空气清新剂中挥发性有机物的组成及其对室内空气质量的潜在影响

研究调查了广州市各大型超市销售的14个品牌,15种不同香型,共26个盒装空气清新剂中挥发性有机物（VOCs）的成分.通过顶空GC-MS分析获得的结果可以看出各个空气清新剂的成分组成差别较大,即使是相同香型的产品,其中的化合物种类和百分比浓度都不尽相同.定性出94种化合物,包括烯烃18种,醇类15种,醛类14种,酮类4种,醚类5种,酚类1种,酯类25种及其它化合物12种,其中萜类化合物约占总化合物数量的40%.β-月桂烯、罗勒烯、苧烯、苯乙醇、乙酸苄酯、β-蒎烯、β-水芹烯、伞花烃、1-甲基-4-（1-甲基乙烯基）苯、里拉醇等化合物在各种清新剂中出现频率为100%.空气清新剂中萜类化合物与臭氧反应,可生成二次有机气溶胶,对室内空气质量造成影响.

Volatile organic compounds in air fresheners and their potential impacts on indoor air quality

This study investigated the compositions of volatile organic compounds(VOCs) in typical air fresheners sold on the markets.Selected air fresheners covered 15 odor types from 14 manufacturers.Headspace GC-MS analysis revealed that compositions of air fresheners were quite different even for those of the same odor type.94 VOCs were identified in the air fresheners,including 18 olefins,15 alcohols,14 aldehydes,4 ketones,5 ethers,1 phenol,25 esters and 12 other compounds.Terpenoids accounted for about 40% of the compounds detected.β-Myrcene,ocimene,limonene,phenethylalcohol,benzylacetate,β-pinene,β-phellandre,cymene,1-methy-4-(1-methyl-vinyl)benzene and linalool were found in all air fresheners.These terpenoids contained in the air fresheners,when introduced into indoor environment,might react with ozone to form secondary organic aerosols,and thus have potential impacts on indoor air quality.