Assessment and Implication of PAHs and Compound-Specific δ13C Compositions in a Dated Marine Sediment Core from Daya Bay, China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area and Sampling Strategy
2.2. Treatment and Separation Procedures
2.2.1. Extraction of PAHs
2.2.2. Determination of GC-C-IRMS
2.3. Quality Control
3. Results and Discussion
3.1. General Trends of PAHs in Sediment Core
3.2. Molecular Ratios of Specific Aromatic Compounds and Possible Sources
3.3. Molecular and Isotopic Compositions (Compound-Specific δ13C Compositions)
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sea Area | Rang | Mean | Reference |
---|---|---|---|
Sediment core W2(2) from Daya Bay | 99.3~676.5 | 303.6 | In the study |
Sediment from Daya Bay | 115~1134 | - | [41,46,47] |
Surfance sediment from Daya Bay | 42.5~158.2 | 126.2 | [45] |
Surfance sediment in Dapeng’ao bay | 237.3~1139 | - | [44] |
256.7~744.1 | - | ||
Sediment from Daya Bay | 140~491 | 310 ± 92.4 | [55] |
Sediment from Dapeng Bay | 216.6~1314 | 572.5 | [42] |
Sediment core from Daya Bay | 77.0~306.0 | 192.0 | [40,45] |
Sediments of Shenzhen nearshore including Daya Bay | 227.5~3897 | 870. 6 | [43] |
Sediment core No. 10 from Daya Bay | 118.1~319.9 | 210.2 | [45] |
Sediment from the Lingdingyang of the Pearl River estuary | 143.9~522.7 | 287.05 | [53] |
Sediment from thePearl River Estuary | 144.0~1289 | 430 ± 216 | [55] |
126.1~3829 | 563.5 | [54] | |
Sediment from the northern South China sea | 274~335 | 304 | [55] |
Sediment from the middle area in South China Sea | 276.4~792.2 | 430.6 | [56] |
Molecular Ratios | Phe/Ant | Antt/(Ant + Phe) | Fluo/(Fluo + Pyr) | BgP/InP | InP/(InP + BaP) | BaA/Chr | BaA/(BaA + Chr) | |
---|---|---|---|---|---|---|---|---|
possible sources | >10 or 15 petrogenic source | <0.10 petrogenic source | <0.50 petroleum | Ratio >1 is relatively high in automotive exhaust particles | <0.20 petroleum | ≤0.40 Petrogenic origin | <0.20 petroleum | |
0.4–0.5 * liquid fossil fuel combustion | 0.2–0.5 * liquid fossil fuel combustion | 0.2–0.35 ** petroleum combustion | ||||||
<10 pyrolytic sources | >0.10 pyrolytic source | >0.50 grass, wood, and coal combustion | >0.50 grass, wood, and coal combustion | >0.90 pyrolytic origin | >0.35 grass, wood, and coal combustion | |||
our study | Mean Range # | 9.19 0.02–74.4 | 0.48 0.01–0.98 | 0.27 0.13–0.47 | 4.57 0.06–28.6 | 0.57 0.03–0.94 | 7.96 0.36–69.1 | 0.55 0.27–0.99 |
reference | [64,69,72,73] | [68,72,73] | [74,75] | [72] | [64,76] | [71,72] |
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Lu, Y.; Li, D.; Wang, X.; Cao, J.; Huang, S.; Zhou, P. Assessment and Implication of PAHs and Compound-Specific δ13C Compositions in a Dated Marine Sediment Core from Daya Bay, China. Int. J. Environ. Res. Public Health 2022, 19, 4527. https://doi.org/10.3390/ijerph19084527
Lu Y, Li D, Wang X, Cao J, Huang S, Zhou P. Assessment and Implication of PAHs and Compound-Specific δ13C Compositions in a Dated Marine Sediment Core from Daya Bay, China. International Journal of Environmental Research and Public Health. 2022; 19(8):4527. https://doi.org/10.3390/ijerph19084527
Chicago/Turabian StyleLu, Yan, Dongmei Li, Xiaoyun Wang, Jianping Cao, Sheng Huang, and Peng Zhou. 2022. "Assessment and Implication of PAHs and Compound-Specific δ13C Compositions in a Dated Marine Sediment Core from Daya Bay, China" International Journal of Environmental Research and Public Health 19, no. 8: 4527. https://doi.org/10.3390/ijerph19084527