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. 2020 Feb 10;7(3):198–205. doi: 10.1021/acs.estlett.0c00090

Table 1. Descriptive Statistics for CPs Measured in Hand Wipe Samples (n = 60) and Estimated Daily Dermal Exposure to CPs for Adults Based on These Dataa.

  vSCCPs SCCPs MCCPs LCCPs sumCP
DF 40% 97% 100% 100%  
Mass (ng/participant)
geometric mean <0.70 170 490 150 870
median <0.70 160 490 150 950
range <0.70–13 22–2400 33–7400 10–8500 43–18000
Mass per Hand Surface Area (pg/cm2)
geometric mean <0.53 160 460 150 830
median <0.53 160 520 120 830
range 0.16–17 11–3400 16–11000 7.4–12000 35–26000
Chlorine Content (w/w)
geometric mean 63% Cl 58% Cl 52% Cl 46% Cl 51% Cl
median 63% Cl 58% Cl 52% Cl 46% Cl 51% Cl
range 59–65% Cl 56–60% Cl 47–55% Cl 40–52% Cl 40–56% Cl
Estimated Daily Dermal Exposure [ng (kg of bw)−1 day–1]
5P not available 0.12 0.55 0.038 0.71
median not available 0.62 2.4 0.3 3.8
95P 0.045 3.6 11 5.5 17
RfDb not available 2300 6000 71000 not available
a

The sums of CPs (sumCP) were calculated from individual results. The detection frequency (DF) is the percentage of samples with a mass above the MDLs.

b

Reference dose (RfD) values [ng (kg of bw)−1 day–1] for SCCPs, MCCPs, and LCCPs were calculated by dividing the respective LOEL values [2.3,48 6, and 7149 mg (kg of bw)−1 day–1] by a safety factor of 1000.