NUTTER, McCLENNEN & FISH ONE INTERNATIONAL PLACE BOSTON, MASSACHUSETTS 02110-2699 TELEPHONE- 617 439-2000 FACSIMILE: 617 973-974S DIRECT DIAI NUMBER. (617)439-2253 May 5, 1992 18371-1 John R.

NUTTER, McCLENNEN & FISH ONE INTERNATIONAL PLACE BOSTON, MASSACHUSETTS 02110-2699 TELEPHONE: 617 439-2000 FACSIMILE: 617 973-9748 June 4, 1991 18371-1 DIRECT DIAL NUMBER: (617) 439-2460 John R.

CHICAGO WASHINGTON.

FEB 01 '95 05514PM 5IDLEY AUSTIN NY CH3CA.OQ OS A2VQEXE5 WaSKXNOTON, D-C.

Substance: CU/S-02.13 - CU/D-02.27 SCOEL/SUM/94-final June 2002 Recommendation from Scientific Committee on Occupational Exposure Limits (SCOEL) for Silica, Crystalline (respirable dust) Chemical name SiO2 modifications silicon dioxide, crystalline Molecular formula Molecular weight Synonyms quartz, a-quartz, low quartz CAS number 14808-60-7 Synonyms cristobalite, a-cristobalite, low cristobalite CAS number 14464-46-1 Synonyms tridymite, a-tridymite, low tridymite CAS number 15468-32-3 SiO2 60.09 Quartz Cristobalite Tridymite Temperature at which the a-modification is transformed into the high-temperature pmodification Melting point Density at 20C (g/m3) Crystal form 573C 1610C 2.65 g/cm3 trigonal 270C 1713C 2.33 g/cm3 tetragonal 130C -- 2.27 g/cm3 monoclinic Occurrence/use Silica (silicon dioxide (SiO2)), occurs in either a crystalline or non-crystalline (amorphous) form.

Safety in Mines Research Advisory Committee Final Report TECHNOLOGY TRANSFER OF SIMRAC PROJECT HEALTH 611 TO ENHANCE CLINICAL PERFORMANCE: PROCESS-BASED PERFORMANCE REVIEW FOR THE DIAGNOSIS OF PULMONARY TUBERCULOSIS DR JILL MURRAY National Centre for Occupational Health, Department of Health.

To: From: Cc: Bcc: Received Date: Subject: McClure, Jack JL SCC-HSE-OE <jack.mcclure@shell.com> Clegg, Patsy M SCC-CHSE-PC <lO=SHELLlOU=MSXSCC/CN=RECIPIENTS/CN=PH197432> 2005-02-1019:17:11 GMT RE: FW: API Benzene Toxicology Task Group - Scope Discussion and Shell representation Jack, Most sincere apologies.

Exposure Assessment in a Hospital-Based Case-Control Study of Acute Myeloid Leukemia and Lymphoma in Shanghai, China Authors and Affiliation: Thomas Armstrong, TWA8HR Occupational Hygiene Consulting; Otto Wong, Applied Health Sciences; Hua Fu, Fudan University School of Public Health; Yimei Zhou, ExxonMobii Production Research Company; Chi Zhang, Fudan-Cinpathogen Clinical?

March 2, 2007 Via Electronic and U.S.

To: benzconsort-oc@listserve.api.org <benzconsort-oc@listserve.api.org>; benzconsort- tc@ listserve. api. org <benzconsort-tc@ listserve. api. org>; benzconsort-cc@ listserve. api. org <benzconsort- cc@listserve.api.org> From: Matt Todd <ToddM@api.org> Cc: Bcc: Received Date: 2005-09-01 19:57:08 GMT Subject: Shanghai Health Study Update: September 1, 2005 Shanghai Health Study Update Announcements: * The 2nd quarter 2005 Financial Report has been approved and is now posted on the "Financials" page. * The progress reports for the first half of 2005 from Wong, Irons, and Fudan University were received and are now posted on the "Technical" page. * An Oversight Committee conference call is scheduled for September 12th at 1 PM Eastern. * An Oversight, Technical, Communications Committees conference call is scheduled for October 11 th at 11 AM Eastern. * Information on the upcoming 2005 SHS Annual Meeting and Symposium will be made available and on the homepage.

May 9,2005 CERTIFIED MAIL - RETURN RECEIPT REQUESTED Document Processing Center (7407M) (Attn: TSCA 8(e) Coordinator) Office of Pollution Prevention and Toxics U.S.

To: BenzConsort-OC@listserve.api.org <BenzConsort-OC@listserve.api.org>; BenzConsort-TC@listserve.api.org <BenzConsort-TC@listserve.api.org> From: Russell White <whiter@api.org> Cc: Bcc: Received Date: 2007-03-1214:07:32 GMT Subject: Shanghai Health Study - conference call scheduled for Thursday, March 15 at 10 AM EDT.

To: BenzConsort-OC@listserve.api.org <BenzConsort-OC@listserve.api.org>; BenzConsort-TC@listserve.api.org <BenzConsort-TC@listserve.api.org> From: Bruce Jarnot <jarnotb@api.org> Cc: Russell White <whiter@api.org>; Howard Feldman <Feldman@api.org> Bcc: Received Date: 2006-09-0616:14:59 GMT Subject: Shanghai Update...

To: BenzConsort-OC@listserve.api.org <BenzConsort-OC@listserve.api.org>; BenzConsort-TC@listserve.api.org <BenzConsort-TC@listserve.api.org> From: Russell White <whiter@api.org> Cc: Howard Feldman <Feldman@api.org> Bcc: Received Date: 2006-09-2000:42:20 GMT Subject: Shanghai Health Study - Conference call Wednesday, Sept 20 Date: September 20 Time: 11AM EDT Call in #: 866-443-0059 Passcode: 202 682 8344 Proposed agenda; 1.

To: 'Matt Todd' <ToddM@api.org>; BHRC Oversight Committee (E-mail) <benzconsort- oc@listserve.api.org> From: Clegg, Patsy M SCC-CHSE-PC </O=SHE LUOU=MSXSCC/CN=RE CI PI ENTS/CN=PH197432> Cc: Bcc: Received Date: 2004-07-1917:49:17 GMT Subject: RE: BHRC - amend#2 to Benzene Consortium agrmt for review Matt, I was on vacation when the email came.