Fig. 2.
Box and whisker plot showing (a) Se, (b) Cd and (c) As contents in wet zone (WZ), intermediate zone (IZ) and dry zone (DZ) of Sri Lanka
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.