Zhang Q, Jenkins P L
Research Division, California Air Resources Board, Sacramento, CA, USA.
Indoor Air. 2017 Mar;27(2):386-397. doi: 10.1111/ina.12307. Epub 2016 Jun 22.
Ground-level ozone can cause serious adverse health effects and environmental impacts. This study measured ozone emissions and impacts on indoor ozone levels and associated exposures from 17 consumer products and home appliances that could emit ozone either intentionally or as a by-product of their functions. Nine products were found to emit measurable ozone, one up to 6230 ppb at a distance of 5 cm (2 inches). One use of these products increased room ozone concentrations by levels up to 106 ppb (mean, from an ozone laundry system) and personal exposure concentrations of the user by 12-424 ppb (mean). Multiple cycles of use of one fruit and vegetable washer increased personal exposure concentrations by an average of 2550 ppb, over 28 times higher than the level of the 1-h California Ambient Air Quality Standard for ozone (0.09 ppm). Ozone emission rates ranged from 1.6 mg/h for a refrigerator air purifier to 15.4 mg/h for a fruit and vegetable washer. The use of some products was estimated to contribute up to 87% of total daily exposures to ozone. The results show that the use of some products may result in potential health impacts.
地面臭氧会对健康产生严重的不利影响，并对环境造成冲击。本研究测量了17种可能有意排放臭氧或作为其功能副产品排放臭氧的消费品和家用电器的臭氧排放量，以及对室内臭氧水平和相关暴露量的影响。研究发现，有9种产品会排放可测量的臭氧，其中一种在距离5厘米（2英寸）处的臭氧排放量高达6230 ppb。使用这些产品会使室内臭氧浓度升高，最高可达106 ppb（平均而言，来自臭氧洗衣系统），使用者的个人暴露浓度会升高12 - 4天4 ppb（平均）。一台果蔬清洗机多次使用会使个人暴露浓度平均升高2550 ppb，比加利福尼亚州1小时臭氧环境空气质量标准（0.09 ppm）高出28倍多。臭氧排放速率范围从冰箱空气净化器的1.6毫克/小时到果蔬清洗机的15.4毫克/小时。据估计，使用某些产品导致的臭氧每日总暴露量高达87%。结果表明，使用某些产品可能会对健康产生潜在影响。
