Fig. 12(a)–(d). The particle number concentrations of AgNPs were
7.04 × 107 ± 0.42 × 107 and 4.04 × 107 ± 0.11 × 107 partilces/L for
Chendian Lake and Guiyu River respectively, and particle number concentrations
of AuNPs were 6.38 × 107 ± 1.12 × 107 and 6.48 × 107 ±
0.4 × 107 partilces/L for Chendian Lake and Guiyu River respectively. It
confirmed that AgNPs and AuNPs were existed in Guiyu River and
Chendian Lake, due to the open burning, acid baths and toxic dumping
pour pollution of dismantle old electronics.Meanwhile, fewpulseswere