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Table 5 Reported and rescaled Minimum Detectable Amounts (MDAs) for MP analysis using Raman or Infrared Spectroscopy reported from DeFrond et al. [27] (95% intervals based on microplastics length distribution power law value in bottled waters from Nizamali J, Mintenig SM, Koelmans AA: Assessing microplastic characteristics in bottled drinking water and air deposition samples using laser direct infrared imaging, in preparation). Desired sampling volumes derived using default mass-aligned screening level without UF’s applied (i.e., 4.6 × 106 particles)

From: Development and application of a health-based framework for informing regulatory action in relation to exposure of microplastic particles in California drinking water

LLL, meas (µm)

LUL, meas (µm)

MDA (particles)

CF

(unitless; 95% CI)

MDA

(particles; 95% CI)

Sampling Volume

(L; 95% CI)

500

5000

88

6.5 × 104

(2.0 × 103 to 2.2 × 106)

5.7 × 106

(1.7 × 105 to 1.9 × 108)

1.2

(3.8 × 10–2 to 42)

212

500

47

1.8 × 104

(1.0 × 103 to 3.4 × 105)

8.3 × 105

(4.8 × 104 to 1.6 × 107)

0.18

(1.0 × 10–2 to 3.4)

20

212

80

2.1 × 102

(40 to 1.1 × 103)

1.7 × 104

(3.2 × 103 to 9.1 × 104)

3.7 × 10–3

(7.0 × 10–4 to 2.0 × 10–2)

1

20

11

1.0

(1.0 to 1.0)

11

(11 to 11)

2.4 × 10–6

(2.4 × 10–6 to 2.5 × 10–6)