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BIOMONITORING DAMPAK EKOLOGIS MERKURI DI DAERAH ALIRAN SUNGAI TORAUT KABUPATEN BOLAANG MONGONDOW Rantung, John L.; Wantasen, Sofia
EUGENIA Vol 22, No 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.2.2016.12956

Abstract

ABSTRACT Traditional gold mining in Toraut Watershed Bolaang Mongondow District was used Merkuri Amalgamation that produced tailing. Tailing are discharged to river and environment sorounding that can enter Toraut River and flows to the down stream Mongondow river (beach Inobonto). This study aims: 1) To determine Hg concentrations in River Toraut up stream, middle stream and down stream; 2) To determine Hg concentrations in sediment of the River Toraut up stream, middle stream and down stream; 3) To determine Hg concentrations in aquatic plantsof the River Toraut up stream, middle stream and down stream.  Location research in River Toraut up stream, middle stream and down stream. Data collected by observation and laboratory analysis Merkuri concentration in River Toraut, sediment, and aquatic plant. Method data analysis are descriptif, Graphic Method and to compare with standart Goverment PP. No.82/2001 Class II. The analysis showed that the concentration of Merkuri in River Toraut up stream, in the middle stream and down stream is<0.00005 mg/l. The concentration of Merkuri in sediments River Toraut up stream, the middle stream and down stream ranged < 0.05-1.45 mg/kg dry. The concentration of Merkuri in tissue plant aquatic location up stream of the River Toraut, the middle stream and down stream range < 0.001-0.013 mg /kg wet.Keywords : biomonitoring, ecological impacts merkuri, Toraut Watershed
DAMPAK TRANSFORMASI NITROGEN TERHADAP LINGKUNGAN BIOTIK DI DANAU TONDANO PROVINSI SULAWESI UTARA Wantasen, Sofia; Sudarmadji, Sudarmadji; Sugiharto, Eko; Suprayogi, Slamet
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 19, No 2 (2012)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1.84 KB)

Abstract

Nitrogen di lingkungan akan mengalami transformasi ke dalam bentuk-bentuk senyawa antara lain nitrat (N03), nitrit (N02-), ammonia (NH3). Transformasi dari nitrogen menjadi nitrat, nitrit, dan ammonia akan berdampak negatif terhadap lingkungan biotic yaitu terbentuknya kondisi toksik, berdampak negatif pada biota air (flora akuatik), dominansi flora akuatik danau serta berubahnya fungsi ekosistern danau. Penelitian ini bertujuan untuk mengkaji dampak transformasi nitrogen terhadap Iingkungan biotik (flora akuatik) di Danau Tondano. Pengambilan sam pel kualitas air dilakukan dengan menggunakan metode composite sampling pada 24 lokasi sampel di Danau Tondano yaitu 6 sampel di bagian timur dan au, 3 sampel di bagian barat danau, 4 sampel di bagian selatan danau dan 10 sam pel di bagian tengah danau dan 1 sampel di bagian utara Danau Tondano, kemudian dilakukan pengukuran in situ untuk parameter temperatur air, dan pH. Analisis parameter nitrat, nitrit, ammonia dilakukan di Laboratorium Balai Teknik Kesehatan Lingkungan Provinsi Sulawesi Utara. Lokasi pengambilan sampel flora akuatik adalah 1 sampel di bagian barat Danau tondano (Paletoan), 4 sampel di bagian timur danau (Eris, Tasuka, Ranomerut), dan 1 sampel di bag ian utara danau (Tolour). Hasil analisis laboratorium menunjukkan bahwa transformasi nitrogen menjadi nitrat, nitrit, ammonia di permukaan Danau Tondano terkonsentrasi tinggi di bagian timur dan bagian tengah Danau Tondano. flora akuatik yang mendominasi perairan adalah Eceng Gondok ( Eichhornia crassipes) dengan Indeks Nilai Penting (INP) 60-155.
TRANSFORMASI NITROGEN DI OUTLET SALURAN IRIGASI DAERAH ALIRAN SUNGAI TONDANO Wantasen, Sofia
Sainteknol : Jurnal Sains dan Teknologi Vol 13, No 1 (2015): June 2015
Publisher : Unnes Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v13i1.5337

Abstract

Nitrogen di lingkungan akan mengalami transformasi ke dalam bentuk senyawa nitrat (NO 3 - ), nitrit (NO 2 - ), ammonia (NH 3 ) Transformasi nitrogen tersebut dipengaruhi oleh kondisi lingkungan. Penelitian ini bertujuan untuk mengkaji transformasi nitrogen di outlet saluran irigasi Daerah Aliran Sungai . (DAS) Tondano. Cara penelitian adalah observasi lapangan terhadap aktivitas pertanian dan pengambilan sampel kualitas air dilakukan dengan menggunakan metode composite sampling pada 25 lokasi sampel di outlet saluran irigasi. Analisis parameter nitrat, nitrit, ammonia dilakukan di Laboratorium Balai Teknik Kesehatan Lingkungan Provinsi Sulawesi Utara. Analisis data menggunakan Metode Grafik dan membandingkan dengan Baku Mutu sesuai PP No. 82/2001 Kelas II. Hasil penelitian menunjukkan bahwa transformasi nitrogen (nitrat, nitrit, ammonia) di outlet saluran irigasi persawahan bagian selatan (konsentrasi NO 3 : 8,6-18,4 mg/l; NO 2 : 0,14-0,25 mg/l; NH 0-2,6 mg/l); outlet saluran irigasi persawahan bagian barat (konsentrasi NO 3 3 : 1,33-12,2 mg/l; NO : 0-0,77 mg/l; NH 0,01-0,86 mg/l) dan outlet saluran irigasi persawahan bagian timur
KAJIAN KUALITAS AIR SUNGAI BENING SEBAGAI SUMBER AIR IRIGASI PERSAWAHAN DI DESA MOPUYA SELATAN II KECAMATAN DUMOGA UTARA KABUPATEN BOLAANG MONGONDOW Yusuf, Hendra; Wantasen, Sofia; Lumingkewas, Adeleyda M. W.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.21022

Abstract

ABSTRACT  The purpose of this study was to determine the water quality of Bening River in Subdistrict Dumoga Utara District Bolaang Mongondow which would be used as rice field irrigation water in the South Mopuya II Village, Subdistrict Dumoga Utara District Bolaang Mongondow. The study was conducted for three months (3 months), namely April to June, the location of water sampling is the Bening River in South Mopuya II Village, then analyzed in the Water Quality Laboratory. The results of the analysis show that the Bening River Sodium Adsorption Ratio (SAR) concentration in the Upper Area (0.61), in theBening River Lower Area (0.59), is in good quality.  DHL (Electrical Conductivity) concentrations in the Bening River in the Upper Area (2.39.10-5dS/m), in the Bening River Lower Area (2.59.10-5dS/m), are in good quality.  TDS (Total Dissolved Solid) concentration in the Bening River in the Upper Area (167 mg/l), in the Bening River Lower Area (181 mg/l), in good quality. Chloride (Cl) Concentration on Bening River in the Upper Area (0.031 me/l), in the Bening River Lower Area (0.051 me/l), in good quality. Boron (B) Concentration on Bening River in the Upper Area (0.005 mg/l), in the Bening River Lower Area (0.005 mg/l), in good quality.  Nitrate (NO3) concentrations in the Bening River in the Upper Area (0.147 me/l), in the Bening River Lower Area (0.179 mg/l), in the good category.  pH concentration in the Bening River in the Upper Area (8.19), in the Bening River Lower Area (7.55), in good quality.  The results of the analysis of Bening River water quality are still in good category or meet the requirements in accordance with the value of Irrigation Water Quality Standards Ayers and Wetscot, 1985.  Keywords:, Water Quality, Sungai Bening, Irigation Water.
TRANSFORMASI NITROGEN DI OUTLET SALURAN IRIGASI DAERAH ALIRAN SUNGAI TONDANO Wantasen, Sofia
Sainteknol : Jurnal Sains dan Teknologi Vol 13, No 1 (2015): June 2015
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v13i1.5337

Abstract

Nitrogen di lingkungan akan mengalami transformasi ke dalam bentuk senyawa nitrat (NO 3 - ), nitrit (NO 2 - ), ammonia (NH 3 ) Transformasi nitrogen tersebut dipengaruhi oleh kondisi lingkungan. Penelitian ini bertujuan untuk mengkaji transformasi nitrogen di outlet saluran irigasi Daerah Aliran Sungai . (DAS) Tondano. Cara penelitian adalah observasi lapangan terhadap aktivitas pertanian dan pengambilan sampel kualitas air dilakukan dengan menggunakan metode composite sampling pada 25 lokasi sampel di outlet saluran irigasi. Analisis parameter nitrat, nitrit, ammonia dilakukan di Laboratorium Balai Teknik Kesehatan Lingkungan Provinsi Sulawesi Utara. Analisis data menggunakan Metode Grafik dan membandingkan dengan Baku Mutu sesuai PP No. 82/2001 Kelas II. Hasil penelitian menunjukkan bahwa transformasi nitrogen (nitrat, nitrit, ammonia) di outlet saluran irigasi persawahan bagian selatan (konsentrasi NO 3 : 8,6-18,4 mg/l; NO 2 : 0,14-0,25 mg/l; NH 0-2,6 mg/l); outlet saluran irigasi persawahan bagian barat (konsentrasi NO 3 3 : 1,33-12,2 mg/l; NO : 0-0,77 mg/l; NH 0,01-0,86 mg/l) dan outlet saluran irigasi persawahan bagian timur
KAJIAN KUALITAS AIR IRIGASI TALAWAAN SEBAGAI SUMBER AIR PERSAWAHAN DI DESA TALAWAAN KECAMATAN TALAWAAN KABUPATEN MINAHASA UTARA Sagai, Billy Fandy.; Wantasen, Sofia; arore, Annie E.
COCOS Vol 5, No 5 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30589

Abstract

ABSTRACTWater has a very important role in life because all living things in this world need water.Plants and animals are mostly composed of water. Plant cells contain more than 75% waterand animal cells contain more than 67%. Less than 0.5% of water can be used directly forhuman purposes. Less than 0.5% of water can be used directly for human purposes. Thepurpose of this study was to determine the Talawaan irrigation water quality associated withSodium Adsorption Ratio (SAR) in Talawaan District, North Minahasa Regency. Talawaanirrigation water quality in Talawaan District includes SAR parameters in the TertiaryIrrigation Channel (1) of 1.56 me / L and SAR in Tertiary Irrigation Channels (2) of 0.92 me /L meets the requirements of irrigation water quality in the good category.Keywords: Water Quality, Sungai Talawaan, Irigation Water
THE QUALITY OF IRRIGATION WATER ON THE CULTIVATION OF RICE PLANTS (Oryza sativa L.) Mawali, Fadlika; Wantasen, Sofia
Jurnal Agroekoteknologi Terapan Vol 1, No 2 (2020): EDISI JULI-DESEMBER 2020
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v1i2.34068

Abstract

Water quality is the nature of the water and the content of living beings, substances, energy, or other components in the water. Water quality in general is shown by the quality or the condition of the water that is associated with an activity or specific purposes. Water quality will be different from one activity to another. The quality of the water for purposes of irrigation with different water quality for drinking water purposes. The irrigation water used for agriculture should meet the quality standards of irrigation water according to Government Regulation No. 82 years 2001 is included in class IV so that the quality of irrigation water deserves to be watering for plants. Keywoards:  irrigation; water.  AbstrakKualitas air adalah sifat air dan kandungan makhluk hidup, zat, energi atau komponen lain di dalam air. Kualitas air secara umum ditunjukkan oleh mutu atau kondisi air yang dikaitkan dengan suatu kegiatan atau keperluan tertentu. Kualitas air akan berbeda dari suatu kegiatan ke kegiatan lain. Kualitas air untuk keperluan irigasi berbeda dengan kualitas air untuk keperluan air minum. Air irigasi yang digunakan untuk pertanian sebaiknya memenuhi baku mutu air irigasi sesuai Peraturan Pemerintah Nomor 82 tahun 2001 termasuk dalam kelas IV sehingga kualitas air irigasi layak dijadikan pengairan untuk tanaman. Kata kunci:  irigasi; air.