有机磷酸酯在南海长棘海星中的生物富集特征及来源解析

doi:10.11978/2022223

Abstract

Abstract:

Organophosphate esters (OPEs) is a new type of organic pollutants in the environment, which are ubiquitous in seawater and organisms in the South China Sea. However, the bioaccumulation characteristics of OPEs in the Acanthaster planci of the South China Sea have not been studied. Therefore, in this study, gas chromatography tandem triple quadrupole mass spectrometry (GC-MS/MS) was used to analyze the bioaccumulation characteristics and sources of 11 typical OPEs in the Acanthaster planci in coral reef regions of the South China Sea. The results showed that chlorinated OPEs were ubiquitous in the tissues of Acanthaster planci, accounting for 95% ~ 98% of the total concentrations of 11 OPEs (∑₁₁OPEs). ∑₁₁OPEs (dry weight) in Acanthaster planci showed significant differences among tissues, and ∑₁₁OPEs in the pyloric caecum (60.2 ~ 1130 ng·g^-1) and stomach (68.2 ~ 1181 ng·g^-1) were significantly higher than those in the epidermis (9.31 ~ 569 ng·g^-1) (p < 0.05), pyloric caecum and stomach played an important role in the accumulation of OPEs in the Acanthaster planci. Tri (1,3-dichloro-2-isopropyl) phosphate (TDCIPP) showed strong bioaccumulation ability in the tissues of Acanthaster planci (The bioconcentration factor BAFs of TDCIPP in the Acanthaster planci exceeds 5000 L·kg^-1). Tris (2-chloroethyl) phosphate (TCEP), tris (2-chloroisopropyl) phosphate (TCIPP), TDCIPP, and Tri-n-butyl phosphate (TNBP) showed a biomagnification effect in the Acanthaster planci, indicating that these four OPEs can be accumulated by feeding on coral. OPEs in the Acanthaster planci of the South China Sea may mainly come from the release of fishery activities, island and reef buildings, and domestic wastes from surrounding countries, and a small part may come from the release of ship transportation.

Key words: organophosphate esters, South China Sea, Acanthaster planci, bioaccumulation, source apportionment

WANG Chenyan, SHI Jingwen, YAN Annan, KANG Yaru, WANG Yuxuan, QIN Suli, HAN Minwei, ZHANG Ruijie, YU Kefu. Bioaccumulation characteristics and source apportionment of organophosphate esters in Acanthaster planci from the South China Sea[J].Journal of Tropical Oceanography, 2023, 42(5): 30-37.

Figures/Tables 7

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References 24

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OPEs	幽门盲囊(n=16)				胃(n=17)				表皮(n=24)
OPEs	检出率/%	范围	平均值± 标准差	中位数	检出率/%	范围	平均值± 标准差	中位数	检出率/%	范围	平均值± 标准差	中位数
TCEP	100	14.6~532	124±150	67.3	100	4.68~153	37.2±41.2	20.2	100	3.32~61.4	17.4±15.3	11.4
TCIPP	100	2.87~552	138±148	87.5	100	6.22~485	78.2±107	45.5	100	5.07~115	33.1±28.9	22.7
TDCIPP	81	nd~319	75.3±105	34.6	88	nd~1086	421±353	397	100	0.19~486	115±147	39.2
TIBP	100	0.50~11.3	4.61±2.65	4.70	82	nd ~5.54	1.74±1.63	1.13	88	nd~2.60	1.11±0.76	1.13
TNBP	88	nd~35.7	15.0±10.2	12.8	76	nd ~4.82	1.45±1.39	1.28	79	nd~2.95	0.92±0.78	0.85
TPTP	0	nd	nd	nd	0	nd	nd	nd	8	nd~0.57	0.04±0.13	nd
THP	0	nd	nd	nd	0	nd	nd	nd	0	nd	nd	nd
TBOEP	13	nd ~5.33	0.46±1.35	nd	18	nd~50.9	4.69±12.6	nd	17	nd~6.73	0.88±2.00	nd
TPHP	0	nd	nd	nd	0	nd	nd	nd	0	nd	nd	nd
TEHP	13	nd~0.40	0.03±0.10	nd	12	nd~2.08	0.24±0.67	nd	8	nd~1.47	0.12±0.39	nd
TMPP	0	nd	nd	nd	0	nd	nd	nd	0	nd	nd	nd
∑₁₁OPEs		60.2~1130	357±298	262		68.2~1181	544±409	487		9.31~569	169±161	97.0

OPEs	珊瑚组织(n=9)				海水(n=2)
OPEs	检出率/%	范围	平均值±标准差	中位数	检出率/%	范围	平均值±标准差	中位数
TCEP	22	nd ~96.5	11.9±30.1	nd	100	1.78~2.60	2.19±0.41	2.19
TCIPP	33	nd ~278	66.9±105	nd	100	2.45~5.61	4.03±1.58	4.03
TDCIPP	11	nd~166	18.5±52.2	nd	100	0.20~0.26	0.23±0.03	0.23
TIBP	78	nd ~87.0	20.6±25.3	19.0	100	0.08~0.21	0.15±0.06	0.15
TNBP	11	nd~4.86	0.54±1.53	nd	100	0.50~0.68	0.59±0.09	0.59
TPTP	0	nd	nd	nd	0	nd	nd	nd
THP	0	nd	nd	nd	0	nd	nd	nd
TBOEP	0	nd	nd	nd	100	0.18~2.38	1.28±1.10	1.28
TPHP	11	nd~4.73	0.53±1.49	nd	100	5.16~8.42	6.79±1.63	6.79
TEHP	11	nd~2.97	0.33±0.93	nd	100	0.05~0.08	0.06±0.02	0.06
TMPP	0	nd	nd	nd	100	0.09~0.27	0.18±0.09	0.18
∑₁₁OPEs		nd~461	119±163	19.8		15.0~16.0	15.5±0.45	15.5

Bioaccumulation characteristics and source apportionment of organophosphate esters in Acanthaster planci from the South China Sea

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