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Climate Change 2016
October 27-29, 2016
Volume 7, Issue 9(Suppl) J Earth Sci Clim Change
ISSN: 2157-7617 JESCC, an open access journal
conferenceseries .com
October 24-26, 2016 Valencia, Spain
World Conference onClimate Change
Relationship of polycyclic aromatic hydrocarbons with algae-derived organic matter in sediment
cores from a subtropical region
Yong Ran1 , Dandan Duan1,2, Youda Huang 1,2 and Dainan Zhang1,2
1Chinese Academy of Sciences, China
2University of Chinese Academy of Sciences, China
The influence of algae-derived organic matter (AOM) and climate warming on the historical record of polycyclic aromatic
hydrocarbons (PAHs) in the subtropical reservoir sediments was investigated. The profiles of PAH concentrations and
AOM contents at the eutrophic and meso-eutrophic reservoirs are significantly elevated, and show good correlations with
increasing mean air temperature during the past 60 years, suggesting that increasing temperature plays a significant role in
increase of algal productivity and PAH deposition. Temperature-mediated AOM is suggested to enhance the deposition and
accumulation of pyrogenic PAHs in the sediment cores, also implying an inaccurate estimation on the historical record for
atmospheric deposition of PAHs in eutrophic and meso-eutrophic reservoirs. For an oligotrophic reservoir, PAHs decrease as
the sediment depth decreases, and are less significantly related to AOM. As the oligotrophic reservoir is phosphorus-limited
and its AOM is significantly oxidized, the effect of increasing temperature on AOM and PAHs is insignificant.
Biography
Yong Ran is a Principal Investigator or co-investigator for 18 research grants totaling 9 million Yuan (RMB) from the National Natural Science Foundation of China,
Chinese Academy of Sciences and State Science and Technology Ministry of China. His recent research (1998-2015) has involved in distribution, source, sorption,
bioaccumulation and bioavailability of organic contaminants in terrestrial and aquatic systems. His research was awarded with one national prize and one provincial
prize. He has been the author of over 70 referred international and national publications.
Yong Ran et al., J Earth Sci Clim Change 2016, 7:9(Suppl)