Figure 1.

Profiles of chemical classes in wristband samples worn by 251 office workers in the USA, UK, China, and India. Note: only chemicals contributing to more than 1% of the height of the tallest bar in the chemical class (in at least one country) are shown. Chemical classes are presented on different y-axis scales. Caveat: the different physical-chemical properties of the chemicals may influence their respective sampling uptakes and thus concentrations on the wristbands, so comparisons should focus on country differences within an individual chemical, not comparisons between concentrations of different chemicals.