Pengaruh Air Limbah Kota Palangka Raya Pada Kualitas Air Sungai Kahayan

Rivers are environmentally vulnerable to pollution, mainly due to domestic activities. The water quality of the Kahayan River in Palangka Raya city is currently threatened by domestic waste that has not been improperly taken. This study aims, first, to assess whether the quality of wastewater in the Kahayan river meets the specified wastewater quality standards. Second, to determine the effect of wastewater on the Kahayan River in Palangka Raya City. The quality of wastewater and the quality of the Kahayan River water were tested using the parameters of pH, BOD, COD, TSS, OilFat, Ammonia and Total Coliform. The results are, then, compared with applicable quality standards, and analysed using a statistical approach. As the results, the BOD, TSS, Oil-Fat and Coliform parameters have exceeded the domestic wastewater quality threshold. Consequently, the wastewater should not be released into the river. Besides, the wastewater has not been significantly affecting river water property, except for the COD parameter at morning measurement time

STOK IKAN KAKAPAR (Belontia hasselti) YANG TERTANGKAP ALAT TANGKAP TEMPIRAI DI DANAU BAGANTUNG

Penelitian ini bertujuan ntuk mengetahui stok ikan kakapar yang tertangkap didanau Bagantun menggunakan temprai. Metode yang digunakan adalah deskriptif survei, survei lapangan untuk mendapatkan informasi stok ikan kakapar yang tertangkap tempirai pendataan distribusi frekuensi, hubungan panjang berat, komposisi hasil tangkapan dan kurva ogif seleksi. Penelitian dilaksanakan di Danau Bagantung Kelurahan Tanjung Taruna Kecamatan Jabiren Raya Kabupaten Pulang Pisau. Sedangkan penelitian dilaksanakan dari tanggal 3 sampai 16 Desember 2017. Hasil penelitian menunjukan persamaan distribusi frekuensi observasi dan teoritis memiliki nilai minimum dan maksimum yang sama dengan rata-rata 7,23 cm dan modus 6,9 cm. Sedangkan hubungan panjang-berat berdasarkan data panjang dan berat ikan kakapar mempunyai sebaran panjang 3,4 cm sampai 10,6 cm dan sebaran berat 3 gram sampai 43 gram. Selama penelitian ikan yang tertangkap sebanyak 391 ekor yang terdiri dari 11 jenis ikan. komposisi untuk ikan kakapar yaitu sebesar 254 ekor ( 65%), ikan patung sebesar 66 ekor (16.9%), ikan lele sebesar 53 ekor (13.6%), ikan lais sebesar 4 ekor (1.02%), ikan kihung/mihung, baung, biawan yang masing- masing berjumlah 3 ekor dengan persentase (0.76%), selanjutnya diikuti ikan karandang sebesar 2 ekor (0.51%), dan yang terakhir adalah ikan pundung, buruk, kelabau/kalawau dengan masing-masing berjumlah 1 ekor (0.25%)

JENIS DAN KELIMPAHAN ZOOPLANKTON YANG BERENANG BEBAS DAN TERLEPAS DARI PERAKARAN ECENG GONDOK (Eichornia crassipes), KIAMBANG(Salvinia natans) DAN APU-APU (Pistia stratiotes) DI ZONA INTERRHIZONE

Penelitian ini dilakukan untuk mengamati kelimpahan jenis zooplankton yang terdapat di bawah eceng gondok (Eichornia crassipes), apu-apu (Pistia stratiotes) dan kiambang (Salvinia natans) serta untuk mengetahui hubungan zooplankton dengan beberapa parameter lingkungan. Penelitian ini dilakukan di kolam Peat Techno Park Universitas Palangka Raya terhadap 3 jenis tutupan spesies tumbuhan air dengan 4 kali pengambilan sampel. Kelimpahan zooplankton dihitung dengan menggunakan rumus kelimpahan. Hasil penelitian menunjukkan ditemukan dan teridentifikasinya 3 kelompok zooplankton yaitu Rotifera, Copepoda dan Cladocera yang terdiri dari 6 genera seperti Trichocerca sp., Anuraeopsis sp., Brachionus sp., dan Bosmina sp. Disebutkan juga Cyclopoid dan Nauplli dari copepoda. Di antara 3 spesies makrofita terapung, spesies zooplankton lebih disukai dibandingkan eceng gondok, dengan jumlah mencapai 792 ind/l. Parameter kualitas air yang diukur adalah DO berkisar (berkisar antara 3,3 mg/l hingga 3,6 mg/l), pH (berkisar antara 7,65 hingga 7,96), dan suhu air (berkisar antara 24,75oC hingga 25,25oC). Zona di bawah tumbuhan air merupakan habitat yang sangat penting untuk reproduksi dan tempat berkembang biaknya zooplankton

OVERVIEW OF TEMPERATURE, PH, DO AND WATER DEPTH AT THE UNIVERSITY OF PALANGKA RAYA’S PEAT TECHNO PARK (PTP)

The aquatic environment can be divided into two based on physical and chemical differences, namely: freshwater environment and marine aquatic environment. There are two kinds of freshwater waters, namely: calm (lentic) waters such as lakes, reservoirs and ponds; Flowing waters (lotic) for example rivers, sewers and ditches. In lotic habitats there are two main zones, namely the rushing water zone and the hood zone or calm zone. While in calm or lentic waters in general there are three main zones, namely: the littoral zone, the limnetic zone and the profundal zone (Cantonati et al., 2020). A water can be influenced by several factors including temperature, pH, DO and depth, therefore it is very important if in this case it is discussed about the overview of the waters at PTP Universitas Palangka Raya. By researching the parameters above, it can be seen that: Z, temperature, pH, DO. The correlation between DO and depth is -0.35** meaning it is significant at 0.01 or below 0.05. The temperature with DO is also significant but positive between temperature and DO because the value is 0.41** due to one quadrant according to PC

Pukung Pahewan Kearifan Lokal Suku Dayak Untuk Dunia

Nilai-­nilai Pukung Pahewan diselidiki dan dijelaskan dengan menggunakan beragam perspektif, mulai dari metafisik (agama dan budaya) hingga empiris (perikanan, lingkungan, dan relasi sosial). Bukan hanya itu, agar identitas ini menjadi jelas, maka kami juga melakukan komparasi dengan sejumlah destinasi wisata lokal dan nasional, dan juga mancanegara, seperti Vietnam, Swiss, Jerman, dan Austria. Harapannya, nilai­-nilai Pukung Pahewan bukan hanya ‘mewujud’, tetapi juga jelas persamaan dan perbedaannya jika dibanding dengan nilai-­nilai yang dimiliki oleh negara lainnya. Hasil penyelidikan inilah yang kemudian dituangkan menjadi buku yang ada di genggaman pembaca

Pukung Pahewan Kearifan Lokal Suku Dayak Untuk Dunia

Nilai-­nilai Pukung Pahewan diselidiki dan dijelaskan dengan menggunakan beragam perspektif, mulai dari metafisik (agama dan budaya) hingga empiris (perikanan, lingkungan, dan relasi sosial). Bukan hanya itu, agar identitas ini menjadi jelas, maka kami juga melakukan komparasi dengan sejumlah destinasi wisata lokal dan nasional, dan juga mancanegara, seperti Vietnam, Swiss, Jerman, dan Austria. Harapannya, nilai­-nilai Pukung Pahewan bukan hanya ‘mewujud’, tetapi juga jelas persamaan dan perbedaannya jika dibanding dengan nilai-­nilai yang dimiliki oleh negara lainnya. Hasil penyelidikan inilah yang kemudian dituangkan menjadi buku yang ada di genggaman pembaca

INTRODUKSI TEKNOLOGI INOVASI AMBUL UNTUK BUDIDAYA TANAMAN SAYURAN DI KALIMANTAN TENGAH

Arut Bawah is a settlement that is always flooded every year due to Kahayan river run off . Residents perform various activities on the water, and transportation between housing residents with one another, using wooden boards. The conditions is not possible if it is used to grow crops. It is certainly limiting factor for household food needs, including the need for vegetables. Flooded land use around residential has not been done because the technology is not yet known. Through these activities, the community is expected to implement one of the local knowledges of the environment-friendly cultivation in swampy areas with ambul system so that people can still grow crops to sustain life. It consists of meeting nutritional needs, as well as improving food security in water-saturated soil conditions. This community service was conducted by the various stages of 1) outreach and dissemination of technology ambul 2) training of making ambul and 3) planting a variety of vegetables in ambul. The results showed that ambul can be used as a technology for cultivation in flooded areas. The introduction of technology ambul got a positive response from residents Arut Bawah Palangkaraya Central Kalimantan. Keywords: ambul, vegetables and flooded areas.</p

Mechanism of the toxicity induced by natural humic acid on human vascular endothelial cells

Humic acid (HA), a group of high-molecular weight organic compounds characterized by an ability to bind heavy metals, is normally found in natural water. Although the impairment of vascular endothelial cells in the presence of humic substances has been reported to be involved in some diseases, the mechanisms responsible for this involvement remain unclear. In this study, we examined the cytotoxicity of HA obtained from peatland in Central Kalimantan, Indonesia, to human vascular endothelial cells, as well as the mechanisms behind these effects. It was found that 50 mg/L HA showed cytotoxicity, which we considered to be mediated by apoptosis through the mitochondrial pathway because of an increase in the expression of caspases 6 and 9 in response to HA administration. In addition, this cytotoxicity was enhanced when cells in this experimental system were exposed to oxidative stress, while it was decreased by the addition of vitamin C. Thus, we conclude that the apoptosis induced by HA depends upon oxidative stress. Furthermore, an iron chelator, DFO, showed a tendency to decrease HA-induced cytotoxicity, suggesting that iron may potentially mediate HA-induced oxidative stress. In conclusion, long-term consumption of HA-rich water obtained from our study area may cause damage to endothelial cells and subsequent chronic health problems. © 2012 Wiley Periodicals, Inc. Environ Toxicol, 2012.Early View (Online Version of Record published before inclusion in an issue