Presence and origin of polycyclic aromatic hydrocarbon in sediments of nine coastal lagoons in central Vietnam

Giuliani, Silvia; Sprovieri, Mario; Frignani, M.; Cu, Nguyen Huu; Mugnai, C.; Bellucci, Luca Giorgio; Albertazzi, S.; Romano, Stefania; Feo, María Luisa; Marsella, Ennio; Nhon, Dang Hoai

doi:10.1016/j.marpolbul.2008.04.013

Cited by 39 publications

(26 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, PCB surficial values were not high compared with polluted environments worldwide. The same low contamination levels were observed by Giuliani et al (2008) when discussing the patterns of polycyclic aromatic hydrocarbons (PAHs) in sediment cores from the nine lagoons. However, also PAHs present in some cases (i.e.…”

Section: Introductionsupporting

confidence: 63%

“…Silt and clay fractions were determined with a X-ray Micrometric SediGraph. The results have been already published by Frignani et al (2007) and Giuliani et al (2008) and are here reported for completeness.…”

Section: Introductionmentioning

confidence: 81%

“…According to the apparent SAR for this core (0.60 cm y À1 ), this layer corresponds to the late 1960s-early 1970s, a period of intense military operations by the US Army. Also PAH congener distributions, measured in the same core approximately at the same depths, display a combustion originated composition (Giuliani et al, 2008) different from everywhere else. The high relative importance of furans at depth in core 10c is likely linked to a local input.…”

mentioning

confidence: 90%

“…This seems to be confirmed by the comparison of concentration-depth profiles of metals in cores sampled in 2002 and 2004 at sites 02c and 10c (unpublished results). The eight cores from minor lagoons provided apparent SARs ranging from 0.10 to 0.30 cm y À1 (Giuliani et al, 2008). Table 1 List of PCDD/F concentrations in surficial sediments from: (i) sites 02c, 10c and 14s from the TG-CH lagoon; (ii) eight minor lagoons; (iii) two reservoirs and three soils in the province of Thua Thien-Hué.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

Piazza

Giuliani

Bellucci

et al. 2010

Marine Pollution Bulletin

Self Cite

View full text Add to dashboard Cite

Samples from nine Central Vietnam coastal lagoons, together with three soils and sediments collected in 24 two freshwater reservoirs of the Thua Thien-Hué province, were analysed for polychlorinated dibenzo-p- 25 dioxins and dibenzofurans (PCDD/Fs). Total concentrations are low, from 192 to 2912 pg g1 and depth 26 profiles in Tam Giang-Cau Hai (TG-CH) sediment cores show only minor changes over time in PCDD/F 27 input and composition. Octachloro dibenzo-p-dioxin (OCDD) is the prevailing congener (approximately 28 90%), indicating combustion as the main PCDD/F source to these coastal systems, whereas natural forma- 29 tion might be partly responsible for the presence at depth. 2,3,7,8-Tetrachloro dibenzo-p-dioxin (TCDD), 30 largely sprayed together with Agent Orange over the study areas during the war (1961–1971), is absent 31 or very low. This result supports the hypothesis of strong degradation soon after spraying. Multivariate 32 statistical analyses account for the presence of local, short-range sources as observed in the northern part 33 of the TG-CH lagoon

show abstract

Section: Introductionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 81%

mentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

Piazza

Giuliani

Bellucci

et al. 2010

Marine Pollution Bulletin

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, Giuliani et al (2008) discussed the distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in the same study areas and found very low concentrations. The highest values were observed at the northernmost locations (LC) indicating the predominance of local sources instead of a widespread distributed contamination.…”

Section: Introductionmentioning

confidence: 99%

Metals in Sediment Cores from Nine Coastal Lagoons in Central Vietnam

Shireesh¹

2012

American Journal of Environmental Sciences

View full text Add to dashboard Cite

Problem statement: After being dramatically hit by war events, Vietnam is presently experiencing a huge economical and social development. However, very few data, relative to pollution levels and trends, are available for the correct management of critical areas such as coastal lagoons, where many economical activities are linked to high value environmental features. Approach: A set of sediment cores from nine coastal lagoons of central Vietnam (Lang Co, Truong Giang, An Khe, Nuoc Man, Nuoc Ngot, Thi Nai, O Loan, Thuy Trieu and Dam Nai) were sampled in 2008 and analyzed to assess metal and (Al, Cd, Cr, Cu, Fe, Hg, Li, Mn, Ni, Pb, V, U and Zn) and As levels and historical trends. Results: Concentrations are generally low, with the exception of As, which often exceeds ERL guidelines and Ni that does the same at O Loan. In some cases, concentrations-depth profiles account for recent increasing trends but surficial values are still low when compared to both international guidelines and polluted sediments all around the world. Sediment grain size seems to affect the depth distribution of a number of metals and when normalized to the content of silt and clay, values are particularly high at Dam Nai and Thi Nai, due to the very coarse composition of surficial sediments. Conclusion: Metal concentrations in lagoon sediments derive from the composition of rocks and soils in the watersheds. However, recent increasing trends need for further monitoring.

show abstract

Distribution and Source Apportionment of Polycyclic Aromatic Hydrocarbons in Bank Soils and River Sediments From the Middle Reaches of the Huaihe River, China

Zhang

Liu

Wang

et al. 2015

CLEAN Soil Air Water

View full text Add to dashboard Cite

Bank surface soil and river sediment samples from the middle reaches of the Huaihe River were analyzed by GC-MS for polycyclic aromatic hydrocarbons (PAHs). The total PAHs concentrations ranged from104 to 947 ng/g in bank soils and from 83 to 2599 ng/g in river sediments. The PAHs levels of the studied samples are relatively higher as compared to those from other world regions, which suggest an enhanced deposition of atmospheric PAHs derived from the emissions of fossil fuel combustion in this area. Possible sources from soil and sediments were diagnosed by the paired PAHs isomer ratios and principal components analysis, and the results indicate that the PAHs in the soils mainly came from coal combustion (74 %) followed by combustion of refined petroleum products (26 %), and in the sediments mainly from pyrogenic sources (89 %) followed by petroleum sources of oil spill emissions (11 %). The PAHs exposure risk assessments show that PAHs in majority of the sediments did not pose threats to the ambient ecosystem. However, the calculated total toxic benzo[a]pyrene (BaP) equivalent of PAHs in soil and sediment indicate that BaP is the most potentially carcinogenic individual PAH.

show abstract

Presence and origin of polycyclic aromatic hydrocarbon in sediments of nine coastal lagoons in central Vietnam

Cited by 39 publications

References 40 publications

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

Metals in Sediment Cores from Nine Coastal Lagoons in Central Vietnam

Distribution and Source Apportionment of Polycyclic Aromatic Hydrocarbons in Bank Soils and River Sediments From the Middle Reaches of the Huaihe River, China

Contact Info

Product

Resources

About