ANALISIS MODEL SEBARAN BAHAN PENCEMAR Dl PERAIRAN SELAT NGUAN, BATAM

Abstract

Analysis of the pollutant transport model was conducted to understand the
magtitude, their pattern and spreading speed of the pollutant at Nguan narrow
channel of Batam. The RMA2 (Resource Management Associates) analysis was
employed to solve those phenomena. The target analysis of the pollutant is
suspended particulate matter (sediment), a rnost dominant pollutant matter within
this area. The result shows that the spreading pollutant was strongly associated
with the monsoonal system, current speed, tidal system and the pollutant source.
The southward direction of sediment transport was inluenced by the northwest
monsoon and the tidal flood. While the northward direction was affected by the
the southeast monsoon and the ebb tide. The current speed was identified as
main factor causing the flushing out magnitude of the water mass at the channel, in
which the flushing out in the northwest monsoon was faster than that in the southeast
monsoon. As consequence, the water resident time was to be short, the pollutant
was easily to be cleaned out and as the result, the water quality within the channel
was to be excellent.