Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

Table 2

Trace metal analysis for the oxo-biodegradable bags tested.

Element concentration (mg kg^-1)	Type I	Type II	Type III	Reference PE	EC/94/62 [44]
Barium (Ba)	542	110	0.36	1.12	—
Calcium (Ca)	6,616	58,598	61,004	66,594	—
Cadmium (Cd)	0.06	0.14	0.14	0.42	100
Chromium (Cr)	0.48	876	0.83	2.91	100
Copper (Cu)	194	0.25	15.7	12.0	—
Iron (Fe)	17.3	82	17.2	141	—
Mercury (Hg)	0.28	0.27	0.28	0.31	—
Magnesium (Mg)	439	251	221	1,117	—
Manganese (Mn)	29.2	13.6	4.39	7.33	—
Nickel (Ni)	0.48	1.33	0.47	1.64	—
Lead (Pb)	0.64	3,584	0.63	0.70	100
Sulphur (S)	322	150	48	75	—
Antimony (Sb)	1.00	0.98	0.99	1.09	—
Tin (Sn)	5.63	5.48	5.53	6.13	—
Titanium (Ti)	37.2	4.43	147	18.9	—
Vanadium (V)	0.040	0.039	0.040	0.044	—
Zinc (Zn)	324	62	212	221	—

Note to reader: boldface indicates the highest concentration in the studied sample population. The italicized reference concentration is shown when it exceeds the tested population permissible limit.