Table 1. Nicotine concentrations measured in the stock exposure medium and whole ragworm tissue following 96 h exposure to smoked cigarette filter toxicants in seawater, and 96 h and 28 d exposure to smoked cigarette filter microfibres in sediment.

Filters L−1	Nicotine (ng ml−1, ng g−1)			Nicotine (ng g−1 tissue )			BCFaqu, BCFsed			Nicotine:Cotinine ratio
	Leachates	Sediment		Leachates	Sediment		Leachates	Sediment		Leachates	Sediment
	96 h	96 h	28 d	96 h	96 h	28 d	96 h	96 h	28 d	96 h	96 h	28 d
0	5.5	0	0	0	0	0	0	0	0	0	0	0
0.5	23.5	787	350	1901	186	41	80.89	0.24	0.12	57.6	0	0
1	62.5	1399	971	4912	374	129	78.59	0.27	0.13	29.6	0	0
2	172	3124	1759	10193	766	211	59.26	0.25	0.12	71.3	76.6	0
4	235.5	5287	3743	38072	1318	672	161.66	0.25	0.18	134.1	54.9	67.2
8	694	11159	6964	119654	3629	854	172.41	0.33	0.12	792.4	62.6	61

BCF_aqu = bioconcentration factor from seawater, BCF_sed = bioconcentration factor from sediment.