Monthly averages of VOC (µg/m³).

April 1996
Site	Benzene	Toluene	Octane	Butylacetate	Ethylbenzene	m,p-xylene	o-xylene	Nonane
V1	3.8	11.2	0.6	1.5	1.6	5.4	1.9	0.4
V2	4.0	11.4	0.5	1.8	1.8	5.8	2.2	0.5
V3	3.3	7.4	0.4	0.5	1.2	3.6	1.5	0.4
V4	12.9	37.1	1.4	0.2	7.1	20.8	9.0	0.8
V5	7.6	20.3	0.8	0.2	3.8	11.0	4.8	0.6
V6	7.4	19.4	0.9	0.2	3.5	10.2	4.4	0.6
V7	7.3	18.5	0.8	0.1	3.2	9.3	4.1	0.6
V8	4.3	10.0	0.5	0.1	1.8	5.1	2.2	0.4
V9	7.7	20.9	0.9	0.2	3.8	11.0	4.8	0.8
V10
August 1996
Site	Benzene	Toluene	Octane	Butylacetate	Ethylbenzene	m,p-xylene	o-xylene	Nonane
V1	3.5	15.4	0.8	4.9	2.0	9.0	2.5	0.4
V2	3.3	14.0	0.7	3.4	2.0	8.5	2.7	0.4
V3	2.8	8.4	0.4	0.4	1.3	4.7	1.8	0.3
V4	14.0	45.7	1.7	0.2	8.2	29.0	11.1	0.7
V5	7.3	22.6	1.0	0.2	3.9	13.6	5.2	0.4
V6	6.6	22.9	0.8	1.0	3.5	12.9	4.7	0.3
V7	6.6	19.4	0.9	0.2	3.3	11.7	4.4	0.4
V8	2.8	8.5	0.4	0.1	1.4	4.7	1.8	0.1
V9	7.4	24.2	0.8	0.2	3.8	13.4	5.2	0.6
V10	2.5	7.9	0.4	0.4	1.4	5.0	1.9	0.8
January 1997
Site	Benzene	Toluene	Octane	Butylacetate	Ethylbenzene	m,p-xylene	o-xylene	Nonane
V1	3.6	9.6	0.4	1.5	1.3	4.7	1.6	0.3
V2	3.5	8.7	0.4	0.7	1.2	4.3	1.5	0.4
V3	3.2	7.0	0.4	0.8	0.9	3.1	1.1	0.3
V4	10.5	30.8	1.0	0.2	4.9	17.1	6.6	0.6
V5	5.7	19.8	0.6	0.1	2.3	7.7	3.5	0.4
V6	5.9	15.5	0.8	0.4	2.3	8.1	3.0	0.6
V7	6.0	15.5	0.7	0.1	2.4	8.1	3.2	0.6
V8	4.3	10.3	0.4	0.1	1.5	5.1	2.0	0.3
V9	8.3	24.9	0.8	0.2	3.6	12.6	4.8	0.6
V10	2.6	5.9	0.4	0.1	0.8	2.4	1.0	0.3
October 1997
Site	Benzene	Toluene	Octane	Butylacetate	Ethylbenzene	m,p-xylene	o-xylene	Nonane
V1	3.5	13.0	0.4	3.8	1.4	5.7	2.0	0.3
V2	3.4	11.0	0.4	1.7	1.3	5.0	1.8	0.4
V3	3.2	7.6	0.3	0.5	1.0	3.6	1.4	0.4
V4	14.2	46.0	1.2	0.4	7.2	24.9	9.7	0.6
V5	7.7	23.8	0.8	0.3	3.5	12.2	4.7	0.4
V6	7.4	22.5	0.6	0.5	3.2	11.1	4.3	0.5
V7	7.7	22.8	0.8	0.2	3.4	11.9	4.6	0.5
V8	2.3	2.9	0.2	0.1	0.3	1.1	0.4	0.3
V9	7.6	23.9	0.6	0.2	3.4	12.1	4.8	0.4
V10	2.9	6.8	0.4	0.3	1.0	3.2	1.3	0.4