欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
分别于2011年4月(春季)和2011年9月(夏季)采集珠江广州河段及东江东莞河段表层水体样品,对该区域表层水体中优控多环芳烃(PAHs)的时空分布、固液分配及其来源进行了分析和讨论.结果表明,珠江广州河段及东江东莞河段表层水体中多环芳烃浓度春季高于夏季.藻类有机碳是该水环境有机碳的主要成分.溶解有机碳(DOC)、颗粒态有机碳(POC)以及叶绿素a(Chl a)含量是控制水体PAHs浓度的主要因素,说明水环境的富营养化程度可以通过增长的浮游生物量来影响多环芳烃的生物地球化学过程,继而影响其环境行为和归宿.多环芳烃在水/颗粒物间的有机碳归一化分配系数(log Koc)与辛醇/水分配系数(log Kow)间存在明显的线性关系,其斜率是夏季大于春季,可能与多环芳烃的非平衡吸附有关.多环芳烃同系物比值法和主成分分析(PCA)的结果表明,研究区域水体中PAHs主要来源于石化燃料、煤和生物质的混合燃烧,并且PAHs的来源未体现出明显的季节变化.通过本研究我们能够比较全面的了解该流域多环芳烃的时空分布状况,固液分配及其可能的来源,并且为珠江广州河段及东江东莞河段多环芳烃污染的控制和生态风险评价提供科学依据.
同期刊论文项目
同项目期刊论文
Utility of soil linear alkylbenzenes to assess regional anthropogenic influences with special refere
Novel passive sampling device for measuring sediment-water diffusion fluxes of hydrophobic organic c
Sedimentary loadings and ecological significance of polycyclic aromatic hydrocarbons in a typical ma
Sediment records of polycyclic aromatic hydrocarbons (PAHs) in the continental shelf of China: impli
Hexabromocyclododecane (HBCD) in consumer fish from South China: Implications for human exposure via
Assessing Heavy Metal Pollution in Surface Soils of a Region Underwent Three Decades of Intense Indu
Recent advances in field measurement of sediment-water diffusion flux of hydrophobic organic chemica
Catalytic effect of transition metals on microwave-induced degradation of atrazine in mineral microp
Assessment of organochlorine pesticides residues in higher plants from oil exploration areas of Nige
Persistent organic pollutants in coastal sediment off South China in relation to the importance of a
Polycyclic aromatic hydrocarbons (PAHs) in continental shelf sediment of China: Implications for ant
Diurnal and nocturnal variations of PAHs in the Lhasa atmosphere, Tibetan Plateau: Implication for l
Anthropogenic activities have contributed moderately to increased inputs of organic materials in mar
Application of multiple geochemical markers to diagnose organic pollution in a dynamic coastal zone.
Assessing anthropogenic contamination in surface sediments of Niger Delta, Nigeria with fecal sterol
Current levels and composition profiles of PBDEs and alternative flame retardants in surface sedimen
Methylsulfonyl-PCBs in fish from an electronic waste recycling site, South China: levels, Tissue dis
Degradation of Six Selected Ultraviolet Filters in Aquifer Materials Under Various Redox Conditions.
Evidence of micropore-filling for sorption of nonpolar organic contaminants by condensedoirganicmatt
Diurnal and seasonal variability in size-dependent atmospheric deposition fluxes of polycyclic aroma
Dissipation of insecticidal Cry1Ac protein in different matrices and its toxicity to non-target aqua
Contamination trends of heavy metals and coupling with algal productivity in sediment cores in Pearl
Assessment of aquatic sewage pollution in a highly industrialized zone with sediment linear alkylben
Elevated levels of polychlorinated biphenyls in plants, air and soils at an E-waste site in Southern
Photodegradation of three benzotriazoles induced by four FeIII–carboxylate complexes in water under.
A multi-section passive sampler for measuring sediment porewater profile of dichlorodiphenyltrichlor
A review of environmental and human exposure to persistent organic pollutants in the Pearl River Del
Development of a low-density polyethylene-containing passive sampler for measuring dissolved hydroph
Assessment of hormonal activities and genotoxicty of industrial effluents using in vitro bioassays c
Recognizing the limitations of performance reference compound (PRC)-calibration technique in passive
4-Nonylphenol, bisphenol-A and triclosan levels in human urine of children and students in China, an
Tracking anthropogenic influences on the continental shelf of China with sedimentary linear alkylben
Use of aliphatic hydrocarbons to infer terrestrial organic matter in coastal marine sediments off Ch
Environmental and human exposure to soil chlorinated and brominated polycyclic aromatic hydrocarbons
Determination of biocides in different environmental matrices using ultra high performance liquid ch
Polycyclic aromatic hydrocarbons in upstream riverine runoff of the Pearl River Delta, China: An ass
Association of endocrine-disrupting chemicals with total organic carbon in reverine water and suspen
Rapid extraction and determination of atrazine and its degradation products from microporous mineral
Sediment-associated pesticides in an urban stream in Guangzhou, China: Implication of a shift in pes
Bioaccumulation and risk assessment of per- and polyfluoroalkyl substances in wild freshwater fish f
Calculated respiratory exposure to indoor particle-sized polycyclic aromatic hydrocarbons in an urba
期刊信息
位置：