Table 6.

BTs concentration in various environmental matrices

Reference	Location	Units	Value
Soils
Breedveld et al. (2002)	Oslo Airport, Fornebu, Norway	μg/kg d.w.	100–1700 Mean 500
McNeill and Cancilla (2009)	Three USA airports	μg/kg d.w.	<3.1–4.1
Sediments
Breedveld et al. (2002)	Oslo Airport, Fornebu, Norway	μg/kg d.w.	<100–13,000 Mean 4500
Zhang et al. (2011)	Songhua River, China	μg/kg d.w.	0.385
	Saginaw and Detroit rivers, USA	μg/kg d.w.	0.424–33.4 Mean 9.43
Groundwater
Breedveld et al. (2002)	Oslo Airport, Fornebu, Norway	mg/m3	1.2–1100 Mean 371
	Oslo Airport, Gardermoen, Norway	mg/m3	0.11–20 Mean 4.75
Kahle et al. (2009)	Canton of Zurich, Switzerland	mg/m3	0.016–0.077 Mean 0.047
Loos et al. (2010)	Europe	mg/m3	<0.001–1.032 Mean 0.024
Liu et al. (2011b)	Next to a wastewater treatment plant, Adelaide, Australia	mg/m3	0.280 ± 0.018
Reh et al. 2013	Karstified aquifer, Germany	mg/m3	0.0049–3.2418 Median 0.0434
Surface Water
Breedveld et al. (2002)	Oslo Airport, Fornebu, Norway	mg/m3	1.5–33 Mean 9.0
Weiss and Reemtsma (2005)	Lake Tegel, Berlin region, Germany	mg/m3	0.9
Giger et al. (2006)	Rivers in Zurich District, Switzerland	mg/m3	0.06–6.3 Mean 0.94
	Lake in Zurich District, Switzerland	mg/m3	0.02–1.2 Mean 0.55
Vousta et al. (2006)	Glatt river, Switzerland	mg/m3	0.636–3.69
Kahle et al. (2009)	Lakes in the Midland region, Switzerland	mg/m3	0.011–0.917 Mean 0.211
Kiss and Fries (2009)	Main, Hengstbach, and Hegbach rivers, Germany	mg/m3	0.038–1.47 Mean 0.35
Nodler et al. (2011)	Leine River, upstream of a wastewater treatment plant, Germany	mg/m3	0.034–0.176 Mean 0.095
	Leine River, downstream of a wastewater treatment plant, Germany	mg/m3	0.248–0.845 Mean 0.510
Heeb et al. (2012)	Haihe River, China	mg/m3	0.5–4.5 Median 1.09
Esteban et al. (2014)	Manzanares and Jarama rivers, Spain	mg/m3	0.097–1.184