Digest 1. [ciaq] EPA News Release - PCBs in Caulk

[Guest guest]

:

1. EPA put out a fact sheet on PCBs in caulk as well:

EPA-747-F-09-003

Fact Sheet for Schools:

Caulk containing PCBs may be present in older schools and buildings

If you can't find it - email me for a PDF version.

2. PCBs were used as plasticizer in paints, coatings on galbestos

sheets, glazing, caulks, sealants, gaskets, ductboard mastic, etc. I have

formulae dating to the 1930s.

3. I have done a reasonable amount of work in the area of paints and

PCBs in general (liquid, groundwater, soil, contaminated components) and I

have a few comments:

a. I find it deplorable that they report this as a significant risk

without any risk assessment work to demonstrate how much leaches and what is

estimated dose is compared to the MRL (Minimum Risk Level as published by

ATSDR).

b. They have data on paints and have rules under TSCA already for

surfaces, but fail to mention that, or even apparently to make use of it.

c. I have data on ca. 2,800 samples of others and my own 300+ dermal,

surface, and air (solid and vapor) during removal (including blasting) and

haven't seen the risk. (one of those articles I meant to write but my

co-author retired and left the business world)

Tony

Ref:

1. Havics, " Tony " : Chapter 27, Polychlorinated Biphenyls

(PCBs) in Managing Hazardous Materials, Ed by J. Leonard and J. Frick.

Institute of Hazardous Materials Management, Rockville, MD. 2002. pp.

543-564.

2. (revised version) Havics, " Tony " : Chapter 27,

Polychlorinated Biphenyls (PCBs) in Managing Hazardous Materials, Revised

Ed, Ed by J. Leonard and J. Frick. Institute of Hazardous Materials

Management, Rockville, MD. 2009. pp. 547-568.

3. Havics, " PCBs and Paint " , presented at Indiana Society of Hazardous

Materials Managers (ISHMM) meeting, Indianapolis, IN.

4. Havics: Unpublished reports 1988-2009.

.......................................................................

" Tony " Havics, CHMM, CIH, PE

pH2, LLC

5250 E US 36, Suite 830

Avon, IN 46123

www.ph2llc.com

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90% of Risk Management is knowing where to place the decimal point...any

consultant can give you the other 10%(SM)

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