Table 4.

General information about chemical compounds determined in basement indoor environments

Localization	Determined compounds	Sampling technique	Applied sorption medium	Technique for the separation/liberation of analytes	Final determination technique	Average concentration	Ref.
2 residential basementsa, Massena and Lisbon, NY, USA	Methanol	Dynamic (400-mL, 1-L, and 6-L evacuated stainless steel canisters)	Lack of applied sorption medium	Lack of applied analyte liberation technique—direct injection of gas sample	GC-FID	5839 ± 3800 ppb	Soto-Garcia et al. (2015)
	Pentane					100 ± 61 ppb
	Pentanal					86 ± 53 ppb
	Hexanal					214 ± 176 ppb
74 residences, Detroit, MI, USA	VOCs	Passive	Not mentioned	Thermal desorption	GC-MS	Benzene: 5.88 μg/m3, toluene: 77.30 μg/m3, naphthalene: 65.78 μg/m3, limonene: 21.95 μg/m3	Du et al. (2015)
55 residences, Boston, MA, USA	Formaldehyde	Dynamic	2,4-Dinitro-phenylhydrazine-coated silica cartridges (Waters Corp.)	Ozone scrubbers containing potassium iodide	HPLC-UV(operating at 360 nm)	12 μg/m3	Dodson et al. (2008)
	Acetaldehyde					8.5 μg/m3
	Other VOCs	Dynamic	Triple-bed tube with Carbopach B, Carbopack X, and Carboxen	Thermal desorption	GC-MS	Methylene chloride: 9.5 μg/m3, chloroform: 0.57 μg/m3, trichloroethene: 0.43 μg/m3, tetrachloroethene: 1.7 μg/m3, 1,4-dichlorobenzene: 1.3 μg/m3, 1,3-butadiene: 0.5 μg/m3, MTBE: 8.8 μg/m3, benzene: 3.2 μg/m3, toluene: 21 μg/m3, ethylbenzene: 4.1 μg/m3, m,p-xylene: 12 μg/m3, o-xylene: 4.2 μg/m3, styrene: 1.7 μg/m3, α-pinene: 11 μg/m3, d-limonene: 8.8 μg/m3

^aBasements dedicated to store large fabric bags with blended mixture pellets