Table 3: Levels of some chlorinated insecticides in delta lakes (ng g-1 wet weight)^a.

Location/year	Fish species	∑DDTs	% p,p`-DDT	Lindane	HCB	PCBs	Reference
Manzala
1982	Mugil cephalicus	21.1	16.3	0.1	0.19	-	Badawy and El-Dib [129]
	Mugil cephalicus	16	55.4	1.07	6.94	-
	Tilapia sp.	18.5	55.85	0.59	3.59	-
	Mean	18.5	42.52	0.58	3.57	-
1990	Mugil cephalicus	15.7	69	2.81	3.28	-	Abou-Donia [130]
	Tilapia sp.	23.2	53	1.93	3.06	-
	Moran labrex (karous)	21.4	33	2.13	3.04	-
	Moran labrex	16.8	51.7	0.37	3.12	-
	Mean	28.7	51.7	1.81	3.13	-
1992	Clarias anguillaris (catfish)	23.3	0.3	0.19	0.17	3.4	UNEP [123]
	Clarias anguillaris	19.1	ND	0.26	0.19	6.4
	Tilapia sp.	62.1	0.7	2.3	0.71	13.2
	Anguilla anguilla (eel)	34.8	0.3	0.92	0.36	7.6
	Mean	34.8	0.4	0.87	0.36	7.7
1995	Clarias anguillaris	47.1	3.2	1.57	0.73	7.4	Badawy and Wahaab [131]
	Tilapia sp.	18.4	1.9	1.26	0.45	6.5
	Mugil cephalicus	25.4	3.7	0.76	ND	10.1
	Anguilla anguilla	56.4	2.6	2.3	1.2	11.2
	Mean	36.8	2.8	1.47	0.6	8.8
IDKU
1982	Mugil cephalicus	24.8	38.6	2.6	8.23	-	Badawy and El-Dib [129]
	Tilapia sp.	40.2	35.1	4.8	12.72	-
	Mean	32.5	36.9	3.7	10.48	-
1990	Mugil cephalicus	18.67	58	2.8	3.28	-	Abou-Donia [130]
	Tilapia sp.	13.19	53	1.93	3.06	-
	Moran laberx (karous)	26.2	27.1	2.13	3.04	-
	Mean	19.35	46.2	2.47	3.15	-
1991	Tilapia sp.	9.03	0.7	0.91	0.16	-	UNEP [123]
Maruit
1982	Clarias anguillaris (catfish)	17.6	40.3	ND	3.9	-	Badawy and El-Dib [129]
	Tilapia sp.	25.4	14	4.5	8.5	-
	Mean	21.5	27.2	2.25	6.2	-
1990	Tilapia sp.	8.4	0	0.44	4.9	-
	Moran laberx (karous)	11.08	5.4	0.36	2.35	-
	Mean	9.74	2.7	0.4	3.63	-
1991	Tilapia sp.	2.97	ND	0.7	0.29	-	UNEP [123]
Permissible limit (mg kg^-1)		2		0.65	0.28	1.3

ND = Not detactable; ^aAdapted from Badawy [132].