Respirable dust concentrations in equine stables. Part 1: Validation of equipment and effect of various management systems
Respirable dust concentrations in equine stables. Part 1: Validation of equipment and effect of various management systems
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DOI：
10.1016/j.rvsc.2006.12.002
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发表时间：
2007-10-01
影响因子：
2.4
通讯作者：
Pirie, R. S.
中科院分区：
文献类型：
--
作者：
Clements, J. M.;Pirie, R. S.
传统的测量动物房中空气粉尘浓度（ADC）的方法包括将粉尘收集到预先称重的过滤器上，允许计算平均值，而不是最大值，ADC。然而，实时连续颗粒监测仪在识别ADC的短时间升高方面是有利的，这在面对相对较低的平均ADC时可能对马的呼吸健康有害。这些监测器以前从未用于测量马马厩的ADC。基于过滤器的采样器与实时连续颗粒监测仪的比较显示，两种设备之间的平均呼吸性粉尘浓度（RDC）测量结果无显著差异（P = 0.079），且一致性良好（>= 95%的点落在差值平均值和差值平均值接近零的两个标准差范围内）。对不同马群管理制度对RDC影响的研究表明，从干草饲料和稻草垫层，到干草饲料和木屑垫层，马群平均呼吸区RDC和最大呼吸区RDC均显著降低（P < 0.05）(平均降低-0.0867 mg/ in 3至0.0260 mg/m(3)；最大降幅分别为-4.0758 mg/m(3)至0.2182 mg/m(3)。(C)2006 Elsevier Ltd版权所有。
Traditional methods of measuring airborne dust concentrations (ADC) in animal housing have included the collection of dust onto pre-weighed filters permitting the calculation of mean, not maximum, ADC. However real-time continuous particle monitors are advantageous in identifying short duration elevations in ADC which may be detrimental to equine respiratory health in the face of a relatively low mean ADC. These monitors have not previously been used to measure ADC in equine stables. Comparisons of a filter-based sampler and a real-time continuous particle monitor revealed no significant difference (P = 0.079) and good agreement (>= 95% of the points fell within two standard deviations of the mean of the differences and the mean of the differences approximated zero) between the devices, with respect to mean respirable dust concentration (RDC) measurements. Investigations of the influence of various equine management systems on RDC revealed that both mean and maximum breathing zone RDC were significantly reduced (P < 0.05) in equine stables by changing the environment from hay feed and straw bedding, to haylage feed and wood shavings bedding (reduction in mean -0.0867 mg/ In 3 to 0.0260 mg/m(3); reduction in maximum -4.0758 mg/m(3) to 0.2182 mg/m(3), respectively). (C)2006 Elsevier Ltd. All rights reserved.