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Table 1 Frequency of EA Leaching from UV-stressed PC-replacement products

From: Estrogenic chemicals often leach from BPA-free plastic products that are replacements for BPA-containing polycarbonate products

Ratio of EA+products/total products tested for UV stresses for each type of resin

 

MCF-7 assays

BG1Luc assays

Either

Product type

n

Saline & water

100% EtOH

10% &50% EtOH

EA+/NT

Saline & water

100% EtOH

10& &50% EtOH

EA+/NT

Overall

Acrylic

3

0/3

2/3

1/1

2/3

0/3

1/1

1/2

2/3

2/3

COC

4

0/2

0/2

 

0/2

    

0/2

COP

1

0/2

0/2

 

0/1

    

0/1

PES

3

4/4

 

2/2

3/3

    

3/3

PETG

3

1/3

0/2

 

1/3

    

1/3

PS

9

0/3

2/2

      

2/3

Tritan™

25

16/23

7/21

7/7

20/23

4/11

6/8

7/7

12/14

23/25

  1. Relative number of UV-stressed (GUV or QUV) products exhibiting significant (p < 0.01) EA reported by resin type versus extract solvents for each assay.
  2. “n” is the number of products of a resin that received at least one assay for UV-stress.
  3. “blank cell” indicates that no UV tests done for that combination of conditions’.
  4. “EA+/n Total” gives the number of products for an assay type showing significant leaching of chemicals having EA (EA+) with respect to the total number of products of that resin type (n).
  5. “EA+/n Overall” gives the number of products showing significant leaching of chemicals having EA (EA+) with respect to the total number of products of that resin type (n) using either assay type.
  6. All combinations of product, assay, and solvent types were not used, sometimes because unstressed products of a resin type exhibited significant EA (i.e., 9/11 unstressed products made from acrylic resins exhibited EA). For some cells that combine data for two extraction solvents (water and saline, 10% & 50% EtOH), the number of possible assays was double the number of products.
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Environmental Health

ISSN: 1476-069X