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Assessing the Workplace Environmental Performance of Organotin Stabilizers Used at PVC Processing Facilities

机译:评估PVC加工设施的有机锡稳定剂的工作场所环境表现

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摘要

In addressing environmental performance of plastics,all phases of the lifecycle,including the workplace,should be examined.Organotin compounds are used extensively in the PVC industry as heat stabilizers,and it is important to determine that they can,and are being used safely.This paper evaluates the implications for workplace safety from studies related to dermal exposure from inadvertent skin contact and inhalation exposure from vapors.For vapors workplace exposure monitoring studies were conducted to measure organotin levels at a variety of PVC processing facilities.The results show that worker exposure for all but one instance was at safe levels,sufficiently below the TLV.In one case,where air levels barely exceeded the TLV,the use of appropriate personal protective equipment attenuated the exposure to a safe level.There were no incidents of over exposure.To evaluate dermal exposure we assessed dermal transmission rates of organotins using an in-vitro system,comparing human cadaver skin with rat skin.The organotin stabilizers penetrated skin more slowly than the chlorides,and human skin was less permeable than rat skin.These results are discussed in light of their support for worker safety.
机译:在寻址塑料的环境性能方面,应检查包括工作场所的生命周期的所有阶段。多糖素化合物在PVC工业中广泛使用,作为热稳定剂,重要的是确定它们可以安全地使用,并安全使用。本文评估了从无意的皮肤接触和吸入蒸汽的真皮暴露有关的研究的影响。对于蒸气,工作场所的接触监测研究是为了测量各种PVC加工设施的有机锡水平。结果表明了工人暴露对于所有情况而言,只有一个实例处于安全水平,足够低于TLV.IN,其中空气水平几乎没有超过TLV,使用适当的个人防护设备衰减暴露于安全水平。没有暴露事件。评估皮肤暴露,我们使用体外系统评估有机汀的真皮传输速率,比较人类尸体皮肤与大鼠皮肤。有机锡稳定剂比氯化物更慢地穿透皮肤,而人体皮肤比大鼠皮肤更少渗透。这些结果是根据他们对工人安全的支持而讨论的。

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