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Showing 1-1540 of 2046 Results
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Developing an Archiving System

This presentation from Remote Training on the Building of Sustainable National Greenhouse Gas Inventory Management Systems promotes guidance on the development of archiving systems for emissions inventory....
Online Training & Resources
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Archiving Guidance for a National Greenhouse Gas Inventory

In order to better assist them in documenting and archiving GHGI data, FAO has developed this step-by-step guidance on the structure for an archiving system (Chapter 1) and good practices for the transparent compilation of GHGI files (Chapter 2). It is hoped this will be a useful tool not only to facilitate compilation of current GHGIs but also of future GHGIs. As part of the same efforts, support...
Guidelines, Tools & Models
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AP-42: Compilation of Air Emissions Factors from Stationary Sources

AP-42, Compilation of Air Pollutant Emissions Factors from Stationary Sources, has been published since 1972 as the primary compilation of EPA's emissions factor information. It contains emissions factors and process information for more than 200 air pollution source categories. A source category is a specific industry sector or group of similar emitting sources. The emissions factors have been de...
Database
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Handbook for Criteria PollutantInventory Development: A Beginner’s Guide for Point and AreaSources

This document will help state, local, and tribal air pollution control agency personnel compile an inventory of criteria pollutant emissions from stationary (point and area) sources. The information contained in this document is intended to serve as a reference guide only, and is not intended to serve as new guidance or policy....
Guidelines, Tools & Models
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EPA Positive Matrix Factorization (PMF) 5.0: Fundamentals and User Guide

PMF is a multivariate factor analysis tool that decomposes a matrix of speciated sample data into two matrices: factor contributions (G) and factor profiles (F). These factor profiles need to be interpreted by the user to identify the source types that may be contributing to the sample using measured source profile information, and emissions or discharge inventories. The method is reviewed briefly...
Guidelines, Tools & Models
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Applying PMF receptor model for PM2.5 source appointment

The trainings aimed to provide the young and early-career scientists from the local agencies, academic and research institutions, professional associations, and private sector with the opportunities to develop their knowledge and skills with respect to applying the PMF receptor model for PM2.5 source appointment and using MODIS AOD products for assessing biomass burning-related air pollution. The ...
Online Training & Resources
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Chapter 5 - Wind and Pollution Roses

The wind rose is a very useful way of summarising meteorological data. It is particularly useful for showing how wind speed and wind direction conditions vary by year. The windRose function can plot wind roses in a variety of ways: summarising all available wind speed and wind direction data, plotting individual wind roses by year, and also by month. The latter is useful for considering how meteor...
Scientific publications
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DeltaSA tool for source apportionment

DeltaSA is an on-line tool to assess source apportionment model outputs in line with the CEN Technical Specification 17458:2020. It works in two different modes. The first is the source chemical profiles similarity test (CPS) accomplished by comparing those obtained by the user with more than one thousand PM10/PM2.5 source measured chemical profiles from the online SPECIATE (US-EPA) and SPECIEUROP...
Guidelines, Tools & Models
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DeltaSA tool for source apportionment benchmarking, description and sensitivity analysis

DeltaSA is an R-package and a Java on-line tool developed at the EC-Joint Research Centre to assist and benchmark source apportionment applications. Its key functionalities support two critical tasks in this kind of studies: the assignment of a factor to a source in factor analytical models (source identification) and the model performance evaluation. The source identification is based on the simi...
Scientific publications
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GIS for Air Quality Applications

This self-paced tutorial demonstrates how to map air quality data using ArcView GIS software (available free to tribes via the Bureau of Indian Affairs). The tutorial takes a "by doing" approach. Step-by-step exercises are provided in which participants are guided through the skills needed. Participants are directed to different sources of available data for interpretation purposes. There are seve...
Online Training & Resources