Using GIS Technology for Emission Inventory and Air Quality Applications

Prepared by:Tami H. Funk

Lyle R. ChinkinSonoma Technology, Inc.

Petaluma, CA

SCOS97-NARSTO DATA ANALYSIS CONFERENCE February 14, 2001

STI-2059

2

Overview

• Introduction to Geographic Information System (GIS)

• Emission inventory-related GIS applications

• Air quality-related GIS applications

• Summary

3

Introduction

• GIS provides a method to display a large amount of data in a meaningful way.

• Visualize patterns.

• Integrate, manage, solve, and present information in an interpretive way.

TABLE GRAPH GIS

• Analyze spatial problems and make decisions.

• Illustrate and enhance data quality assurance.

4

Emission Inventory Applications (1 of 4)

• Display and analyze emissions densities and spatial distribution.

• Develop gridded surrogates for distributing county-wide emissions.

• Verify and “ground truth” emissions sources using several sources of data.

• Link interactive databases to geographic features.

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Emission Inventory Applications (2 of 4)

Emissions from Consumer Products - Los Angeles Co.

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Emission Inventory Applications (3 of 4)

Air Quality Site Characterization and Emissions Activity Databases

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Emission Inventory Applications (4 of 4)

KilometersKilometersKilometersKilometersKilometersKilometersKilometersKilometersKilometers

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U.S. NavalU.S. NavalU.S. NavalU.S. NavalU.S. NavalU.S. NavalU.S. NavalU.S. NavalU.S. NavalAir StationAir StationAir StationAir StationAir StationAir StationAir StationAir StationAir Station

I- 5I- 5I- 5I- 5I- 5I- 5I- 5I- 5I- 5

I- 5I- 5I- 5I- 5I- 5I- 5I- 5I- 5I- 5

State Hwy 94State Hwy 94State Hwy 94State Hwy 94State Hwy 94State Hwy 94State Hwy 94State Hwy 94State Hwy 94

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SAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLDSAN DIEGO INTL-LINDBERGH FLD

Auto Repair Shops

Dry Cleaning Facilit ies

Restaurants/Bakeries

Gasoline Serv ice Stations

LEGEND

SPM Site

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Exposure Applications (1 of 7)

• Spatial analysis and display of air quality data

• Verify locations of sources and receptors for modeling

• Exposure analyses

• Data quality assurance

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0 - 60 ppb61 - 79 ppb80 - 99 ppb100 - 110 ppb111 - 124 ppb125+ ppb

1-hr Average Peak OzoneConcentrationsSacramento Region

Air Quality Data Mapping

Exposure Applications (2 of 7)

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Exposure Applications (3 of 7)

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Air Quality Exposure Analysis

Exposure Applications (4 of 7)

12

3188

454 km Grid Resolution

3376

37247

192

00

Houston

Number of Person Days Per Year450,000 to 800,000260,000 to 450,000125,000 to 260,000

40,000 to 125,0008,000 to 40,000

0 to 8,000

3188

454 km Grid Resolution

3376

37247

192

00

Houston

Spatial distribution of person-daysper year of exposures to 8-hrmaximum outdoor ozone concentrationsabove 80 ppb in Houston, Texas, for1993-1995 (Lurmann et. al., 1999).

Air Quality Exposure Analysis

Exposure Applications (5 of 7)

Number of Person-days Per Year

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DataQuality Assurance

Exposure Applications (6 of 7)

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MappingAir Quality Sampling

Flight Paths

Exposure Applications (7 of 7)

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Summary

• New and improved geographical data are rapidly becoming available with the widespread use of GIS technology.

• GIS provides an easy way to QA, display, and analyze emissions and air quality data.

• Geodatabases provide a way to link tabular data to geographical maps.

• Many other potential applications.