% Recoveries of the internal standard- mirex, added to core sediment sections from Bao Shan (Site B), Bai Long Gang (site C), and a selected range of priority pollutants added to core sediment originating from Dong Hai Nong Chang (site E).

Table 1: % Recoveries of the internal standard- mirex, added to core sediment sections from Bao Shan (Site B), Bai Long Gang (site C), and a selected range of priority pollutants added to core sediment originating from Dong Hai Nong Chang (site E).

Core sediment Sample, Depth, Cm	% Recovery of mirex	Priority pollutant recovered	% Recovery^a
Site B		Site E
35	105.6	105.6	90
35	107.6	Anthracene	68
35	85.3	1,3-Dichlorobenzene	125
Site C		1,2-Dichlorobenzene	150
1	84^a	Diethyl phthalate	116
3	84	Hexachlorobenzene	82
5	134	Pyrene	132
7	111
9	100
13	146
17	68
25	38
53	103

^asingle point determination.