: 3
Last.Paweł Nicia (H.I., S.I.: University of Agriculture, Faisalabad)H-Index: 4
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#1Coraline Mattei (AMU: Aix-Marseille University)H-Index: 2
#2Henri Wortham (AMU: Aix-Marseille University)H-Index: 25
Last.Etienne Quivet (AMU: Aix-Marseille University)H-Index: 13
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#1Oz Kira (Technion – Israel Institute of Technology)H-Index: 5
#2Yael Dubowski (Technion – Israel Institute of Technology)H-Index: 17
Last.Raphael Linker (Technion – Israel Institute of Technology)H-Index: 19
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