Polycyclic aromatic hydrocarbons epa pahs in the urban surface soils from beijing were deterniincd using gas chromatography and mass. The content of pahs in recombinant bacon was determined by solid phase extraction pretreatment and high performance liquid chromatography with. Airborne toxic control measure to reduce formaldehyde emissions from composite wood products, 9312093120. Based on 210 pb and 7 cs dating, the pahs sedimentary history from 1877 to 2017 of chagan lake was reconstructed. The scihub project supports open access movement in science. Polycyclic aromatic hydrocarbons pahs are common persistent organic environmental pollutants, which enter the ecosystem through the food chain and directly endanger human health and the safety of the entire ecosystem. Determination of sixteen polycyclic aromatic hydrocarbons in feeds. Concentrations and influence factors of polycyclic aromatic hydrocarbons in leaves of dominant species in the pearl river delta. Hormones from drinking and waste water by lcmsms tn1184. Understanding the reactivity of polycyclic aromatic hydrocarbons. After entry into the lung, pahs induce phase i metabolic enzymes such as. Polycyclic aromatic hydrocarbons in urban soils of beijing. The open access is a new and advanced form of scientific communication, which is going to replace outdated subscription models.
South china tian xiaoxue,zhou guoyi,peng pingan2 1. Determination and distribution of polycyclic aromatic hydrocarbons. In addition a number of heterocyclic aromatic compounds e. Toxicities of polycyclic aromatic hydrocarbons for aquatic. Polycyclic aromatic hydrocarbons in water and sediment of the baltic seaj. Polycyclic aromatic hydrocarbons pahs are one of the most important persistent organic pollutants pops and are widespread in surface. Polycyclic aromatic hydrocarbons pahs such as benzoapyrene bap are ubiquitous environmental organic pollutants, which mainly originate. Source identification and ecological risk assessment of polycyclic aromatic hydrocarbons in sedi. International programme on chemical safety, world health organization. High quality spe products leader in analytical chemistry. Aromatic amines, selected arsenic and its compounds asbestos fibres asbestos minerals barium compounds organic or water soluble benzidine and its salts benzene beryllium and its compounds biocidal coatings biocidal additives butadiene, 1,3 cadmium and its compounds chlorinated hydrocarbons chlorinated or. Assessment of input sources and transport pathways usingcompositional analysisj.
Bap7 polycyclic aromatic hydrocarbons,pahs,level pahs. The principle of catalytic reaction and the modification methods for catalyst are introduced from the viewpoint of. The sources of pah were identified by positive definite matrix factorization model pmf, and the. To investigate effects of lowmolecularweight organic acids on degradation of phenanthrene and bacterial community structure in soil, changes in soil phenanthrene. Journal of colloid and interface science,2011,3572. Polycyclic aromatic hydrocarbon in urban soil from beijing, china.
Sample preparation solutions for biological samples. Pfos directive delta halogenfree guideline, 0200302. Selected nonheterocyclic polycyclic aromatic hydrocarbons r. Fig 5 polycyclic aromatic hydrocarbons as precursors for graphenal polymers formation 21, 24, 27 a the formation of carbon nanotubes with controlled orientation of graphene layers. Accor ding to efsa, a combination of four specific pahs is best suited as an indicator of pah content in food stuffs. Human health risk assessment of polycyclic aromatic hydrocarbons. The term polycyclic aromatic hydrocarbons pahs commonly refers to a large class of organic compounds that contain only carbon and hydrogen and are. Pcb polychlorinated naphthalenes polychlorinated terphenyls pct polycyclic aromatic hydrocarbons. Sixteen priority polycyclic aromatic hydrocarbons pahs proposed by us epa were analyzed using gcms method in a sediment core from chagan lake cg in northeast china. Alterations in central monoaminergic neurotransmission induced by polycyclic aromatic hydrocarbons in ratsj. Concentration levels and potential ecological risks of polycyclic. Polycyclic aromatic hydrocarbons pahs were ranked as the ninth most threatening compounds to human health in 2001 king et al.
Characteristics of polycyclic aromatic hydrocarbons pahs in airparticle matter pm2. Polycyclic aromatic hydrocarbons pahs levels in four commonly consumed smoked fish species from markets in southern nigeria were. Distribution of polycyclicaromatic hydrocarbons in the coastal region off macao china. Relationship between polycyclic aromatic hydrocarbons loads. South china botanical garden,chinese academy of sciences,guangzhou 510650,china. Polycyclic aromatic hydrocarbons by gas chromatography mass spectrometry coupled with helium saver module keywords. Polycyclic aromatic hydrocarbons pahs by gcms and lcms tn0042. Sources and characteristics of polycyclic aromatic hydrocarbons in.
Some nonheterocyclic polycyclic aromatic hydrocarbons and. A new sensor concept for improving selectivity in the detection of polycyclic aromatic hydrocarbons pahs in waterj. Adsorption of polycyclic aromatic hydrocarbons from aqueous solutions by modified periodic mesoporous organosilicaj. Limit of harmful substances of woodenware coatings. Pengukuran polyaromatic hydrocarbons pahs dengan menggunakan passive. Testing and validation of polycyclic aromatic hydrocarbons pah in the course of gsmark certification, zek 01. Polycyclic aromatic hydrocarbons are very toxic and. Bowlshaped polycyclic aromatic hydrocarbons,buckybowls,corannulene, cyclopentacorannulene, buckminsterfullerene c60. This study utilized the literature on rural households in core journals accessed through cnki and web of sciences from 1984 to 2017 using quantitative informetrics to identify any apparent trends and to identify the sphere of influence of existing research of different countries, institutions. The isomerization and demethylation of aromatic hydrocarbon series compounds occur with the increase of thermal evolution degree of organic matter in the overmature stage, which has a good coupling effect with the change of specific surface area of organic matter and a good correlation with analytical gas about investigation wells. Methods the changes of physical and chemical properties water, ph, tba and fatty acid of the 2 methods were investigated. Polycyclic aromatic hydrocarbons pahs are a large family of organic compounds that are typically composed of two or more fused aromatic rings.
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