Applicability of Optical Particle Counters for Measurement of Airborne Pesticide Spray Drift

Rack-Woo Kim; Se-Woon Hong

doi:10.5389/KSAE.2019.61.5.079

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2019 Vol.61, Issue 5 Preview Page Next Page

Applicability of Optical Particle Counters for Measurement of Airborne Pesticide Spray Drift 공기 중 농약 비산의 측정을 위한 광학 입자 측정기의 적용성 평가

2019. pp. 79-87

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Abstract

With desires for safe food, there is growing concern that pesticide spray drift will expose people, plants, and the environment to pesticide residue and potential negative effects thereof. For highly efficient, safe spray application, technologies for measuring the spray drift should be developed and improved with some urgency. This study investigated the applicability of two optical particle counters (OPCs), which are mostly used to measure airborne particle mass concentration, for measurement of airborne pesticide spray drift. Experiments were conducted in a controlled laboratory and an ash tree orchard to evaluate the handiness and accuracy of two OPCs, OPC 1 and OPC 2. The experimental results indicated that the OPC 1 was better applicable to the measurement of spray drift in the field while the use of the OPC 2 was limited due to its narrow range of measurable droplet sizes. The readings of the OPC 1 produced highly accurate results (R²=0.9637) compared to the actual spray drift. For better application of OPCs, this study suggests the OPCs should be positioned properly to inhale spray droplets of the appropriate size and concentration.

Keywords

Airborne droplet

optical particle counter

pesticide

spray deposition

spray drift

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Information

Publisher :The Korean Society of Agricultural Engineers
Publisher(Ko) :한국농공학회
Journal Title :Journal of Korean Society of Agricultural Engineers
Journal Title(Ko) :한국농공학회논문집
Volume : 61
No :5
Pages :79-87
Received Date : 2019-08-07
Revised Date : 2019-08-21
Accepted Date : 2019-08-22
DOI :https://doi.org/10.5389/KSAE.2019.61.5.079

Journal of Korean Society of Agricultural Engineers ISSN:1738-3692(Print) 2093-7709(Online) 한국농공학회논문집

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REFERENCES