Table 1.

Initial electrical resistances (ER) of plastic objects, and ER-decrease rate constants determined during 385 days incubation in the microcosm.

Component	Material	Frequency (Hz)	Initial resistance (Ohm)	Rate constant (day−1)	R2
Air pouch	LDPE	100	13,682	0.0053	0.75
		120	13,784	0.0053	0.76
		1,000	1,989	0.0003	0.08
Air pouch	HDPE	100	6,594	0.0061	0.85
		120	6,556	0.0061	0.85
		1,000	2,483	0.0035	0.74
Coffee cup	PS	100	93,384	0.0140	0.92
		120	93,186	0.0140	0.91
		1,000	86,894	0.0138	0.91
Cup	PP	100	4,134	0.0089	0.86
		120	4,146	0.0088	0.86
		1,000	4,174	0.0088	0.86
Bottle	PET	100	183,984	0.0144	0.86
		120	187,986	0.0145	0.86
		1,000	183,993	0.0145	0.86
Bottle	PET	100	249,484	0.0165	0.90
		120	251,686	0.0165	0.90
		1,000	238,793	0.0164	0.90
Balloon	Natural Latex	100	8,794	0.0045	0.93
		120	8,976	0.0045	0.93
		1,000	9,053	0.0046	0.93
Compostable postal bag	7P0059	100	61	0.0089	0.84
		120	62	0.0097	0.84
		1,000	64	0.0075	0.96
Compostable trash bag	7P0069	100	42	0.0145	0.98
		120	40	0.0137	0.98
		1,000	38	0.0142	0.98