fig2
![Organophosphate esters in tree bark and human hair in Weifang and Yantai, Shandong Province, China: concentrations, profiles and sources](https://image.oaes.cc/bf216913-d3f7-44d2-98a4-df2d9c4b982d/4824.fig.2.jpg)
Figure 2. Contributions of nine organophosphate esters in human hair and tree bark samples from Weifang (WF) and Yantai (YT), Shandong Province, China. TCEP: Tris(2-chloroethyl)phosphate; TCPP: tris(2-chloroisopropyl)phosphate;TDCPP: tris(2,3-dichloropropyl)phosphate; TEP: tris(2-ethylhexyl)phosphate; TNBP: tris(n-butyl)phosphate; TPHP: triphenyl phosphate; TOCP: tris(o-cresyl)phosphate; TMCP: tris(m-cresyl)phosphate; TPCP: tris(p-cresyl)phosphate.