Levels, Distribution, and Health Risks of Polycyclic Aromatic Hydrocarbons in Four Freshwater Edible Fish Species from the Beijing Market

Table 3

Residual levels of PAHs (wet weight) (ng·g⁻¹) in freshwater fish samples.

PAHs	Species	Brain	Bladder	Liver	Roe	Muscle
∑PAHs	Crucian carp	19.77±4.71	13.63	2.28±1.65	14.90±9.33	9.40±1.94
	Bighead carp	16.10±9.59	7.52±1.65	7.63±2.63	—^b	6.26±0.62
	Carp	6.65±1.71	15.46±2.33	6.74±1.82	7.84±2.28	6.34±1.63
	Grass carp	16.50±4.80	11.01±5.22	12.57±2.47	—	6.13±0.62
LMWPAHs	Crucian carp	17.81±5.74	12.00	2.01±1.41	13.79±8.81	9.04±1.78
	Bighead carp	15.24±9.01	6.42±0.97	7.29±2.53	—	5.87±0.47
	Carp	6.32±1.70	14.21±2.16	6.35±1.78	7.06±2.12	5.87±1.53
	Grass carp	15.58±4.34	10.22±4.78	12.14±2.44	—	5.89±0.73
MMWPAHs	Crucian carp	1.93±1.12	1.59	0.27±0.25	1.06±0.53	0.37±0.16
	Bighead carp	0.84±0.59	1.08±0.77	0.33±0.11	—	0.38±0.17
	Carp	0.33±0.017	1.23±0.78	0.38±0.081	0.76±0.19	0.46±0.093
	Grass carp	0.91±0.54	0.80±0.51	0.41±0.096	—	0.25±0.17
HMWPAHs	Crucian carp	0.033±0.031	0.03	0.005±0.01	0.027±0.015	0.0025±0.005
	Bighead carp	0.033±0.017	0.018±0.015	0.01±0.00	—	0.0025±0.005
	Carp	0.0025±0.005	0.015±0.013	0.01±0.0082	0.028±0.005	0.01±0.00
	Grass carp	0.008±0.0084	0.00±0.00	0.013±0.0082	—	0.0033±0.0052

^aLevels of PAHs are presented as mean ± standard deviation.
^b“—” means no samples were collected.