Wind tunnel evaluation of several tracer and collection techniques for the measurement of spray drift.
In the history of pesticide drift measuring techniques, different tracers and a lot of different collection techniques have been used. At the start of a new Flemish project 'Protecting the Flemish environment against drift - The importance of drift-reducing techniques', wind tunnel tests have been executed to select the most efficient tracer and collection technique. As tracer types a fluorescent tracer Renaissance W15, 2 different chelates, a NaCl-solution and a fungicide Tolylfluanide were used. 2 different collection techniques were tested: drains incorporated in the wind tunnel floor filled with filter paper and filled with cloths. The recovery of the different tracers combined with the 2 collection materials was calculated. The advantages and disadvantages of the tracers and collection materials are enumerated in this article.
Brusselman
E
E
Department of Crop Protection, University Ghent Coupure links 653, BE-9000 Gent, Belgium.
Van Driessen
K
K
Steurbaut
W
W
Gabriels
D
D
Cornelis
W
W
Nuyttens
D
D
Sonck
B
B
Baetens
K
K
Nicolai
B
B
Verboven
P
P
Ramon
H
H
D000393:Air Pollutants / Q000032:analysis*; D001530:Belgium; D005456:Fluorescent Dyes; D005659:Fungicides, Industrial / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D012996:Solutions
D000393:Air Pollutants; D005456:Fluorescent Dyes; D005659:Fungicides, Industrial; D010573:Pesticide Residues; D010575:Pesticides; D012996:Solutions