Run by

The LEAD Group Inc
The Lead Education and Abatement Design Group
Working to eliminate lead poisoning globally and to protect the
environment from lead in all its uses: past, current and new uses
ABN 25 819 463 114
Australians! Take action
today. Is lead harming
you & your kids? Buy low
cost, NATA accredited
laboratory lead test kits
here. Sample your dust,
soil, water, paint, toys,
jewellery, ceramics
what's new 

Water Lead test Kits

Proceeds from our DIY Home Lead Assessment kit sales go towards the
Keeping Australian Lead Out of Leaded Petrol Initiative.

Search this site
Search tips 
What's New

About Us
bell system lead poisoning
Contact Us
Council Lead Project
Library-Fact Sheets
Home Page
Media Releases
Referral Lists
Site Map
Slide Shows-Films
Useful Links

Visitor Number

  QUESTION: Cobalt and lead in degradable polyethylene bags using the "TDPA" system. 20 Jul 2004, New South Wales Australia

I stumbled upon your page when looking for something entirely different but I was interested as I have some lead n my system - source unknown.
You may be interested to know that degradable polyethylene bags using the "TDPA" system use heavy metals to initiate the degradation including cobalt and lead.

Tests done by BPI in the US show that the amount of each heavy metal used varies substantially. In three tests the level of lead detected was 627 ppm, 926-941 ppm and ND. So far as I am aware no tests have been done in Australia.

I have a copy of the test report if you wish to see it.

ANSWER: 20 Jul 2004

Dear Neil,

I'd be fascinated to see a copy of the results, including for cobalt. I had no idea lead had such a use. Please keep in touch. This could be something for Greenpeace to know about or anyone else who might pay for the testing. God knows, we have no money.

Elizabeth O'Brien

About Us | bell system lead poisoning | Contact Us | Council LEAD Project | egroups | Library - Fact Sheets | Home Page | Media Releases
| Q & A | Referral lists | Reports | Site Map | Slide Shows - Films | Subscription | Useful Links |  Search this Site
Privacy Policy | Disclaimer
Last Updated 24 April 2012
Copyright The LEAD Group Inc. 1991- 2012
PO Box 161 Summer Hill NSW 2130 Australia
Phone: +61 2 9716 0014