Harvey Richmond/RTP/USEPA/US 

10/31/2007 04:50 PM

	

To

"Johansson, Robert" <Robert_C._Johansson@omb.eop.gov>,
Margo_Schwab@omb.eop.gov, hking@omb.eop.gov

cc

Lydia Wegman/RTP/USEPA/US@EPA, Karen Martin/RTP/USEPA/US@EPA,
Crabtree.Tricia@epamail.epa.gov@EPA

Subject

Fw: Response to your follow-up questions on contribution of ranges to
nonaccidental mortality associated with ozone just meeting current
standard   AND Two Ozone public comments









As we discussed earlier today, here's the email with the files that
Lydia sent in the Spring with tables showing the contribution of ranges
to nonaccidental mortality associated with ozone just meeting the
current standard.

You also requested the docket id's for two of the public comments.  I
have the docket id for the UARG, October 9, 2007 comments and it is:
EPA-HQ-OAR-2005-0172-4183.  I haven't located the docket id for the
Univ. of Rochester report, but I do have an electronic file for this
report, which I've attached below.

Harvey

    Harvey M. Richmond

    Ambient Standards Group

    Health and Environmental Impacts Division

    U.S. EPA

    C504-06

    RTP, NC  27711

    (office) 919-541-5271

    (fax) 919-541-0237

    (email)  richmond.harvey@epa.gov

----- Forwarded by Harvey Richmond/RTP/USEPA/US on 10/31/2007 04:40 PM
-----

Lydia Wegman/RTP/USEPA/US 

05/08/2007 10:26 AM

	

To

afarrell@ceq.eop.gov, afraas@omb.eop.gov, rjohansson@omb.eop.gov

cc

wegman.lydia@epa.gov, richmond.harvey@epa.gov, martin.karen@epa.gov

Subject

Response to your follow-up questions on contribution of ranges to
nonaccidental mortality associated with ozone just meeting current
standard









Amy, Art and Rob,

Please find attached Harvey's response to Art's question about the
contribution of different levels of ozone to nonaccidental mortality.  
I hope this answers your questions.  Please let me know if you have
further questions about this material.  

Rob, as to our Friday meeting that we discussed this morning, I learned
that Harvey will not be available on Friday.  I don't know if any of
your follow-up questions are about the risk assessment, but if they are,
we will have to postpone those to next week when Harvey is available, or
move the meeting back to Thursday.  If none of the questions are about
the risk assessment, we should be able to proceed with our Friday
meeting as planned.   Thanks. 

Lydia

----- Forwarded by Lydia Wegman/RTP/USEPA/US on 05/08/2007 10:16 AM
-----

Harvey Richmond/RTP/USEPA/US 

05/08/2007 10:00 AM

	

To

Lydia Wegman/RTP/USEPA/US@EPA

cc

Karen Martin/RTP/USEPA/US@EPA, Dave Mckee/RTP/USEPA/US@EPA

Subject

Re: Follow-up to CEQ question on contribution of ranges to nonaccidental
mortality associated with ozone just meeting current standard









Lydia,

In response to the request from OMB made during the meetings arranged by
CEQ, attached are two Excel files that contain tables showing the
estimated number of cases, and associated 95% credible intervals, for
nonaccidental mortality based on the risk assessment broken down by the
number of cases estimated to occur due to exposure to different 24-hr O3
intervals associated with just meeting the current 8-hr standard in 12
urban areas.  The tables, and Figure 5-15a,b in the Staff Paper, present
risks broken down by 24-hr intervals because the epidemiological studies
report effects related to the average of the 24-hr concentrations across
the monitors in an urban area.  To provide some perspective on the daily
maximum 8-hr average that would be associated with each 24-hr interval,
we note that the 8-hr daily maximum concentrations at the highest (i.e.,
design value) monitor are, on average, roughly twice the 24-hr average
O3 concentrations provided in these tables.  For example, the 0.03-0.04
ppm 24-hr range in the table roughly corresponds to the highest monitor
in the urban area observing a daily maximum 8-hr average in the range
0.06-0.08 ppm.

 

    Harvey M. Richmond

    Ambient Standards Group

    Health and Environmental Impacts Division

    U.S. EPA

    C504-06

    RTP, NC  27711

    (office) 919-541-5271

    (fax) 919-541-0237

    (email)  richmond.harvey@epa.gov

