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Found 60 dataset(s) matching "apportionment".
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The Environmental Source Apportionment Toolkit (ESAT) is an open-source software package that provides API and CLI functionality to create source apportionment workflows specifically targeting...
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These data support a published journal paper described as follows: A 14-week investigation during a warm and cold seasons was conducted to improve understanding of air pollution sources that...
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This dataset contains the data contributed by EPA/ORD/NERL/CED researchers to the manuscript "Evaluation and Error Apportionment of an Ensemble of Atmospheric Chemistry Transport Modelling...
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The dataset includes a summary of the average corporation apportionment factors for all Corporations (C and S Corporations) based on California corporate tax returns.
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This dataset includes concentrations of trace inorganic elements, ions, and organic/element carbon of PM collected from two sampling sites (GT Craig and Chippewa Lake) in Cleveland as well as PM...
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The dataset includes a summary of the average corporation apportionment factors for all Corporations (C and S Corporations) based on California corporate tax returns.
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PMF source apportionment model dataset inputs and outputs for 9 northwest monitoring sites with data from 2007 to 2018. Citation information for this dataset can be found in the EDG's Metadata...
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PMF source apportionment model dataset inputs and outputs for 10 IMPROVE monitoring sites with data from 2009 to 2018. Citation information for this dataset can be found in the EDG's Metadata...
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Links are provided to the US EPA CMAQ code, the US EPA VCPy emission model, and the exact CMAQ model code and scripts used in this work. This dataset is associated with the following...
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This dataset contains corporate tax statistics based on corporate tax returns (C and S Corporations).
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This dataset contains corporate tax statistics for C and S corporations based on California corporate tax returns.
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This dataset contains 1) the methane, ethane, ammonia, and water mixing ratio time series recorded at the Platteville Atmospheric Observatory site, 2) the hourly mean energy and agriculture...
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The Integrated Source Apportionment Method (ISAM) has been revised in the Community Multiscale Air Quality (CMAQ) model. This work updates ISAM to maximize its flexibility, particularly for ozone...
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Two specific fires from 2011 are tracked for local to regional scale contribution to ozone (O3) and fine particulate matter (PM2.5) using a freely available regulatory modeling system that...
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Unmix Optimum input files and results for the LBL, and 40 Lakes regions (East, Central, West). This dataset is associated with the following publications: Norris , G., and R.C. Henry. Coal Tar...
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CMAQ predicted results containing ozone, oxides of nitrogen and other chemical species. This dataset is not publicly accessible because: EPA does not have the dataset as it was created by the...
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PAH source contributions for each Nova Scotia harbors. This dataset is associated with the following publication: Davis, E., T. Walker, M. Adams, R. Willis, G. Norris, and R. Henry. Source...
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Data sets used to prepare illustrative figures for the overview article “Multiscale Modeling of Background Ozone” Overview The CMAQ model output datasets used to create illustrative figures for...
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This Information Memorandum (IM) provides the apportionment of funds to states and territories - fiscal year 1985. Metadata-only record linking to the original dataset. Open original dataset below.
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This Information Memorandum (IM) provides information on the apportionment of funds to States and Territories -- Fiscal Year 1990. Metadata-only record linking to the original dataset. Open...
