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ABSTRACT
This review focuses on the sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in China and the worldwide. We provide a global image of sedimentary record of PAHs in different regions, including their contents, vertical profiles, and possible sources. Generally, historical PAHs recorded in China, dominated by biomass burning and domestic coal combustion, are moderate on the global scale with an upward trend while elevated levels of historical PAHs are usually found in developed countries with a downward trend. This review ends with some concerns about historical PAHs in sediments and some directions deserved further efforts.
KEYWORDS:
Abbreviations
| ACE | = | Acenaphthene |
| ACY | = | Acenaphthylene |
| ANT | = | Anthracene |
| BaA | = | Benzo[a]anthracene |
| BaP | = | Benz[a]pyrene |
| BbF | = | Benzo[b]fluoranthe |
| BBG | = | Beibu Gulf |
| BeP | = | Benz[e]pyrene |
| BghiP | = | Benzo[ghi]perylene |
| BHS | = | Bohai Sea |
| BjF | = | Benzo[j]fluoranthene |
| BkF | = | Benzo[k]fluoranthene |
| BP | = | Biphenyl |
| BYD | = | Lake Baiyangdian |
| CH | = | Lake Chaohu |
| CHH | = | Lake Chenghai |
| CHRY | = | Chrysene |
| COR | = | Coronene |
| CSCIA | = | Compound-specific carbon isotope analysis |
| DB | = | Deep Bay |
| DBA | = | Dibenz[ah]anthracene |
| DC | = | Lake Dianchi |
| DMNAP | = | Dimethylnaphthalene |
| DMP | = | Dimethylphenanthrene |
| DR | = | Diagnostic ratios |
| DYB | = | Daya Bay |
| ECS | = | East China Sea |
| EH | = | Lake Erhai |
| FLU | = | Fluorine |
| FLUO | = | Fluoranthene |
| HF | = | Lake Hongfeng |
| HLB | = | Hailing Bay |
| HZB | = | Haizhou Bay |
| INP | = | Indeno[1,2,3-cd]pyrene |
| LRE | = | Liao River Estuary |
| LZB | = | Laizhou Bay |
| MNAP | = | Methylnaphthalene |
| MPHEN | = | Methylphenanthrene |
| NAP | = | Naphthalene |
| NS | = | Lake Nansi |
| PAHs | = | Polycyclic aromatic hydrocarbons |
| PERY | = | Perylene |
| PHEN | = | Phenanthrene |
| PRE | = | Pearl River Estuary |
| PY | = | Lake Poyang |
| PYR | = | Pyrene |
| QH | = | Lake Qinghai |
| RET | = | Retene |
| SCS | = | South China Sea |
| SG | = | Lake Sugan |
| SHLW | = | Maar Lake Sihailongwan |
| TH | = | Lake Taihu |
| TMNAP | = | Trimethylnaphthalene |
| YaRE | = | Yangtze River Estuary |
| YeRE | = | Yellow River Estuary |
| YS | = | Yellow Sea |
| ∑HMW | = | sum of four to six-rings PAHs |
| ∑LMW | = | sum of two to three-rings PAHs |
| ∑PAH16 (considered as the standard suite for PAHs in this review) | = | sum of sixteen US EPA priority PAHs |
Funding
This work is financially supported by the National Key Research and Development Project by MOST of China (No. 2016YFA0601003), the Chinese NSF projects (No. 41403113 and No. U1302231), and Science and Technology Project of Guizhou Province ([2015]2001).