Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India
The distribution and potential sources of 16 polycyclic aromatic hydrocarbons (PAHs) in sediment cores (<63 μm particle size) of the Sundarban mangrove wetland, northeastern coast of Bay of Bengal (India), were investigated by gas chromatography coupled to mass spectrometry. The total concentrations of 16 PAHs (∑16PAHs) ranged from 132 to 2938 ng/g, with a mean of 634 ng/g, and the sum of 10 out of 16 priority PAHs (∑10PAH) varied from 123 to 2441 ng/g, with a mean of 555 ng/g, and the 5 carcinogenic PAHs (benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, and dibenz[a,h]anthracene) accounted for 68–73% of the priority PAHs. Maximum concentrations of the sediment core were obtained at subsoil depth of 12–16 cm. The prevalence of four to six aromatic ring PAHs and cross-plots of specific isomer ratios such as phenanthrene/anthracene, fluoranthene/pyrene, and methylphenanthrenes/phenanthrene suggested the predominance of wood and coal combustion sources, the atmospheric deposition, and surface runoff to be the major transport pathways. A good correlation existed between the benzo[a]pyrene level and the total PAH concentrations, making this compound a potential molecular marker for PAH pollution. Total TEQScarc values calculated for samples varied from 6.95 ng/g TEQScarc to 119 ng/g TEQScarc, with an average of 59 ng/g dry weight TEQScarc. The baseline data can be used for regular monitoring, considering the industrial and agricultural growth around this coastal environment.
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dig-idaea-es-10261-455882012-02-13T23:00:00Z Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India Domínguez, Carmen Sarkar, S. K. Bhattacharya, A. Chatterjee, M. Bhattacharya, B. D. Jover Comas, Eric Albaigés Riera, Joan Bayona Termens, Josep María Alam, Md. A. Satpathy, K. K. The distribution and potential sources of 16 polycyclic aromatic hydrocarbons (PAHs) in sediment cores (<63 μm particle size) of the Sundarban mangrove wetland, northeastern coast of Bay of Bengal (India), were investigated by gas chromatography coupled to mass spectrometry. The total concentrations of 16 PAHs (∑16PAHs) ranged from 132 to 2938 ng/g, with a mean of 634 ng/g, and the sum of 10 out of 16 priority PAHs (∑10PAH) varied from 123 to 2441 ng/g, with a mean of 555 ng/g, and the 5 carcinogenic PAHs (benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, and dibenz[a,h]anthracene) accounted for 68–73% of the priority PAHs. Maximum concentrations of the sediment core were obtained at subsoil depth of 12–16 cm. The prevalence of four to six aromatic ring PAHs and cross-plots of specific isomer ratios such as phenanthrene/anthracene, fluoranthene/pyrene, and methylphenanthrenes/phenanthrene suggested the predominance of wood and coal combustion sources, the atmospheric deposition, and surface runoff to be the major transport pathways. A good correlation existed between the benzo[a]pyrene level and the total PAH concentrations, making this compound a potential molecular marker for PAH pollution. Total TEQScarc values calculated for samples varied from 6.95 ng/g TEQScarc to 119 ng/g TEQScarc, with an average of 59 ng/g dry weight TEQScarc. The baseline data can be used for regular monitoring, considering the industrial and agricultural growth around this coastal environment. The research work was supported by University Grants Commission (UGC), New Delhi, India [(Sanction No UGC/ 199/UPE/07] under the scheme of ‘‘University with Potential for Excellence’’ (Modern Biology Group). One of the authors (Md. A. Alam) is greatly indebted to UGC for awarding him a project fellowship. Peer reviewed 2012-02-14T13:06:50Z 2012-02-14T13:06:50Z 2010 artículo http://purl.org/coar/resource_type/c_6501 Archives of Environmental Contamination and Toxicology 0090-4341 http://hdl.handle.net/10261/45588 10.1007/s00244-009-9444-2 1432-0703 en http://dx.doi.org/10.1007/s00244-009-9444-2 none Springer |
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The distribution and potential sources of 16 polycyclic aromatic hydrocarbons (PAHs) in sediment cores (<63 μm particle size) of the Sundarban mangrove wetland, northeastern coast of Bay of Bengal (India), were investigated by gas chromatography coupled to mass spectrometry. The total concentrations of 16 PAHs (∑16PAHs) ranged from 132 to 2938 ng/g, with a mean of 634 ng/g, and the sum of 10 out of 16 priority PAHs (∑10PAH) varied from 123 to 2441 ng/g, with a mean of 555 ng/g, and the 5 carcinogenic PAHs (benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, and dibenz[a,h]anthracene) accounted for 68–73% of the priority PAHs. Maximum concentrations of the sediment core were obtained at subsoil depth of 12–16 cm. The prevalence of four to six aromatic ring PAHs and cross-plots of specific isomer ratios such as phenanthrene/anthracene, fluoranthene/pyrene, and methylphenanthrenes/phenanthrene suggested the predominance of wood and coal combustion sources, the atmospheric deposition, and surface runoff to be the major transport pathways. A good correlation existed between the benzo[a]pyrene level and the total PAH concentrations, making this compound a potential molecular marker for PAH pollution. Total TEQScarc values calculated for samples varied from 6.95 ng/g TEQScarc to 119 ng/g TEQScarc, with an average of 59 ng/g dry weight TEQScarc. The baseline data can be used for regular monitoring, considering the industrial and agricultural growth around this coastal environment. |
| format |
artículo |
| author |
Domínguez, Carmen Sarkar, S. K. Bhattacharya, A. Chatterjee, M. Bhattacharya, B. D. Jover Comas, Eric Albaigés Riera, Joan Bayona Termens, Josep María Alam, Md. A. Satpathy, K. K. |
| spellingShingle |
Domínguez, Carmen Sarkar, S. K. Bhattacharya, A. Chatterjee, M. Bhattacharya, B. D. Jover Comas, Eric Albaigés Riera, Joan Bayona Termens, Josep María Alam, Md. A. Satpathy, K. K. Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| author_facet |
Domínguez, Carmen Sarkar, S. K. Bhattacharya, A. Chatterjee, M. Bhattacharya, B. D. Jover Comas, Eric Albaigés Riera, Joan Bayona Termens, Josep María Alam, Md. A. Satpathy, K. K. |
| author_sort |
Domínguez, Carmen |
| title |
Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| title_short |
Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| title_full |
Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| title_fullStr |
Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| title_full_unstemmed |
Quantification and Source Identification of Polycyclic Aromatic Hydrocarbons in Core Sediments from Sundarban Mangrove Wetland, India |
| title_sort |
quantification and source identification of polycyclic aromatic hydrocarbons in core sediments from sundarban mangrove wetland, india |
| publisher |
Springer |
| publishDate |
2010 |
| url |
http://hdl.handle.net/10261/45588 |
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