Measurements of the concentrations of NO and NO2 were made in the rural troposphere during a year's period in 1980–1981, during the summers of 1983, 1984, and 1987, and during the fall of 1984. The field site was located near Niwot Ridge, Colorado, at an elevation of 3 km. NO was measured with a chemiluminescence instrument, and NO2 was photolyzed to NO and measured by the same instrument. The performance of this instrument is discussed in detail. Aspects of the NOx (sum of NO and NO2) concentrations discussed include the overall distribution, the seasonal and diurnal cycles, the interannual variations, and the correlation with meteorological parameters. The meteorological dependence of [NOx] elucidates the mechanisms that transport NOx to the site. Even though the Denver urban area lies downwind from the site with respect to the prevailing winds, it is NOx from that area that predominates and is responsible for the enhanced acidic deposition and elevated ozone levels at the site. The valley‐mountain flow that is primarily responsible for this transport also may be an important mechanism for transporting anthropogenic pollution from the planetary boundary layer to the free troposphere. The major photochemical loss processes of NOx are reaction of NO2 with hydroxyl radicals to form HNO3 and the formation of PAN (peroxyacetyl nitrate) and perhaps other organic nitrates in the summer and reaction of NO2 with O3 to form NO3, N2O5, and further oxidized species in the winter.

Research Articles| October 28 2008 The Arterio-Venous Fistulas of the Main Trunks: Acquired and Congenital Forms Subject Area: Cardiovascular System CH. Mahaim; CH. Mahaim De la Policlinique médicale universitaire et Département de cardiologie des Services universitaires de médecine et de chirurgie, Lausanne, Suisse Search for other works by this author on: This Site PubMed Google Scholar CH. Hahn; CH. Hahn De la Policlinique médicale universitaire et Département de cardiologie des Services universitaires de médecine et de chirurgie, Lausanne, Suisse Search for other works by this author on: This Site PubMed Google Scholar T. Grandjean T. Grandjean De la Policlinique médicale universitaire et Département de cardiologie des Services universitaires de médecine et de chirurgie, Lausanne, Suisse Search for other works by this author on: This Site PubMed Google Scholar Cardiologia (1967) 50 (2): 121–126. https://doi.org/10.1159/000169165 Article history Published Online: October 28 2008 Content Tools Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation CH. Mahaim, CH. Hahn, T. Grandjean; The Arterio-Venous Fistulas of the Main Trunks: Acquired and Congenital Forms. Cardiologia 1 February 1967; 50 (2): 121–126. https://doi.org/10.1159/000169165 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsCardiologia Search Advanced Search Article PDF first page preview Close Modal 1967Copyright / Drug Dosage / DisclaimerCopyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. You do not currently have access to this content.