Table 1. Details of the transfluthrin vapour sampling experiments conducted inside a large cage semi-field system as illustrated in Fig 4 and the analytical results obtained by gas chromatography with mass spectroscopy detection.

Date	Experiment	Sampling period	Temperature range (°C)	Volume of air sampled (m3)	Transfluthrin
					(ng)	(ug/m3)
20/2/2019	Sampling duration of approximately 6 hours, with a second collection tube in tandem to capture any breakthrough from the first.	12:14–18:09	32–30	0.0710	1374	19.35
21/2/2019	Sampling duration of approximately 1 hour	10:22–11:29	28–29	0.0134	170	12.65
21/2/2019	Sampling duration of approximately 1 hour	11:42–12:53	29–30	0.0142	221	15.57
21/2/2019	Sampling duration of approximately 3 hours, with a second collection tube in tandem to capture any breakthrough from the first.	14:11–17:05	28–30	0.0348	630	18.11