The main factors,effecting determination of the sampling volumn in the monitoring of air and waste gas samples by the enriching sampling method,are discussed in the paper.

• 讨论了富集采样法监测空气和废气样品时确定采样体积的主要因素,给出了富集采样法监测空气和废气样品时采样体积的确定方法和实例。