Effectiveness of Charcoal Adsorbent in Flue Gas Filters for PCB Reduction in Smoke from Hospital Incinerators

Table 6

Indicator PCB concentrations in the chimney (in ng/m³).

	Mean concentration (µg/L)		Volume of extract	Amount(µg) in 5 ml		X/12051.86 (µg/m^3)		ng/m^3
	Before filtration	After filtration	(ml)	Before	After	Before	After	Before	After
PCB 18	1.06 ± 0.50	0.85 ± 0.39	5	0.0053	0.00425	4.39766E-07	3.52643E-07	0.00044	0.00035264
PCB 28	2.75 ± 1.41	2.49 ± 1.41	5	0.013725	0.01245	1.13883E-06	1.03304E-06	0.001139	0.00103304
PCB 31	2.59 ± 1.40	2.50 ± 1.27	5	0.01295	0.0125	1.07452E-06	1.03718E-06	0.001075	0.00103718
PCB 44	0.54 ± 0.23	0.47 ± 0.18	5	0.0027	0.00235	2.24032E-07	1.94991E-07	0.000224	0.00019499
PCB 52	0.35 ± 0.10	0.48 ± 0.18	5	0.00175	0.00235	1.45206E-07	1.94991E-07	0.000145	0.0001991
PCB 101	0.3 ± 0.11	0.27 ± 0.10	5	0.0015	0.00135	1.24462E-07	1.12016E-07	0.000124	0.00011202
PCB 118	1.38 ± 0.12	1.07 ± 0.50	5	0.0069	0.00535	5.72526E-07	4.43915E-07	0.000573	0.00044391
PCB 138	1.47 ± 0.55	1.21 ± 0.56	5	0.00735	0.00605	6.09864E-07	5.01997E-07	0.00061	0.000502
PCB 149	1.46 ± 0.55	1.20 ± 0.56	5	0.0073	0.006	6.05716E-07	4.97848E-07	0.000606	0.00049785
PCB 153	3.11 ± 1.52	2.69 ± 1.43	5	0.01555	0.0135	1.29026E-06	1.12016E-06	0.00129	0.00112016
PCB 170	0.2 ± 0.13	0.12 ± 0.11	5	0.001	0.0006	8.29747E-08	4.97848E-08	8.3E-05	4.9785E-05
PCB 180	0.19 ± 0.12	0.09 ± 0.12	5	0.00095	0.00045	7.8826E-08	3.7339E-08	7.88E-05	3.734E-05