Science & Technology

Air Issues in Louisiana

Air Programs and Pollution Issues in Louisiana

Download the Automotive Trends Report

Download the light-duty vehicle carbon dioxide and fuel economy trends report.

Indicators: Water Clarity

Water clarity is a measure of how clear water is, and more specifically, how far down light can penetrate through the water column.

Indicators: Shallow Water Habitat/In-stream Fish Habitat

Shallow water habitat, also referred to as in-stream fish habitat, refers to areas that fish and other aquatic organisms need for concealment, breeding and feeding. This includes large woody snags, boulders, rock ledges, and undercut banks.

Indicators: Streambed Fine Sediments

Streambed sediments are fine mineral deposits and silt located on the streambed. In excess amounts, they can fill in the habitat spaces between stream cobbles and rocks where aquatic organisms live and breed.

2022v2 Emissions Modeling Platform Technical Support Document

This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2022.

2022v1 Emissions Modeling Platform Technical Support Document

This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2022.

2022v2 Emissions Modeling Platform

Modeling files from the 2022v2 Emissions Modeling Platform

Data Sets

GHG Reporting Program Data Sets

Engines and Vehicles Compliance Information System (EV-CIS) Documentation for Request for Certificate (RFC) Module

These files are used across industry sectors for RFC Module in EV-CIS.

Frequent Questions about BMDS Modeling Tools

Frequent questions for BMDS 3.3 Excel and BMDS Online

2011 National Emissions Inventory (NEI) Technical Support Document

Explains the sources of information in the inventory; show what sources of data used for each sector; and provide more information about the components.

Air Emissions Inventory Guidance Documents

A collection of documents that provides the latest available guidance on developing emissions inventories to meet State Implementation Plan requirements

Sharing Facility Data Between Air Data Systems

This document provides definitions of facility attribute data fields used in the Facility Registry Service (FRS) Facility Widget and explains the relationship of those fields to the Emissions Inventory System (EIS).

2008 NEI Technical Support Document

The 2008 NEI is a national compilation of emissions sources collected from state, local, and tribal air agencies as well as from emissions information from the EPA emissions program.

2014 National Emissions Inventory (NEI) Technical Support Document (TSD)

Explains the sources of information in the inventory; show what sources of data used for each sector; and provide more information about the components.

Tribal Governments’ Environmental Projects Grow in Region 7

EPA Region 7 is committed to assisting tribes strengthen their abilities to manage environmental programs in Indian Country, and to ensure that tribes have a voice in decisions that affect their land, air and water.

Tribal Water Systems in the Midwest

EPA Region 7 is offering free lead service line (LSL) inventory technical assistance to eligible Tribal Community Water Systems (CWS) and Non-Transient, Non-Community Water Systems (NTNCWS).

Clearinghouse for Inventories and Emissions Factors (CHIEF)

Emissions inventories, modeling, and monitoring are the basis for understanding, controlling and tracking stationary sources of air pollution. This technical site provides access to tools and data to support those efforts.

Technical Resources and Studies