Author:
Publisher:
ISBN:
Category : Environmental exposure
Languages : en
Pages : 480

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Book Description

Author:
Publisher:
ISBN: 9789241572293
Category :
Languages : en
Pages : 480

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Book Description

Author: J. Kielhorn
Publisher: Environmental Health Criteria
ISBN:
Category : Medical
Languages : en
Pages : 526

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Book Description
The Environmental Health Criteria Programme (EHC) evaluates information on the relationship between exposure to environmental pollutants and human health, in order to establish guidelines for setting exposure limits. This publication focuses on the risks posed by exposures to selected nitro-and nitro-oxy-polycyclic aromatic hydrocarbons (nitroPAHs). These are derivaties of polycyclic aromatic hydrocarbons (PAHS) which contain two or more fused aromatic rings made of carbon and hydrogen atoms.

Author: A. V. Topchiev
Publisher: Elsevier
ISBN: 1483184382
Category : Science
Languages : en
Pages : 336

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Book Description
Nitration of Hydrocarbons and Other Organic Compounds tackles various concerns in the process of substituting hydrogen atoms in the aromatic or heterocyclic nucleus, or in saturated hydrocarbon, by nitro groups. The title first covers the nitration of aromatic and heterocyclic compounds with nitric acid and nitrating mixture, and then proceeds to discussing the mechanism of the nitration of aromatic compounds with nitric acid and nitrating mixture. Next, the selection deals with the nitration of saturated, aromatic-aliphatic and unsaturated hydrocarbons with nitric acid. The text also talks about the nitration with nitrogen oxides, along with the nitration of amines. The last chapter details the nitration of organic compounds with organic and inorganic nitrates and nitroxyl. The book will be of great interest to students, researchers, and practitioners of organic chemistry.

Author:
Publisher: National Academies Press
ISBN:
Category : Air
Languages : en
Pages : 482

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Author:
Publisher: World Health Organization
ISBN:
Category : House & Home
Languages : en
Pages : 488

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Book Description
This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.

Author: IARC Working Group on the Evaluation of Carcinogenic Risks to Humans
Publisher: World Health Organization
ISBN:
Category : Medical
Languages : en
Pages : 364

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Book Description
This volume of the IARC Monographs provides evaluations of the carcinogenicity of bitumens and their emissions, the N-heterocyclic polycyclic aromatic hydrocarbons benz[a]acridine, benz[c]acridine, dibenz[a,h]acridine, dibenz[a,j]acridine, dibenz[c,h]acridine, carbazole and 7H-dibenzo[c,g]carbazole, as well as the S-hetrocyclic polycyclic aromatic hydrocarbons benzo[b]naphtho[2,1-d]thiophene and dibenzothiophene. Bitumens are produced by distillation of crude oil during petroleum refining, and also occur naturally. Bitumens can be divided into six broad classes, according to their physical properties and specifications required for different applications. The major use (about 80%) of bitumens is for road paving; other uses include roofing, waterproofing, sealing and painting. The term "bitumen" should not be confused with "asphalt", which refers to the mixture of bitumen (4-10% by weight), small stones, sand and filler used for road paving. Bitumens are complex mixtures that contain a large number of organic chemical compounds. Application of bitumens may generate emissions (fumes and vapours) that may contain, among volatile and non-volatile compounds, a number of known or probable carcinogens. An IARC Monographs Working Group reviewed epidemiological evidence, animal bioassays, and mechanistic and other relevant data to reach conclusions as to the carcinogenic hazard to humans of various occupations that entail exposure to bitumens and bitumen emissions, including road paving, roofing, and application of mastic asphalt, and to various heterocyclic polycyclic aromatic compounds.

Author: Lisa C. Bosch
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 396

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Book Description

Author: Roger Atkinson
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 76

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Author: John D. Roberts
Publisher:
ISBN: 9780805383218
Category : Chemistry, Organic
Languages : en
Pages : 1596

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Book Description
Introduction what is organic chemistry all about?; Structural organic chemistry the shapes of molecules functional groups; Organic nomenclature; Alkanes; Stereoisomerism of organic molecules; Bonding in organic molecules atomic-orbital models; More on nomenclature compounds other than hydrocarbons; Nucleophilic substitution and elimination reactions; Separation and purification identification of organic compounds by spectroscopic techniques; Alkenes and alkynes. Ionic and radical addition reactions; Alkenes and alkynes; Oxidation and reduction reactions; Acidity or alkynes.