ITEP Maps and Data Downloads:

Mercury Sources and Tribal Lands Map
US Tribal Point Source Maps:
Mercury Map: Mercury sources and Tribal Lands Map [PDF 2.1mb 17x11]

Mercury Map document: MS Word document which provides some background and purpose of the Mercury Map.

NOx Map: Nitrogen Oxide (NOx) Emissions Map [PDF 2.4mb 17x11]

PM 10 Map: PM 10 is measure of particles in the atmosphere with a diameter of less than ten or equal to a nominal 10 micrometers. [PDF 1.7mb 17x11]

PM 2.5 Map: PM 2.5 is a measure of smaller particles in the air. [PDF 2.4mb 17x11]

GIS Mapping Air Data tutorial
GIS Mapping AirData:
These exercises is designed to provide step-by-step instructions on how to view data on sources of air pollution available from the U.S. Environmental Protection Agency (EPA) using ArcInfo.

Download: Exercises

Trajectory Modeling:
A Powerful Tool for Identifying Air Pollution Sources. Glenn Gehring (TAMS Technology Specialist II) has created an effective step-by-step guide on using the HYSPLIT program to generate a simple backward trajectory and integrate it into a GIS program. There is also a guide to downloading emission inventory data from EPA's AirData website and integrating the data into a GIS program.

Plugging-in data and examining pollution sources, prevailing wind direction, meteorological conditions, backward trajectories and dispersion plumes during poor air quality events can give a tribal air professional a solid understanding of area sources and pollutants impacting the reservation.

Download: Trajectory Modeling:

GIS Maps resources:

Last updated: December 19, 2013


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