Abstract
In this study, a method for measuring acrylamide in indoor air was investigated, wherein, gaseous acrylamide present in the indoor air was collected in an activated carbon sampler and, extracted with methanol, followed by GC/MS measurements.
In this report, we describe the extraction method, collection efficiency, reproducibility test, storage stability, etc. In order to detect acrylamide present in indoor air, an ultrasonic extraction method was employed, where the extraction time was 10 min and the collection efficiency with one collection tube was 95% or more. The repeatability was 4.6% in relative standard deviation the lower limit of quantification was 11.9 ng/m3(1 L/min x 24 hours, 1440 L sampling). The storage stability of acrylamide in the sampler was observed to be stable for 10 days at room temperature. Consequently, it could be inferred that gaseous acrylamide was not present in the indoor environment of general households. However, 23 ng/m3 of acrylamide was detected when mosquito coils were used indoors, and 116-6133 ng/m3 of acrylamide was detected when people smoked indoors place cigarette.
