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srp -- Meeting of the Scientific Review Panel on Toxic Air Contaminants

Posted: 16 Oct 2008 17:33:16
This meeting of the Scientific Review Panel on Toxic Air
Contaminants will occur on October 30, 2008 9:00 am
. 

LOCATION:
Millberry Conference Center
University of California, San Francisco
500 Parnassus Avenue
San Francisco, California  94143    (415) 476-2035

AGENDA
1.	Continuation of the Panel’s review of the draft Reference
Exposure Levels for acrolein, acetaldehyde, arsenic, mercury,
manganese, and formaldehyde (September 2008)

The Panel will continue its review of these RELs, developed
utilizing the recently approved methods for developing acute,
8-hour, and chronic health protective levels (reference exposure
levels [RELs]) used in non-cancer risk assessments.  Pursuant to
Health and Safety Code section 44360 (b) (2), OEHHA must develop
health risk assessment guidelines under the Air Toxics Hot Spots
Program.  These guidelines include RELs.  Some of the proposed
RELS are new and others will replace older values.  The new RELs
address the mandate under the Children’s Environmental Health
Protection Act (SB 25, Escutia, 1999; Health and Safety Code
sections 39669.5 et seq.) to ensure that risk assessment methods
adequately protect infants, children, and other sensitive
subpopulations.

The revised proposed RELs are located at
http://www.oehha.ca.gov/air/toxic_contaminants/rels101008.html#srp

(Transcript of the June, 18, 2008 meeting is available at:
http://www.arb.ca.gov/srp/srpmeetings.htm)

2.	Review of the draft report “Air Toxics Hot Spots Risk
Assessment Guidelines Part II: Technical Support Document for
Cancer Potency Factors” (October 2008)

OEHHA will present a report containing revised methodologies for
developing cancer unit risks and potency factors for chemicals in
the Air Toxics Hot Spots program.  This program (AB 2588,
Connelly, 1998) requires stationary sources to report substances
released into the air by collecting emission data to ascertain
health risks.  

Pursuant to Health and Safety Code section 44360 (b) (2), OEHHA
must develop health risk assessment guidelines under the Air
Toxics Hot Spots Program.  This document replaces and updates
previous guidelines for cancer risk assessment by revising the
procedures for deriving potency factors and applying cancer
potency factors to address information that suggests that
children may be especially susceptible to certain carcinogens. 
These procedures are designed to address the mandate under the
Children’s Environmental Health Protection Act (SB 25, Escutia,
1999; Health and Safety Code sections 39669.5 et seq.) to ensure
that risk assessment methods adequately protect infants,
children, and other sensitive subpopulations.
http://www.oehha.ca.gov/air/toxic_contaminants/rels101008.html#srp

3	Consideration of administrative matters.

The Panel may discuss various administrative matters and
scheduling of future meetings.

For the full view of the Notice of Public Meeting, please go
to:

http://www.arb.ca.gov/srp/srpmeetings.htm

Questions regarding the agenda, please contact Jim Behrmann,
Liaison
at jbehrman@arb.ca.gov or (916) 322-8278.

Questions regarding the site/location please contact Peter
Mathews
at pmathews@arb.ca.gov or (916) 323-8711.

To receive notices for upcoming SRP Meetings please go to:
http://www.arb.ca.gov/listserv/listserv.php and sign up for the
SRP list serve.

Thank you.

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