Bruno P, Caselli M, de Gennaro G, Iacobellis S, Tutino M
Dipartimento di Chimica, Università degli Studi di Bari, Bari, Italy.
Indoor Air. 2008 Jun;18(3):250-6. doi: 10.1111/j.1600-0668.2008.00528.x. Epub 2008 Apr 21.
A weekly monitoring campaign of volatile organic compounds (VOC), with single sampling of 24 h, was carried out in non-residential indoor environments such as libraries, pharmacies, offices, gymnasiums, etc., in order to evaluate the VOC concentrations to which people are exposed. Moreover, an outdoor sample was coupled to each indoor site to point out the influence of indoor sources. They were sampled with Radiello diffusive samplers for thermal desorption and analyzed by GC-MS. As already described in other papers, the VOC levels of most of the indoor sites were higher than that observed in the corresponding outdoor sites. For example, some sites showed a level of pollution that is ten times higher than their corresponding outdoor site. The monitored environments that had higher concentrations of the investigated VOC were the pharmacies, a newspaper stand, a copy center, and the coffee shops. Analysis of the weekly average concentrations of each pollutant and the use of literature allowed pointing out some site-specific characteristics that singled out possible sources of VOC. These results were verified analyzing the indoor-outdoor ratio (I/O) too. Newspaper stands were characterized by very high concentrations of toluene and pharmacies were characterized by high concentrations of aromatic compounds.
Indoor air pollution caused by volatile organic compounds (VOC) might affect human health at home as well as in public and commercial buildings. The main VOC sources in indoor environments are human activities, personal care products, smoking, house cleaning products, building products, and outside pollution. To preserve human health it is necessary to evaluate the average concentrations of VOC to which people are exposed and to identify the main sources of indoor pollution by means of suitable indoor monitoring campaigns in several environments. These investigations allow pointing out the characteristic critical situations of some indoor environments or some other types of environments.
为评估人们接触的挥发性有机化合物（VOC）浓度，在图书馆、药店、办公室、体育馆等非居住室内环境中开展了每周一次的VOC监测活动，每次采样24小时。此外，在每个室内采样点都采集了室外样本，以指出室内污染源的影响。使用Radiello扩散采样器进行热脱附采样，并通过气相色谱-质谱联用仪（GC-MS）进行分析。正如其他论文中所描述的，大多数室内采样点的VOC水平高于相应室外采样点。例如，一些采样点的污染水平比其相应室外采样点高十倍。监测到VOC浓度较高的环境有药店、报摊、复印中心和咖啡店。通过分析每种污染物的每周平均浓度并参考相关文献，指出了一些特定场所的特征，从而确定了可能的VOC来源。通过分析室内外比率（I/O）也验证了这些结果。报摊的甲苯浓度非常高，药店的芳香族化合物浓度较高。
挥发性有机化合物（VOC）引起的室内空气污染可能会影响家庭以及公共和商业建筑中的人类健康。室内环境中主要的VOC来源包括人类活动、个人护理产品、吸烟、家庭清洁产品、建筑产品和室外污染。为保护人类健康，有必要通过在多种环境中开展适当的室内监测活动，评估人们接触的VOC平均浓度，并确定室内污染的主要来源。这些调查有助于指出一些室内环境或其他类型环境的典型关键情况。
