Table 5.

Descriptive statistics concerning the chemical characterization and quantification of TiO₂ nanoparticles (TiO₂-NPs) (<100 nm) in packaged seafood products.

Canned Tuna	Most Frequent Size NPs (nm)	Mean Diameter NPs (nm)	Number of NPs/g	NPs mg/kg	%NPs on Ps-Tot.
Mean	66	72	5.26 × 107	0.0380	58.5
SD	7	4	2.19 × 107	0.0298	13.3
Min.	56	65	9.34 × 106	0.0062	32
Max.	82	79	1.02 × 108	0.1251	76
Canned Mackerel	Most Frequent size NPs (nm)	Mean Diameter NPs (nm)	Number of NPs/g	NPs mg/Kg	%NPs on Ps-Tot.
Mean	77	78	7.84 × 106	0.0085	57.4
SD	11	8	2.42 × 106	0.0053	12.2
Min.	48	54	5.24 × 106	0.0020	39
Max.	91	86	1.23 × 107	0.0206	73
Canned Anchovy	Most Frequent size NPs (nm)	Mean Diameter NPs (nm)	Number of NPs/g	NPs mg/Kg	%NPs on Ps-Tot.
Mean	93	89	5.16 × 106	0.0092	31.6
SD	2	1	9.30 × 105	0.0019	6.78
Min.	91	88	4.36 × 106	0.0078	23
Max.	96	92	7.24 × 106	0.0137	43
Canned Clam	Most Frequent size NPs (nm)	Mean Diameter NPs (nm)	Number of NPs/g	NPs mg/Kg	%NPs on Ps-Tot.
Mean	72	89	5.37 × 107	0.1116	51.4
SD	5	6	8.34 × 106	0.0254	5.70
Min.	63	81	4.00 × 107	0.0650	41
Max.	81	97	7.00 × 107	0.1403	61