Dissolved Oxygen (DO) is about 1.63 mg/l and
Biochemical Oxygen Demand (BOD) is 14.09 mg/l.
Although the level of DO can be categorized the
quality of water into class 4 for consumption but
requires special treatment process before using,
however the level of BOD is classified to use
only for navigation since the level of BOD is
greater than 4 mg/l. In addition, the attention
should be paid for the noise level generated by
long-tailed boat services. Although the existing
service create the average noise level (Leq)
about 64.8-73 or approximately 69 dBA that is
lower than the standard of 100 dBA. However,
for the future service, the poor maintenance of
the boat machine can increase the noise level
of engine to be above than the standard that
required for proper inspect for maintain the
standard of pollution control level.
5.2 Safety
Although previous statistics do not
indicate any severe accidents of water transportation
services, lacking of proper safety
equipment and poor maintenance of safety gear
can be clearly seen in the long-tailed boats as
demonstrated in Figure 17.
Lack of sufficient safety jackets inside
these boats can be easily noticed. This safety