What's New List Serve Post Display

What's New List Serve Post Display

Below is the List Serve Post you selected to display.
inuseag -- Risk Management Guidance for Stationary Sources of Air Toxics - Draft Discussion Document Released for Public Comment

Posted: 27 May 2015 14:18:09
The California Air Resources Board (ARB/Board) and the California
Air Pollution Control Officer’s Association (CAPCOA) announce the
release of the draft document “Risk Management Guidance for
Stationary Sources of Air Toxics”.  

 This document is a discussion draft of guidance that
California’s 35 local Air Pollution Control Districts and Air
Quality Management Districts (Districts) may elect to use for
incorporating the Office of Environmental Health Hazard
Assessment’s (OEHHA) new health risk assessment methodology into
their stationary source permitting and Assembly Bill (AB) 2588
Air Toxics Hot Spots programs.  This document is now available
at: http://www.arb.ca.gov/toxics/rma/rmaguideline.htm.

There are two public workshops scheduled to discuss this document
in Diamond Bar and Sacramento on June 16 and 18, 2015,
respectively.  More information on these workshops and a copy of
the workshop notice is available at:
http://www.arb.ca.gov/toxics/rma/rmaworkshops.htm.

The public comment period on the draft risk management guidance
document ends June 26, 2015.  Comments should be emailed to Mr.
Gregory Harris at gregory.harris@arb.ca.gov or mailed to: 

California Air Resources Board
Attn: Mr. Gregory Harris
P.O. Box 2815
Sacramento, California 95812

Following the workshops, we will release a revised draft for
consideration by the ARB at a public hearing on July 23, 2015. 
More information on the public hearing will be listed at:
http://www.arb.ca.gov/board/meetings.htm#2015.

If you have questions regarding the discussion document, please
contact Mr. Gregory Harris, Staff Air Pollution Specialist, at
(916) 327 5980 or via email at gregory.harris@arb.ca.gov.


Background

On March 6, 2015, OEHHA released the Air Toxics Hot Spots Program
Risk Assessment Guidelines: Guidance Manual for the Preparation
of Health Risk Assessments.  This document contains the new risk
assessment methodology that addresses the latest scientific
information on childhood sensitivities and the most recent data
on childhood and adult exposure to air toxics.  It represents an
accumulation of data since the passage of the Children’s Health
Protection Act of 1999 (SB 25, Stats. 1999) which required OEHHA
to ensure infants and children are explicitly addressed in
assessing risk.  The use of the new risk assessment methodology
may result in higher estimated cancer risk than what would have
been calculated using the previous 2003 OEHHA risk assessment
methodology for the same level of emissions and conditions.  More
information on the new OEHHA methodology can be found at:
http://oehha.ca.gov/air/hot_spots/hotspots2015.html.  

In general, the higher estimated risks mean that new or modified
sources of toxics may need additional emissions control.  For
existing sources, even though they meet existing rules and
regulations, additional emissions control may be needed since the
higher estimated risk might now exceed the District’s risk
reduction levels for Hot Spots requirements.  ARB and Districts
are reevaluating their programs to determine if adjustments need
to be made to permitting, source specific regulations, or Hot
Spot programs.  The “Risk Management Guidance for Stationary
Sources of Air Toxics” is intended to help Districts with their
reevaluation process and to communicate ARB and Districts’ plans,
priorities, and policies regarding implementation of the new
OEHHA risk assessment methodology.  When approved, this document
will supersede ARB’s Risk Management Guidelines for New and
Modified Sources of Toxic Air Pollutants (1993).  In addition,
this document conveys ARB’s work plan for evaluating the Board’s
Air Toxics Program and provides the updated Risk Management
Policy for Inhalation Risk Assessments which replaces the ARB’s
Interim Risk Management Policy for Inhalation based Residential
Cancer Risk (2003).



California is in a drought emergency.
Visit www.SaveOurH2O.org for water conservation tips.

ARB What's New

preload