Table 3.

GEV parameters and goodness-of-fit (p-value) for average VOC exposures (μg m⁻³) in RIOPA.

VOCs	Top 10% (n = 24)				Top 5% (n = 12)
	Shape	Location	Scale	p-value	Shape	Location	Scale	p-value
Benzene	0.4	9.1	2.4	0.876	30.2	13.6	3.6	0.684
Toluene	1.6	35.8	7.3	0.672	0.6	63.6	19.2	0.829
Ethylbenzene	1.2	6.3	1.7	0.951	0.8	10.6	3.9	0.943
m,p-Xylene	0.8	19.9	6.6	0.963	1.2	28.7	6.9	0.905
o-Xylene	0.9	6.8	2.1	0.900	1.8	10.0	1.3	0.915
MTBE	0.6	36.3	12.5	0.988	0.9	53.0	11.4	0.958
Styrene	1.3	3.9	1.6	0.676	0.9	8.4	2.8	0.895
1,4-DCB	0.5	258.0	188.0	0.991	0.5	516.0	234.9	0.953
TCE	1.1	1.7	0.8	0.987	1.7	2.8	1.0	0.909
PERC	1.0	5.9	2.6	0.882	0.7	11.4	4.2	0.988
Chloroform	0.7	5.5	1.6	0.954	1.1	7.6	1.7	0.943
CTC	0.7	0.9	0.1	0.854	0.7	1.1	0.1	0.991
D-Limonene	0.6	85.8	20.0	0.725	0.4	124.8	19.7	0.890
α-Pinene	1.1	18.0	4.0	0.959	1.7	23.4	6.0	0.797
β-Pinene	0.9	18.2	6.5	0.897	0.1	35.2	13.8	0.905

p-values shown for Anderson–Darling tests.

p-value >0.05 indicating that observations fit to generalized extreme value distributions.