Guo Zhigang, Lin Tian, Zhang Gan, Zheng Mei, Zhang Zongyan, Hao Yunchao, Fang Ming
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China.
Sci Total Environ. 2007 Nov 1;386(1-3):33-41. doi: 10.1016/j.scitotenv.2007.07.019. Epub 2007 Aug 22.
Polycyclic aromatic hydrocarbons (PAHs) in two (210)Pb dated sediment cores from the coastal East China Sea, strongly influenced by the discharge from the Yangtze River, were determined to help to reconstruct the economic development over the past century in East China. The variations in PAH concentrations and fluxes in the sediment cores were primarily due to energy structure change, severe floods and dam construction activities. The impact on PAHs by the river discharge overwhelmed the atmospheric depositions. The profiles of PAH fluxes and concentrations as well as compositions in the cores revealed the transformation from an agricultural economy to an industrial one especially after the 1990s' in the region. PAHs in the study area were dominated by pyrolytic sources.
对受长江排放强烈影响的东海沿岸两个经²¹⁰Pb测年的沉积岩芯中的多环芳烃（PAHs）进行了测定，以帮助重建华东地区过去一个世纪的经济发展情况。沉积岩芯中PAH浓度和通量的变化主要归因于能源结构变化、严重洪水和大坝建设活动。河流排放对PAHs的影响超过了大气沉降。岩芯中PAH通量、浓度以及组成的剖面揭示了该地区特别是20世纪90年代以后从农业经济向工业经济的转变。研究区域内的PAHs以热解源为主。
