Air Quality Modeling in California
Air Quality Modeling in California

Author: Jianlin Hu

Publisher:

Published: 2012

Total Pages:

ISBN-13: 9781267656971

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A new generation of the source-oriented UCD/CIT air quality model was developed and applied to (1) investigate the impacts of diagnostic vs. prognostic meteorological fields on predicted particulate matter (PM) concentrations, (2) quantify the contribution of volatile organic compounds (VOCs) emitted from livestock feed to ozone (O3) formation, and (3) estimate primary PM exposure fields from ~900 sources for use in epidemiological studies. Diagnostic meteorological fields produced more accurate air quality predictions than the WRF prognostic fields during the winter episode of the California Regional PM10/PM2.5 Air Quality Study (CRPAQS), suggesting that diagnostic meteorological fields generated by a dense measurement network are the preferred choice for air quality model studies during relatively short stagnation periods in locations with complex topography. VOCs emitted from livestock feed contributed ~3.5 tons of the ground level peak O3 (8-hr average) in the San Joaquin Valley (SJV), and mobile VOC contributed ~12 tons in the 2000 summer episode of the Central California Ozone Study (CCOS). Primary PM0.1, PM1., and PM2.5 concentrations from ~900 sources predicted across California for a 7 year period (2000-06) are in good agreement with measured concentrations for EC and 9 trace elements in the PM2.5 size range and for mass and EC in the PM0.1 size range. Source apportionment results from the mechanistic air quality model are likewise in good agreement with receptor-based source apportionment calculations. The continuous PM0.1 and PM2.5 fields predicted by the source-oriented air quality model provide new information on trace composition and source origin of airborne particulate matter that will support future epidemiological studies for the health effects of air pollution.

Planning and Managing Regional Air Quality
Planning and Managing Regional Air Quality

Author: Paul A. Solomon

Publisher: CRC Press

Published: 1994-06-15

Total Pages: 860

ISBN-13: 9781566700597

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This book presents the widely applicable information obtained during the planning and management of the collaborative regional air quality study known as the San Joaquin Valley Air Quality Study/Atmospheric Utility Signatures, Predictions, and Experiments (SJVAQS/AUSPEX). The extensive experience and knowledge gained during and after the study is clearly presented in this guide - an ideal working reference for developing regional and subregional air quality and meteorological field measurement and modeling studies.

Air Pollution Modeling
Air Pollution Modeling

Author: P. Zannetti

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 448

ISBN-13: 147574465X

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Finishing this book is giving me a mixture of relief, satisfaction and frus tration. Relief, for the completion of a project that has taken too many of my evenings and weekends and that, in the last several months, has become almost an obsession. Satisfaction, for the optimistic feeling that this book, in spite of its many shortcomings and imbalances, will be of some help to the air pollution scientific community. Frustration, for the impossibility of incorporating newly available material that would require another major review of several key chap ters - an effort that is currently beyond my energies but not beyond my desires. The first canovaccio of this book came out in 1980 when I was invited by Computational Mechanics in the United Kingdom to give my first Air Pollution Modeling course. The course material, in the form of transparencies, expanded, year after year, thus providing a growing working basis. In 1985, the ECC Joint Research Center in Ispra, Italy, asked me to prepare a critical survey of mathe matical models of atmospheric pollution, transport and deposition. This support gave me the opportunity to prepare a sort of "first draft" of the book, which I expanded in the following years.

Air Pollution Modeling and Its Application II
Air Pollution Modeling and Its Application II

Author: C. De Wispelaere

Publisher: Springer Science & Business Media

Published: 2013-03-08

Total Pages: 851

ISBN-13: 1468479415

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In 1969 the North Atlantic Treaty Organization established the Committee on the Challenges of Hodern Society. Air Pollution was from the start one of the priority problems under study within the framework of the pilot studies undertaken by this Committee. The organization of a yearly symposium dealing with air pollution modeling and its application is one of the main activities within the pilot study in relation to air pollution. After being organized for five years by the United States and for five years by the Federal Republic of Germany, Belgium, repre sented by the Prime Minister's Office for Science Policy Programming, became responsible in 1980 for the organization of this symposium. This volume contains the papers presented at the 12th Interna tional Technical Meeting on Air Pollution Modeling and its Appli cation held at SRI International, Menlo Park, California in the USA from 25th to 28th August 1981. The meeting was jointly organized by the Prime Minister's Office for Science Policy Programming, Belgium and SRI International, USA. The conference was attended by 109 participants and 51 papers have been presented. The members of the selection committee of the 12th I.T.M. were A. Berger (Chair man, Belgium), W. Klug (Federal Republic of Germany), L.E. Niemeyer (United States of America), L. Santomauro (Italy), J. Tikvart (United States of America), M.L. Williams (United Kingdom), H. Van Dop (The Netherlands), C. De Wispelaere (Coordinator, Belgium).

Transportation Conformity
Transportation Conformity

Author:

Publisher:

Published: 2017

Total Pages: 24

ISBN-13:

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Transportation conformity is required under the Clean Air Act (CAA) Section 176(c) to ensure that Federally-supported transportation activities are consistent with (“conform to”) the purpose of a State Implementation Plan (SIP). Transportation conformity establishes the framework for improving air quality to protect public health and the environment. Conformity to the purpose of the SIP means Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) funding and approvals are given to highway and transit activities that will not cause new air quality violations, worsen existing air quality violations, or delay timely attainment of the relevant air quality standard, or any interim milestone. This Guide was prepared to help State and local officials understand transportation conformity and how conformity requirements relate to transportation investments in their communities. Specifically, the implications of conformity on metropolitan transportation plans, transportation improvement programs (TIPs), and transportation projects are discussed. The Guide provides overview information on the major elements of the conformity process and provides answers to basic questions. Several exhibits are included in the Guide to illustrate key elements of the conformity process. Appendices are also included that discuss the health effects of pollutants, options to reduce on-road mobile source emissions, and resource agency contacts.