Water Report 1997
The degree of particulate matter, or (COD), in July for
the Fuefuki and Makado rivers [7mgO/l(ppm)] was higher than
the TAKIDOU river [2mgO/l(ppm)] in the mountains of
Nakamichi-minami. If the clear-cut timber-cutting methods petroleum-based agriculture
used in this area continue, erosion could contribute toward higher (COD) levels in the
future.
A high alkalai stream in Toyotomi-mura (July 1997)