Source and Ecological Risk Characteristics of PAHs in Sediments from Qinhuai River and Xuanwu Lake, Nanjing, China

Table 2

Mean PAHs concentrations (ng/g), range in surface sediments from Qinhuai River during various seasons.

PAHs (rings)	Autumn		Winter		Spring		Summer
	Mean	Range	Mean	Range	Mean	Range	Mean	Range
Nap (2)		74.3–1486.8		69.0–272.5		0–903.0		0–785.1
Ace (3)		0–379.9		0–34.0		11.0–1145.2		0–126.7
Flu (3)		0.9–529.5		72.5–211.9		23.0–248.7		7.9–67.6
Phe (3)		71.3–1853.8		83.0–752.6		36–1787.7		0–488.8
Ant (3)		28.1–814.9		12.6–284.3		18.5–653.2		3.6–105.1
Fla (4)		0–293.7		0–88.5		0–219.7		0–32.6
Pyr (4)		0–35.7		0–32.3		0–199.9		0–178
BaA (4)		28.2–815.7		25.9–267.5		22.4–271.1		33.2–581.6
Chr (4)		91.6–1,625.6		27.6–267.9		19.7–519.4		0–810.9
BbF (5)		200.1–1,102.2		0–726.0		92.8–2213		32.1–846.1
BkF (5)		12.1–141.9		33.2–231.6		7.6–680.8		6.5–170.2
BaP (5)		17.3–396.6		67.8–492.6		21.1–1,225.1		10.1–112.2
DahA (5)		48.4–552.8		0–300.0		2.1–1,162.9		23.4–465.8
BghiP(6)		49.9–806.6		158.0–647.5		0–2,154.9		36.4–352.6
∑PAHs		2,041.2–9,323.5		796.2–4,269.3		1,416.4–10,470.0		387–2,446.4
∑LMWPAHs		183.9–3,957.6		250.7–1,396.9		679.8–2,752.2		65.8–925.5
∑HMWPAHs		608.8–5,365.8		545.5–2,909.9		394.1–7,717.8		257.3–2,142.7