Tools and Methodologies

The tools below are intended to assist lead agencies in analyzing air quality and greenhouse gas impacts from proposed land use projects and plans.

The Air District provides analytical tools to assist practitioners in evaluating air quality and greenhouse gas impacts during the environmental review process pursuant to the California Environmental Quality Act, or CEQA.

The tools provided in the table below do not represent an exhaustive list and should be used in conjunction with other resources.

The Air District’s stationary source, highway, and roadway screening analysis tools listed in the tables below are currently not recommended for evaluating sensitive land uses, such as schools, senior centers, daycares, and health centers. A site-specific analysis should be conducted for projects involving these sensitive land uses. Lead agencies should contact the Air District to obtain more recent data for a site-specific analysis and guidance for complying with air quality analysis. Please submit your request using the Stationary Source Data Request Form below.

Data Requests

Stationary Source Data Request Form: Download and submit this form to BAAQMD to request stationary source data for environmental review purposes. 

Note: For school projects, this form is not applicable. Instead, please submit a Public Records Request.

Tools and Methodologies

Data pager
Data pager
1
Items per Page:
PageSizeComboBox
select
 14 items in 1 pages
UpdatedTypeDescription and ResourcesDocumentstable-mobile-only-column
Data pager
Data pager
1
Items per Page:
PageSizeComboBox
select
 14 items in 1 pages
6/4/2020Tool/Data

Permitted Sources Risk and Hazards Map – GIS map tool to identify estimated risk and hazard impacts from stationary sources.


Permitted Sources Risk and Hazards Map


Note: If project is within the West Oakland Community, more detailed risk data is available through the West Oakland Community Action Plan web page.

Methodology for Permitted Stationary Sources Risk and Hazards Map
6/4/2020
Type:
Tool/Data
Description and Resources:

Permitted Sources Risk and Hazards Map – GIS map tool to identify estimated risk and hazard impacts from stationary sources.


Permitted Sources Risk and Hazards Map


Note: If project is within the West Oakland Community, more detailed risk data is available through the West Oakland Community Action Plan web page.

Documents:
6/1/2021Tool

NEW! CalEEMod 2020.4.0 - Statewide land-use emissions computer model designed to quantify potential criteria pollutant and GHG emissions associated with both construction and operations from a variety of land-use projects.

N/A
6/1/2021
Type:
Tool
Description and Resources:

NEW! CalEEMod 2020.4.0 - Statewide land-use emissions computer model designed to quantify potential criteria pollutant and GHG emissions associated with both construction and operations from a variety of land-use projects.

Documents:
N/A
1/15/2021DataEMFAC 2021 – The California Air Resources Board’s emissions inventory model for assessing emissions from on-road mobile sources.N/A
1/15/2021
Type:
Data
Description and Resources:
EMFAC 2021 – The California Air Resources Board’s emissions inventory model for assessing emissions from on-road mobile sources.
Documents:
N/A
2/25/2020Guidance

BAAQMD CEQA Thresholds of Significance

BAAQMD CEQA Thresholds
2/25/2020
Type:
Guidance
Description and Resources:

BAAQMD CEQA Thresholds of Significance

Documents:
BAAQMD CEQA Thresholds
5/31/2019Guidance

School Siting Guidelines - For evaluating environmental impacts at local schools.


BAAQMD School Siting Guidelines
5/31/2019
Type:
Guidance
Description and Resources:

School Siting Guidelines - For evaluating environmental impacts at local schools.


Documents:
BAAQMD School Siting Guidelines
5/31/2019GuidanceCalifornia Air Resources Board Air Quality and Land Use Handbook (April 2005) - For evaluating whether proposed general or area plan includes adequate buffer distances between toxic air contaminant sources and sensitive receptors.N/A
5/31/2019
Type:
Guidance
Description and Resources:
California Air Resources Board Air Quality and Land Use Handbook (April 2005) - For evaluating whether proposed general or area plan includes adequate buffer distances between toxic air contaminant sources and sensitive receptors.
Documents:
N/A
1/31/2020Guidance

Health Risk Screening Analysis Flow Chart - Outlines step-by-step screening process for estimating risk and hazards impacts in projects.

Screening Approach Flow Chart
1/31/2020
Type:
Guidance
Description and Resources:

Health Risk Screening Analysis Flow Chart - Outlines step-by-step screening process for estimating risk and hazards impacts in projects.

Documents:
Screening Approach Flow Chart
3/2/2020Guidance

Recommended Methods for Screening and Modeling Local Risks and Hazards (May 2012) - Describes in detail  how to screen and model risk and hazards from stationary, highway, and roadway sources. Also discusses the assumptions and methodologies used in developing the stationary source, highway, and roadway screening tools. For use with HARP.

Risk Modeling Approach May 2012
3/2/2020
Type:
Guidance
Description and Resources:

Recommended Methods for Screening and Modeling Local Risks and Hazards (May 2012) - Describes in detail  how to screen and model risk and hazards from stationary, highway, and roadway sources. Also discusses the assumptions and methodologies used in developing the stationary source, highway, and roadway screening tools. For use with HARP.

Documents:
Risk Modeling Approach May 2012
3/6/2020Guidance

California Air Resources Board Emissions Estimation Methodology for Ocean-Going Vessels and Commercial Harbor Craft – Inventory for use to support regulatory analysis of statewide regulations from ocean-going vessels and commercial harbor craft.


Ocean-Going Vessels


Commercial Harbor Craft

N/A
3/6/2020
Type:
Guidance
Description and Resources:

California Air Resources Board Emissions Estimation Methodology for Ocean-Going Vessels and Commercial Harbor Craft – Inventory for use to support regulatory analysis of statewide regulations from ocean-going vessels and commercial harbor craft.


Ocean-Going Vessels


Commercial Harbor Craft

Documents:
N/A
5/20/2016Guidance

Planning Healthy Places - Guidebook intended to assist local governments in addressing and minimizing potential air quality issues by providing tools and recommended best practices to reduce exposure and emissions from local sources of air pollutants. 

Planning Healthy Places
5/20/2016
Type:
Guidance
Description and Resources:

Planning Healthy Places - Guidebook intended to assist local governments in addressing and minimizing potential air quality issues by providing tools and recommended best practices to reduce exposure and emissions from local sources of air pollutants. 

Documents:
Planning Healthy Places
3/6/2020Tool

HARP – The Hotspots Analysis and Reporting Program (HARP) is a software suite that addresses the programmatic requirements of the Air Toxics "Hot Spots" Program (Assembly Bill 2588). HARP incorporates the information presented in the 2015 Air Toxics Hotspots Program Guidance Manual for Preparation of Health Risk Assessments.

N/A
3/6/2020
Type:
Tool
Description and Resources:

HARP – The Hotspots Analysis and Reporting Program (HARP) is a software suite that addresses the programmatic requirements of the Air Toxics "Hot Spots" Program (Assembly Bill 2588). HARP incorporates the information presented in the 2015 Air Toxics Hotspots Program Guidance Manual for Preparation of Health Risk Assessments.

Documents:
N/A
3/6/2020Tool

Health Risk Calculator with Distance Multipliers - Estimates and refines screen-level cancer risk, a non-cancer health hazard index, and PM2.5 concentrations using emissions data from BAAQMD's permitting database. This tool should only be used for permitted facilities where screening-level risks have not already been calculated by BAAQMD or if BAAQMD Health Risk Screening Assessments have not been completed. This tool also includes distance multipliers for gasoline dispensing facilities (GDFs), diesel internal combustion (IC) engines, and other sources. 

BAAQMD Health Risk Calculator Beta 4.0
3/6/2020
Type:
Tool
Description and Resources:

Health Risk Calculator with Distance Multipliers - Estimates and refines screen-level cancer risk, a non-cancer health hazard index, and PM2.5 concentrations using emissions data from BAAQMD's permitting database. This tool should only be used for permitted facilities where screening-level risks have not already been calculated by BAAQMD or if BAAQMD Health Risk Screening Assessments have not been completed. This tool also includes distance multipliers for gasoline dispensing facilities (GDFs), diesel internal combustion (IC) engines, and other sources. 

Documents:
BAAQMD Health Risk Calculator Beta 4.0
3/6/2020Data

Caltrans Traffic Volumes: Annual Average Daily Traffic (AADT) – Necessary for presenting statewide picture of traffic flow, evaluating traffic trends, computing accident rates, planning and designing highways, and other purposes.

N/A
3/6/2020
Type:
Data
Description and Resources:

Caltrans Traffic Volumes: Annual Average Daily Traffic (AADT) – Necessary for presenting statewide picture of traffic flow, evaluating traffic trends, computing accident rates, planning and designing highways, and other purposes.

Documents:
N/A
3/6/2020Data

Air Monitoring Data – Access to current air quality and meteorological information based on measurements taken at stations in the Air District’s air monitoring network. Some of the data on these pages is raw or unchecked data that may contain some errors.


Note: For the availability of AERMOD-ready data, please contact James Cordova at jcordova@baaqmd.gov.

N/A
3/6/2020
Type:
Data
Description and Resources:

Air Monitoring Data – Access to current air quality and meteorological information based on measurements taken at stations in the Air District’s air monitoring network. Some of the data on these pages is raw or unchecked data that may contain some errors.


Note: For the availability of AERMOD-ready data, please contact James Cordova at jcordova@baaqmd.gov.

Documents:
N/A

Note: The Roadway Screening Analysis Calculator and Highway Screening Analysis Tool are outdated and have been removed. Please contact the Air District for assistance. 

Contact Us

Matthew Hanson
Environmental Planner, Planning and Climate Protection

415.749.8733

Contact Us

Spare the Air Status