ECA 14: Sampling strategies for volatile organic compounds (VOCs) in indoor air

Strategies for sampling chemical substances in indoor air have been discussed in a previous report in this series (Report No 6). This report gives more specific guidance for the development of sampling strategies for volatile organic compounds (VOCs). The report is divided into three sections: 
(a) General considerations which highlight the sampling objectives of indoor VOC measurements, the numerous sources of VOCs and their emission characteristics, the dynamic character of indoor pollution by VOCs, and the interpretation of VOC measurements in relation to health and comfort. These considerations are a prerequisite for the development of sampling strategies. 
(b) Discussion of the elements of sampling strategies for VOCs. These elements include the type and number of objects (buildings) and spaces in which air samples should be taken, the types and status of sources in these spaces, the environmental conditions before and during sampling, the position of the sampler in the selected spaces, the sampling duration, the time and frequency, sampling and analytical methods, and quality control and assurance. The common choices of the above-mentioned elements are discussed. 
(c) Outline of sampling strategies, i.e. selections of the abovementioned elements, for the more frequent sampling objectives.