Water and Sediment Quality Status of the Enim River, South Sumatra

2024-08-13T06:32:35+07:00

The Enim River in Muara Enim Regency, South Sumatra, remains vital for various community activities. However, as an open water source, it is vulnerable to waste inputs from surrounding human activities, which impact the river's overall condition. This research aims to assess the water and sediment quality of the Enim River by analyzing key parameters such as pH, TSS, Fe, Mn, and temperature. Additionally, it seeks to explore the correlation between Fe and Mn content in both water and sediment and evaluate the quality status of these elements. The methodology involves descriptive analysis, where the measured values are compared against established quality standards. Correlation analysis is used to examine the relationship between Fe and Mn concentrations in water and sediment. Furthermore, the Pollution Index (PI) and Geo-accumulation Index (Igeo) methods are applied to determine the quality status of water and sediment. The findings indicate that the water quality of the Enim River exceeds acceptable standards for TSS, Iron (Fe), and Manganese (Mn). Regarding sediment quality, the Iron (Fe) levels surpass the Severe Effect Level (Level 3), while Manganese (Mn) remains below the Lowest Effect Level (Level 2). The correlation analysis reveals a strong negative correlation (-1) between Fe and Mn in water and sediment, suggesting a tightly linked inverse relationship. Overall, the Enim River's water quality is classified as Mildly to Moderately Polluted. The sediment quality, however, varies. It is categorized as Extraordinarily to Extremely Severely Polluted for Iron (Fe) and Not Polluted for Manganese (Mn).

Condition of the Progo River Upstream in Temanggung Regency based on Community Structure and Saprobic Index of Plankton

2024-11-02T15:52:53+07:00

Upstream of the Progo River in Temanggung Regency, it supports the daily lives of the surrounding community. As time goes by, human activities such as land conversion, deforestation, stone mining, agricultural activities and household waste slowly affect the condition of the waters in the Progo River, so it is necessary to monitor water quality. Plankton can indicate changes in water quality because it is responsive to changes in water quality. This research aims to assess the quality of the water environment using community structure and the saprobic index of plankton. Ten sampling stations were selected using the purposive random sampling method. Plankton were collected using a plankton net, water quality measurements were carried out using a Horiba water checker, and testing in the environmental engineering laboratory. As a result, 81 plankton species had an abundance per station of 805-3,981 ind/L. The diversity index (H') indicates a stable ecosystem, the Evenness Index (e) has a fairly even distribution, and the Dominance Index (D) is at all stations with no dominant species. According to PP No. 22 of 2021, the quality of the Progo River Upstream meets environmental quality standard criteria, except for DO and total N (class I). Based on the saprobic index and bioindicator species, it indicates that all stations belong to the ?-Mesosaprobic. Several types of plankton that can be used as bioindicators of water quality include Cladophora glomerata, Tabellaria sp., and zooplankton, which are Lecane sp.

Indonesian Journal of Limnology

Water and Sediment Quality Status of the Enim River, South Sumatra

Condition of the Progo River Upstream in Temanggung Regency based on Community Structure and Saprobic Index of Plankton