An investigation of selected monoaromatic hydrocarbons released from the surface of polystyrene lids used in coffee-to-go cups

The paper describes in detail an analytical procedure that provides the opportunity to obtain reliable analytical information on the emission rates of selected compounds from the monoaromatic hydrocarbons released from 8 types of polystyrene lids used in disposable coffee-to-go cups. Samples were conditioned at 40 °C and 80 °C using the microscale stationary emission chamber (μ-CTE™ 250). The average total amounts of detected monoaromatic hydrocarbons released from lids made of white, black and brown polystyrene were, respectively: (i) 1253 ± 401 ng/g, 994 ± 74 ng/g, and 573 ± 85 ng/g at 40 °C; (ii) 3219 ± 1865 ng/g, 2140 ± 238 ng/g, and 1306 ± 174 ng/g at 80 °C.