Table 1.

Average numbers of particles per liter (n) and the standard deviation for water from three different types of bottles as reported in two studies. The study by Schymansky et al. only included particles larger than 5 µm. Legend: PET, polyester.

Bottle Type	Oβmann et al. [38]			Schymansky et al. [40]
	n ± SD	% > 5 µm	n >5 µm	n ± SD	Min–Max Range
Single use PET	2649 ± 2857	1.7%	45	14 ± 14	2–44
Reusable PET	4889 ± 5432	4.6%	224	118 ± 88	28–241
Glass	6292 ± 10521	22.3%	1403	50 ± 52	4–156