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Saturday, August 8, 2020 | History

1 edition of Source apportionment techniques and consideration in combining their use found in the catalog.

Source apportionment techniques and consideration in combining their use

Source apportionment techniques and consideration in combining their use

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  • 12 Currently reading

Published by U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards in Research Triangle Park, N.C .
Written in English

    Subjects:
  • Air quality management -- United States,
  • Particles,
  • Pollution -- United States -- Measurement

  • Edition Notes

    Statementby Michael K. Anderson ... [et al.]
    SeriesReceptor model technical series -- v. 5
    ContributionsAnderson, Michael K, United States. Environmental Protection Agency. Office of Air Quality Planning and Standards, TRC--Environmental Consultants
    The Physical Object
    Pagination1 v. (various pagings) ;
    ID Numbers
    Open LibraryOL14268090M

      PM is the key pollutant in atmospheric pollution in China. With new national air quality standards taking effect, PM has become a major issue for future pollution control. To effectively prevent and control PM, its emission sources must be precisely and thoroughly understood. However, there are few publications reporting comprehensive and systematic Cited by: Source apportionment of PM in the southeastern United States using receptor and emissions-based models: Conceptual differences and implications for time-series health studies.

      Canonaco F, Crippa M, Slowik J G, Baltensperger U, Prévôt A S H. SoFi, an IGOR-based interface for the efficient use of the generalized multilinear engine (ME-2) for the source apportionment: ME-2 application to aerosol mass spectrometer data. Atmospheric Measurement Techniques, , 6(12): – Article; Google ScholarCited by: 8. With regard to the [] mass apportionments, the findings of this intercomparison among results from some of the leading source apportionment research groups indicate that the same major source types (those that contribute most of the [] mass at each site), with similar elemental makeups (i.e., key tracers), are consistently.

      Each of the Source Apportionment Workshop participants provided source resolutions using their preferred method(s). Table 1 summarizes the data analyses that were performed on these data by: Secondary formation of organic aerosol in the Los Angeles Basin: A descriptive analysis of organic and elemental carbon concentrations. Atmos. Environ., 25A(2) (). SPECIATE: EPA's repository of total organic compound and particulate matter speciated profiles for a variety of sources for use in source apportionment studies.


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Source apportionment techniques and consideration in combining their use Download PDF EPUB FB2

Get this from a library. Source apportionment techniques and consideration in combining their use. [Michael K Anderson; United States. Environmental Protection Agency. Office of Air Quality Planning and Standards.; TRC--Environmental Consultants.;].

EPA/ RECEPTOR MODEL TECHNICAL SERIES, VOLUME V Source Apportionment Techniques And Considerations In Combining Their Use By Michael K. Anderson Edward T. Brookman Richard J. Londergan John E. Yocom TRC Environmental Consultants, Inc.

East Hartford, CT Dr. John G. Watson Desert Research Institute Reno, NV Dr. In the context of specific historical ozone episodes, use regional source apportionment tools to identify those areas within nearby oil and gas basins that are most likely to contribute to ozone nonattainment.

Source apportionment tools used in regional modeling applications are described in Appendix B. source apportionment techniques as well as the overall generality of those results make it difficult for policy makers to target specific sources solely on the basis of statistical source apportionment tools A combination of techniques provides a better.

Source apportionment studies are generally best conducted through the successive use of simple screening models followed by more precise methods.

At each stage of this process, one must decide whether further analysis and investigation by more complex methods is warranted. Source Apportionment (SA) is the identification of ambient air Source apportionment techniques and consideration in combining their use book sources and the quanti-fication of their contribution to pollution levels.

This task can be accomplished using different approaches: emission inventories, source-ori-ented models and receptor-oriented models. Goals/objectives of the reportFile Size: 1MB. Volume V (EPA/). "Source Apportionment Techniques and Considerations in Combining Their Use", provides guidance for the coor- dinated use of the various receptor and source model techniques in source apportionment activities.

Summary discussions of the available receptor and source models are presented. Guide for source apportionment with source oriented models (including combined use of source oriented and receptor models) Download report: Reports Air quality in the Danube macro-region - Towards a coordinated science-based approach in support of policy development Source apportionment of fine PM by combining high time resolution organic.

Introduction. In the field of atmospheric sciences, source apportionment (SA) models aim to re-construct the impacts of emissions from different sources of atmospheric pollutants, e.g., particulate matter (PM), based on ambient data registered at monitoring sites (Bruinen de Bruin, Koistinen, Yli-Tuomi, Kephalopoulos, & Jantunen,Hopke and Song,Watson et Cited by: Source apportionment of primary/secondary pollutants in urban/rural areas using various methods.

Regional transport of pollutants among different regions in Asia. Comparisons of different source apportionment techniques in megacities in Asia, such as Beijing, Shanghai, Tokyo, Seoul, and New Delhi.

The speciated rollback model is a simple, spatially averaged mathematical model that disaggregates the major airborne particle components into chemically distinct groups that are contributed by different types of sources (Trijonis et al.,).

As a preliminary step in the source apportionment procedure, three multivariate techniques for extracting source profiles from exposure data will be tested. An additional objective of the research is to demonstrate methods for evaluating the source apportionment results, using simulated exposure data, and using questionnaire data from personal.

Apportionment or apportionment by population is a concept in United States law of allocating representatives or taxes among the US states. Apportionment is based on the United States Census taken every ten years.

Seats in the United States House of Representatives are then apportioned among the states. Each state gets a number of seats based on its population (the. Primer on Pollution Source Apportionment. Building an effective air pollution control plan for the cities and the regions, it is important to know the contribution of sources.

Tools for improving air quality management: A review of top-down source apportionment techniques and their application in developing countries. The first method approved for use by the United States Congress for the apportionment of seats in the House of Representatives.

It is based on using the Lower Quotas for every state as their initial apportionment, then adding any remaining seats based on the largest fractional pieces of each state's standard quota.

by combining innovative motorway tunnel sampling and source apportionment modelling. Analytical techniques ICP-AES and GCeMS were used to identify the metallic and organic composition of PM10, respectively. Good correlation was observed between Fe, Cu, Mn, Ni, Pb and Sb and change in traffic volume.

butions and source apportionment methods are not appropri-ate to evaluate the impact of abatement strategies. A quantifi-cation of the potential nonlinearities should therefore be the first step prior to source apportionment or planning applica-tions, to prevent any limitations in their use.

When nonlin-File Size: KB. via a single-sales-factor apportionment formula will be required to use California’s three-factor apportionment formula (consisting of a payroll factor, a property factor, and a double-weighted sales factor), and they must source receipts from sales ‘‘other than sales of tangible per-sonal property’’ using California’s long-File Size: 1MB.

The legal term apportionment (French: apportionement; Mediaeval Latin: apportionamentum, derived from Latin: portio, share) means distribution or allotment in proper shares. It is a term used in law in a variety of senses. Sometimes it is employed roughly and has no technical meaning; this indicates the distribution of a benefit (e.g.

salvage or damages under the Fatal. representatives. The apportionment problem comes up in a variety of non-political areas too, though.

We face several restrictions in this process: Apportionment rules 1. The things being divided up can exist only in whole numbers. We must use all of the things being divided up, and we cannot use any more.

Size: KB. The project will determine how to optimally use nonparametric regression techniques for source apportionment using wind speed and direction. Thus, the vast amount of historical routine air quality monitoring data can be used for source apportionment, making it possible to use forensic methods to make more efficient regulations.Various source-apportionment methods have thus been developed, which specialize in providing some subset of this information in order to answer particular types of science or policy questions.

Here we present a brief categorization of methods around typical air quality management questions, and provide an overview (Table 1) of which air quality.Annual Conference, this apportionment must be paid in full each year by every local church.

Any part of this apportionment that a church does not pay in the current year is carried forward and added to that church’s apportionment the following year. Apportionment Percent given %$2, $2, % $2, %File Size: KB.