Table 3.

Measurement and analysis for field survey

No	Measurement item	Measurement and analysis	Others
1	CO, CO2	Non-dispersive direct-reading method (TSI 7745, USA)	Whenever cooking new food (241 data collected)
2	Airborne particles (PM1, PM 2.5, PM10)	Grimm portable laser aerosol spectrometer and dust monitor model 1.108, Germany	Automatically measured and collected data at grill area in cooking room during the cooking time
3	TVOC (Total Volatile organic compounds including benzene)	NIOSH MAM 1501 (SKC Cat no. 226-01, flow rate 0.2l/min, GC)	2 places (pot and grill area, comparing group), 1place (outside building, control group)
4	Formaldehyde	NIOSH, MAM 2016 (SKC Cat.no 226-119, flow rate 0.5l/min, HPLC)	2 places (pot and grill area, comparing group), 1place (outside building, control group)
5	PAHs (Polycyclic aromatic hydrocarbons)	NIOSH, MAM 5515(FILTER + SORBENT (2-μm, 37-mm PTFE + washed XAD-2, 100 mg/50 mg, flow rate 2l/min, GC)	2 places (pot and grill area, comparing group), 1place (outside building, control group)