Bonds Jane A S, Greer Mike J, Fritz Bradley K, Hoffmann W Clint
College of Engineering Science Technology and Agriculture, John A. Mulrennan Sr. Public Health Entomology Research and Education Center, Adulticide Application and Evaluation Section, Florida A&M University, Panama City, FL 32605, USA.
J Am Mosq Control Assoc. 2009 Dec;25(4):474-9. doi: 10.2987/09-5882.1.
This article compares the collection characteristics of a new rotating impactor Florida Latham Bonds (FLB) sampler for ultrafine aerosols with a mimic of the industry standard (Hock-type). The volume and droplet-size distribution collected by the rotating impactors were measured via spectroscopy and microscopy. The rotary impactors were colocated with an isokinetic air sampler for a total volume flux measurement and a laser diffraction instrument for droplet-size distribution measurement. The measured volumetric flux and droplet-size distribution collection efficiencies were compared across 3 wind speeds (1, 1.8, and 3.5 m/sec). The FLB sampler had higher flux collection efficiencies than the Hock-type sampler. The FLB sampler collected 89%, 87%, and 98% of the total volume available per unit area at 1, 1.8, and 3.5 m/sec, respectively, whereas the Hock-type sampler collected 68%, 19%, and 21% of across the same wind speeds. Changes in wind speed had less impact and resulted in less data variability for the FLB sampler.
本文将一种用于超细气溶胶的新型旋转撞击器——佛罗里达莱瑟姆粘结剂（FLB）采样器的采集特性与一种行业标准模拟装置（霍克型）进行了比较。通过光谱学和显微镜测量旋转撞击器采集的体积和液滴尺寸分布。旋转撞击器与等速空气采样器并置进行总体积通量测量，与激光衍射仪并置进行液滴尺寸分布测量。在3种风速（1米/秒、1.8米/秒和3.5米/秒）下比较了测量的体积通量和液滴尺寸分布采集效率。FLB采样器的通量采集效率高于霍克型采样器。在1米/秒、1.8米/秒和3.5米/秒时，FLB采样器分别采集了每单位面积可用总体积的89%、87%和98%，而霍克型采样器在相同风速下分别采集了68%、19%和21%。风速变化对FLB采样器的影响较小，数据变异性也较小。
