DOI: 10.1016/j.marpolbul.2016.10.015
Scopus记录号: 2-s2.0-84992200234
论文题名: Dynamics of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of Cochin estuary, India
作者: Ramzi A. ; Habeeb Rahman K. ; Gireeshkumar T.R. ; Balachandran K.K. ; Jacob C. ; Chandramohanakumar N.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 114, 期: 2 起始页码: 1081
结束页码: 1087
语种: 英语
英文关键词: Cochin estuary
; Polycyclic aromatic hydrocarbons
; Sediments
; Source
Scopus关键词: Aromatic compounds
; Aromatic hydrocarbons
; Aromatization
; Atmospheric thermodynamics
; Estuaries
; Hydrocarbons
; Molecular weight
; Sediments
; Surficial sediments
; Temperature
; Cochin estuaries
; High molecular weight
; Low molecular weight
; Low temperature combustion
; Polycyclic aromatic hydrocarbons (PAHS)
; Source
; Transport pathways
; Tropical ecosystems
; Polycyclic aromatic hydrocarbons
; polycyclic aromatic hydrocarbon
; carcinogen
; polycyclic aromatic hydrocarbon
; water pollutant
; carcinogen
; combustion
; concentration (composition)
; estuarine sediment
; PAH
; pollutant source
; pollutant transport
; seasonal variation
; toxicity
; Article
; combustion
; concentration (parameters)
; dynamics
; ecosystem
; estuary
; India
; low temperature
; molecular weight
; pyrolysis
; runoff
; seasonal variation
; sediment
; analysis
; chemistry
; China
; environmental monitoring
; estuary
; river
; season
; sediment
; water pollutant
; Cochin Estuary
; India
; Kerala
; Carcinogens
; China
; Ecosystem
; Environmental Monitoring
; Estuaries
; Geologic Sediments
; India
; Polycyclic Aromatic Hydrocarbons
; Rivers
; Seasons
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Polycyclic aromatic hydrocarbons (PAHs) showed significant seasonal dynamics in surface sediments of a tropical ecosystem (Cochin estuary, south west coast of India). Concentrations ranged from 304 to 5874 ngg− 1in pre-monsoon, 493 to 14,149 ngg− 1in monsoon, and 194 to 10,691 ngg− 1in post-monsoon. The estuary was moderately contaminated with low molecular weight PAH fractions, which increased rapidly during the monsoon season indicating land/river runoff as the major transport pathway. The dominance of 2–3 ring fractions in the PAH indicated petrogenic and low temperature combustion processes as major sources, while the very low levels of 5–6 ring components indicated low contribution from pyrolytic sources. Low molecular weight fractions were higher in concentration than the Effective Range-Median (ERM) levels, whereas high molecular weight PAHs were lower than the Effective Range-Low values (ERL). Calculated carcinogenic toxicity equivalents (TEQ) values ranged from 1 to 971 ng g− 1in the surface sediments. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87875
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Inter University Centre For Development of Marine Biotechnology, School of Marine Sciences, Cochin University of Science and Technology, Kochi, India; CSIR-National Institute of Oceanography Regional Centre, Visakhapatnam, India; CSIR-National Institute of Oceanography Regional Centre, Kochi, India; Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Kochi, India
Recommended Citation:
Ramzi A.,Habeeb Rahman K.,Gireeshkumar T.R.,et al. Dynamics of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of Cochin estuary, India[J]. Marine Pollution Bulletin,2017-01-01,114(2)