MEANING OF CUMULONIMBUS CLOUD AS BACKGROUND ART IN MAMORU HOSODA’S THE GIRL WHO LEAPT THROUGH TIME ANIMATION FILM

• Main Author: Anugerah Munggaran, Gelar
• Format: Theses
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/70595
• Institution: Institut Teknologi Bandung

One sector that plays a major role in river pollution in the Upper Citarum area is the textile industry sector. River pollution will have an impact on the composition of macrozoobenthos. The purpose of this study was to determine the level of pollution, diversity of macrozoobenthos, and macrozoobenthic taxa as bioindicators of river pollution in the textile industrial area in the Upper Citarum Watershed. The sampling period for water, sediment, and macrozoobenthos is from May – October 2021. The research location is located in rivers in residential and textile industrial areas in the Upper Citarum Watershed. Data analysis includes the determination of the water pollution index with the Nemerow index, the use of the Shannon-Wiener diversity index and the Important Value Index (IVI), and Principal Component Analysis (PCA). The results of the analysis stated that the river in the textile industry area was moderately and heavily polluted. The Importance Value Index indicates the dominance of Tubifex sp. on the river in the textile industry area and the codomination of Chironomus sp. and Hydropsyche sp. in the river upstream of Citarum. Macrozoobenthos communities with higher diversity exist in residential areas upstream compared to textile industrial areas which indicate environmental deterioration. Based on the results of PCA analysis, it can be seen that there is a separation of station characters based on the physico-chemical characteristics of water and sediment. The location upstream of Citarum has the key parameters of NO3, Hydropsyche sp., Pseudocloeon sp., and Callibaetis sp. The Majalaya textile industrial area has key parameters BOD, COD, turbidity, conductivity, oil and fat, ammonia, and TSS with taxa that can be used as bioindicators are Tubifex sp.