Table 4.

Emission rates (mg/hr) of gas-phase carbonyl compounds

Compound	Lanju	Bison	Godzilla	Jumbo	Raid
Fomaldehyde	0.435 ± 0.035	0.866 ± 0.069	2.69 ± 0.22	4.02 ± 0.32	1.37 ± 0.11
Acetaldehyde	0.657 ± 0.089	1.21 ± 0.16	2.29 ± 0.31	1.81 ± 0.25	2.88 ± 0.39
Acrolein	0.255 ± 0.035	0.521 ± 0.072	0.303 ± 0.042	0.078 ± 0.011	0.481 ± 0.066
Acetone	0.200 ± 0.036	0.531 ± 0.095	0.794 ± 0.142	0.450 ± 0.081	1.01 ± 0.18
Propionaldehyde	0.136 ± 0.026	0.189 ± 0.036	0.316 ± 0.060	0.211 ± 0.040	0.404 ± 0.077
Crotonaldehyde	0.141 ± 0.021	0.271 ± 0.040	0.137 ± 0.020	0.077 ± 0.011	0.209 ± 0.031
Butyraldehyde	0.023 ± 0.002	0.064 ± 0.006	0.080 ± 0.008	0.046 ± 0.004	0.096 ± 0.009
Benzaldehyde	0.042 ± 0.004	0.058 ± 0.006	0.057 ± 0.006	0.018 ± 0.002	0.056 ± 0.005
Isovaleraldehyde	0.038 ± 0.005	0.108 ± 0.015	0.313 ± 0.044	0.573 ± 0.080	0.322 ± 0.045
Valeraldehyde	0.084 ± 0.012	0.128 ± 0.018	0.243 ± 0.034	0.292 ± 0.041	0.245 ± 0.034
o-Tolualdehyde	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
m-Yolualdehyde	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
p-Tolualdehyde	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
Hexaldehyde	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
2,5-Dimethylbenzaldehyde	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
Sum of carbonyl
compounds*	2.01 ± 0.27	3.94 ± 0.52	7.22 ± 0.88	7.58 ± 0.84	7.07 ± 0.95

Note: Data are expressed as mean ± SD, or < detection limit if the value is below detection limit; number of repeated tests n=3 for each coil brand; Emission rates were determined at air exchange rate of 2.0 hr⁻.

^*In computing sum of gas-phase carbonyl compounds, all values below detection limits were set at zero.