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Contamination and source of polycyclic aromatic hydrocarbons in epikarst spring water


, : Contamination and source of polycyclic aromatic hydrocarbons in epikarst spring water. Huan Jing Ke Xue= Huanjing Kexue 35(6): 2091-2098

The water samples were collected from four typical epikarst springs in Nanchuan District, Chongqing Municipality between October 2010 and October 2011. Sixteen priority polycyclic aromatic hydrocarbons in epikarst spring waters were quantitatively analyzed by the gas chromatography-mass spectrometer (GC-MS). The objectives of this study were to investigate the seasonal variations of polycyclic aromatic hydrocarbons' concentration, composition, source and contamination characterization in epikarst springs water. The results showed that the detection ratios of 16 PAHs in four springs were 100%. The total concentrations of 16 PAHs fluctuated greatly in epikarst spring water during one year observation, and the concentration ranged from 341 to 4 968 ng x L(-1), with a mean value of 1772 ng x L(-1). The total concentrations of 7 carcinogenic PAHs in rain season were all higher than those in dry season in four epikarst springs. The PAHs profiles were dominated by (2-3) rings PAHs in spring water, which accounted for more than 50% of 16 PAHs. The PAHs in spring water mainly originated from the combustion of coal, biomass and petroleum, and during June to October 2011, PAHs originated from the combustion of coal and biomass had a larger contribution. The ratios of Ant/( Ant + Phe) and Fla/( Fla + Pyr) changing with seasons showed that Ant, Phe, Fla and Pyr were easy to migrate in epikarst soils. In 4 isomeric ratios, the ratios of Fla/(Fla + Pyr) were more sensitive to reflect the information of sources. Compared to other areas in the world, the concentration of 16 PAHs in epikarst spring water is at a higher level, which shows the epikarst spring water has been suffered the PAHs pollution.

US$29.90

PMID: 25158482


Other references

Fages, J.; Poirier, B.; Barbier, Y.; Frayssinet, P.; Joffret, M.L.; Majewski, W.; Bonel, G.; Larzul, D., 1998: Viral inactivation of human bone tissue using supercritical fluid extraction. A new bone tissue process using supercritical carbon dioxide fluid extraction (SFE) has been evaluated for its ability to inactivate or eliminate viruses. Four viruses, human immunodeficiency virus type 1 (HIV-1), Sindbis virus, polio Sabin type I...

Ugnell, A.O.; Hasegawa, M.; Lundquist, P.G.; Andersson, R., 2000: Effect of carbon dioxide on cochlear blood flow in guinea pigs. The influence of carbon dioxide (CO2) on cochlear blood flow (CBF), blood pressure (SBP) and skin blood flow (SBF) was studied in anaesthetized guinea pigs. A transient acute respiratory acidosis was produced by inhalation of CO2 and oxygen (O2) g...

Atobe, Y.; Katsuya, H., 1976: Pulmonary dysfunction after open heart surgery - effects of pre-existence of pulmonary hypertension and methods of post-operative respiratory care. Masui. Japanese Journal of Anesthesiology 25(1): 71-77

Bromage, P.R.; Millar, R.A., 1958: Epidural blockade and circulating catechol amine levels in a child with phaeochromocytoma. Canadian Anaesthetists' Society Journal 5(3): 282-287

Muzzin, L.J.; Saari, M.; Martimianakis, M.Athina., 2006: Wonder drugs, working women, and the war: the education and careers of 1940s pharmacy graduates in Ontario, Canada. Pharmacy in History 47(4): 127-142

Cristodorescu, R.; Costea, M., 1977: Treatment of arterial hypertension with propranolol. Revista de Medicina Interna, Neurologe, Psihiatrie, Neurochirurgie, Dermato-Venerologie. Medicina Interna 29(1): 17-24

Reeve, R.M., 1948: An adaptable staining schedule for plant tissues. A general schedule for staining meristematic, maturing, and mature plant tissues is descr. Treatment with a dilute aqueous soln. of Dela-field's hematoxylin is followed with staining in 0.1% safranin in 60% alcohol. Destaining of safranin may...

Myers, R.E., 1972: Two patterns of perinatal brain damage and their conditions of occurrence. American Journal of Obstetrics and Gynecology 112(2): 246-276

MacEwan, S.R.; Chilkoti, A., 2010: Elastin-like polypeptides: biomedical applications of tunable biopolymers. Artificial repetitive polypeptides have grown in popularity as a bioinspired alternative to synthetic polymers. The genetically encoded synthesis, monodispersity, potential lack of toxicity, and biocompatibility are attractive features of these bi...

Aalbers, R.; Kauffman, H.F.; Vrugt, B.; Koëter, G.H.; de Monchy, J.G., 1993: Allergen-induced recruitment of inflammatory cells in lavage 3 and 24 h after challenge in allergic asthmatic lungs. To determine whether a link exists between the recruitment of inflammatory cells in the airways on a bronchial and bronchoalveolar level and the development of allergen-induced increase in bronchial hyperresponsiveness after allergen challenge, we...