Distributions and Sources of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils around a Chemical Plant in Shanxi, China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample Collection
2.2. Sample Extraction
2.3. PAHs Analysis
2.4. Quality Control
2.5. Data Analysis
3. Results
3.1. Characteristics of PAHs Concentrations in Surface Soils
3.2. Characteristics of PAHs Component in Surface Soils
3.3. Characteristics of PAHs Concentration in Vertical Distribution
3.4. Characteristics of PAHs Component in Vertical Distribution
3.5. Identification of PAH Sources
3.5.1. Diagnostic Ratio
3.5.2. Principal Component Analysis
4. Discussion
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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PAH Compound | Abbr. | Carcinogenicity Classification | No. of Ring | Agriculture Soils (AS, mg/kg) | Roadside Soils (RS, mg/kg) | Park Green Space Soils (PS, mg/kg) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Range | Mean | Median | Range | Mean | Median | Range | Mean | Median | ||||
Naphthalene | Nap | 2B | 2 | 0.007–4.87 | 1.51 | 1.5 | 1.15–8.93 | 5.17 | 4.7 | 0.337–10.6 | 2.72 | 1.61 |
Acenaphthylene | Acel | 3 | ND-0.022 | 0.006 | 0.003 | 0.11–0.240 | 0.064 | 0.044 | ND-0.109 | 0.027 | 0.016 | |
Acenaphthene | Ace | 3 | ND-0.103 | 0.032 | 0.025 | 0.056–1.79 | 0.412 | 0.263 | 0.015–0.517 | 0.126 | 0.08 | |
Fluorene | Flu | 3 | 0.015–0.399 | 0.104 | 0.077 | 0.405–7.86 | 2.14 | 1.64 | 0.053–2.62 | 0.615 | 0.41 | |
Anthracene | Ant | 3 | 0.332–4.26 | 0.992 | 0.701 | 3.62–23.0 | 9.45 | 8.36 | 0.485–13.1 | 3.69 | 2.84 | |
Phenanthrene | Phe | 3 | 0.009–0.168 | 0.038 | 0.024 | ND-12.9 | 1.37 | 0.435 | 0.016–0.907 | 0.181 | 0.12 | |
Fluoranthene | Fla | 4 | 0.140–2.41 | 0.546 | 0.397 | ND-10.3 | 4.97 | 4.59 | 0.058–6.53 | 1.63 | 1.11 | |
Pyrene | Pyr | 4 | 0.135–2.49 | 0.502 | 0.341 | 0.288–10.2 | 4.72 | 4.58 | 0.007–6.29 | 1.44 | 1.00 | |
Benz [a] anthracene | Baa | B | 4 | 0.071–1.71 | 0.288 | 0.149 | ND-6.02 | 2.51 | 2.43 | ND-1.32 | 0.533 | 0.403 |
Chrysene | Chr | 2B | 4 | 0.190–3.49 | 0.62 | 0.348 | ND-7.96 | 3.54 | 3.74 | 0.216–3.52 | 1.31 | 1.11 |
Benzo [b] fluoranthene | Bbf | 2B | 5 | 1.36–25.5 | 4.44 | 2.52 | ND-39.0 | 3.35 | 0.327 | ND-6.36 | 1.53 | 0.153 |
Benzo [k] fluoranthene | Bkf | 2B | 5 | 0.100–9.90 | 0.985 | 0.229 | ND-19.5 | 8.97 | 10.4 | ND-6.01 | 2.45 | 1.73 |
Benzo [a] pyrene | Bap | B | 5 | 0.232–5.95 | 0.973 | 0.49 | ND-35.3 | 16.1 | 15.8 | 0.435–22.1 | 5.55 | 4.01 |
Dibenz [a,h] anthracene | Daa | B | 5 | 0.150–3.10 | 0.514 | 0.265 | 0.010–2.61 | 0.276 | 0.01 | 0.010–0.299 | 0.045 | 0.01 |
Indeno[1,2,3-cd]pyrene | Ind | 2B | 6 | 0.566–11.6 | 1.83 | 0.927 | 0.087–39.5 | 2.34 | 0.087 | 0.087–2.07 | 0.469 | 0.087 |
Benzo [g,h,i] perylene | Bghip | 6 | 0.007–0.343 | 0.163 | 0.142 | 0.007–0.642 | 0.043 | 0.007 | 0.007 | 0.007 | 0.007 | |
∑16PAHs | 3.87–76.0 | 12.6 | 7.55 | 35.4–116. | 65.5 | 60.7 | 5.93–66.5 | 22.3 | 19.9 | |||
∑BPAHs | 3.22–66.1 | 11.2 | 5.99 | 20.2–94.2 | 42.3 | 39.4 | 3.82–36.4 | 14.6 | 16.8 |
PAHs | Diagnostic Ratio | Sources | Reference |
---|---|---|---|
Ant/(Ant + Phe) | <0.1 | Petroleum | [14] |
>0.1 | Combustion | ||
Fla/(Fla + Pyr) | <0.4 | Petroleum | [34] |
0.4–0.5 | Liquid fossil fuelcombustion | ||
>0.5 | Coal, wood or grass combustion | ||
Baa/(Baa + Chr) | <0.2 | Petroleum | [37] |
0.2–0.35 | Petroleum or combustion | ||
>0.35 | Combustion | ||
Phe/Ant | <10 | Pyrogenic | [40] |
<15 | Petrogenic | ||
Ind/(Ind + Bghip) | <0.2 | Petrogenic | [38] |
0.2–0.5 | Fuel combustion(vehicle and crude oil) | ||
>0.5 | Grass/coal/wood combustion | ||
Bap/(Bap + Chr) | <0.2 | Petroleum | [39,40] |
0.2–0.35 | Coal, wood or grass combustion | ||
>0.35 | Vehicular combustion | ||
HMW/LMW PAHs | >1 | Pyrogenic | [41] |
<1 | Petrogenic | [42] | |
Fla/Pyr | <1 | Petrogenic | [43] |
>1 | Pyrogenic | [39] | |
Bap/Bghip | >0.6 | Traffic | [40] |
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Jiao, H.; Wang, Q.; Zhao, N.; Jin, B.; Zhuang, X.; Bai, Z. Distributions and Sources of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils around a Chemical Plant in Shanxi, China. Int. J. Environ. Res. Public Health 2017, 14, 1198. https://doi.org/10.3390/ijerph14101198
Jiao H, Wang Q, Zhao N, Jin B, Zhuang X, Bai Z. Distributions and Sources of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils around a Chemical Plant in Shanxi, China. International Journal of Environmental Research and Public Health. 2017; 14(10):1198. https://doi.org/10.3390/ijerph14101198
Chicago/Turabian StyleJiao, Haihua, Qi Wang, Nana Zhao, Bo Jin, Xuliang Zhuang, and Zhihui Bai. 2017. "Distributions and Sources of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils around a Chemical Plant in Shanxi, China" International Journal of Environmental Research and Public Health 14, no. 10: 1198. https://doi.org/10.3390/ijerph14101198