ANALISIS PENENTUAN STATUS MUTU AIR DENGAN MENGGUNAKAN METODE INDEKS PENCEMARAN (IP) PADA MUSIM PENGHUJAN DAN MUSIM KEMARAU (Studi Kasus : Sungai Pemali, Brebes - Jawa Tengah)

Abstract

ABSTRACT Pemali river is one of the rivers passing through Kabupaten Brebes and Kabupaten Tegal with a total length 125,40 km. Management of water quality by using the method of Pollution Index (IP) can provide input on decision-makers in order to assess the quality of water bodies for an allotment as well as taking action to improve the quality if there is a loss of quality due to the presence of polluting compounds. So that it is important to know Pemali River water quality status in the rain season and dry season. Pemali River water quality monitoring conducted in 9 segments. The results showed that there were differences in water quality status Pemali River in the rain season and dry season in 2010. Class I is a good condition there are differences in the percentage of the rain season was 8% while the dry season 11%. Class II is light polluted, in the rain season was 69% while the percentage in the dry season was 72%. Class III is being polluted, in the rain season and dry season have same percentage that is equal to 20%. And the last is a Class IV in the rain season and dry season nothing that have status quality of polluted. Several parameters have been passed pollutant limits permitted capacity. The parameters include BOD, COD, manganes, free khlorin, lead, H2S, MBAS, sulphate, dissolved solid, fecal coliform and total coliform. This is because the results of water quality monitoring of several parameters has been passed limitations of water quality standards for the class of PP. 82 Year 2001 about Water Quality Management and Control of Water Pollution. Keywords : Pemali river, Pollution Index (IP), rain season, dry season