McGain F, McAlister S, McGavin A, Story D
Department ofAnaesthesia and Intensive Care, Western Hospital, Melbourne, Victoria, Australia.
Anaesth Intensive Care. 2010 May;38(3):538-44. doi: 10.1177/0310057X1003800320.
We modelled the financial and environmental costs of two commonly used anaesthetic plastic drug trays. We proposed that, compared with single-use trays, reusable trays are less expensive, consume less water and produce less carbon dioxide, and that routinely adding cotton and paper increases financial and environmental costs. We used life cycle assessment to model the financial and environmental costs of reusable and single-use trays. From our life cycle assessment modelling, the reusable tray cost (Australian dollars) $0.23 (95% confidence interval [CI] $0.21 to $0.25) while the single-use tray alone cost $0.47 (price range of $0.42 to $0.52) and the single-use tray with cotton and gauze added was $0.90 (no price range in Melbourne). Production of CO2 was 110 g CO2 (95% CI 98 to 122 g CO2) for the reusable tray, 126 g (95% CI 104 to 151 g) for single-use trays alone (mean difference of 16 g, 95% CI -8 to 40 g) and 204 g CO2 (95% CI 166 to 268 g CO2) for the single-use trays with cotton and paper Water use was 3.1 l (95% CI 2.5 to 3.7 l) for the reusable tray, 10.4 l (95% CI 8.2 to 12.7 l) for the single-use tray and 26.7 l (95% CI 20.5 to 35.4 l) for the single-use tray with cotton and paper Compared with reusable plastic trays, single-use trays alone cost twice as much, produced 15% more CO2 and consumed three times the amount of water Packaging cotton gauze and paper with single-use trays markedly increased the financial, energy and water costs. On both financial and environmental grounds it appears difficult to justify the use of single-use drug trays.
我们对两种常用麻醉塑料药品托盘的财务成本和环境成本进行了建模。我们提出，与一次性托盘相比，可重复使用托盘成本更低，耗水量更少，产生的二氧化碳也更少，并且常规添加棉花和纸张会增加财务成本和环境成本。我们使用生命周期评估对可重复使用托盘和一次性托盘的财务成本和环境成本进行建模。从我们的生命周期评估模型来看，可重复使用托盘成本（澳元）为0.23（95%置信区间[CI]为0.21至0.25），而仅一次性托盘成本为0.47（价格范围为0.42至0.52），添加棉花和纱布的一次性托盘为0.90（墨尔本无价格范围）。可重复使用托盘的二氧化碳产量为110克二氧化碳（95%CI为98至122克二氧化碳），仅一次性托盘为126克（95%CI为104至151克）（平均差异为16克，95%CI为-8至40克），添加棉花和纸张的一次性托盘为204克二氧化碳（95%CI为166至268克二氧化碳）。可重复使用托盘的用水量为3.1升（95%CI为2.5至3.7升），一次性托盘为10.4升（95%CI为8.2至12.7升），添加棉花和纸张的一次性托盘为26.7升（95%CI为20.5至35.4升）。与可重复使用塑料托盘相比，仅一次性托盘成本高出两倍，二氧化碳产量多15%，用水量多两倍。用一次性托盘包装棉花纱布和纸张显著增加了财务、能源和水成本。从财务和环境两方面来看，使用一次性药品托盘似乎很难说得过去。
