Electronic Theses and Dissertation

Penelitian “Sebaran Nitrat Dan Fosfat Di Perairan Utara Aceh” ini dilakukan pada Bulan Agustus 2022 yang bertujuan untuk mengetahui sebaran nitrat dan fosfat di Perairan Utara Aceh. Metode penelitian yang digunakan adalah purposive sampling. Konsentrasi nitrat di Perairan Utara Aceh berkisar antara 0,5 mg/l – 0,6 mg/l, sedangkan konsentrasi fosfat berkisar antara 0,06 mg/l – 0,29 mg/l. Pola sebaran nitrat pada bagian barat (1,4,5) ditemukan lebih rendah dibandingkan disebelah timur (2,3,6,7,8), sedangkan fosfat terdapat pola sebaran yang lebih tinggi pada bagian barat (1,4,5) dibandingkan dengan pada bagian timur (2,3,6,7,8). Berdasarkan hasil uji, konsentrasi nitrat dan fosfat di Perairan Utara Aceh telah melebihi ambang batas yang telah ditetapkan pada Peraturan Pemerintah Republik Indonesia nomor 22 Tahun 2021 Penyelenggaraan Perlindungan Dan Pengelolaan Lingkungan Hidup. Berdasarkan tingkat kesuburan Perairan, konsentrasi nitrat di Perairan Utara Aceh tergolong kategori oligotrofik sedangkan konsentrasi fosfat tergolong kedalam kategori eutrofik dan hypertrofik. Tingginya konsentrasi nitrat dan fosfat di Perairan Utara Aceh diduga disebabkan oleh beberapa faktor seperti aliran limbah rumah tangga, aktivitas perkapalan, dan pembukaan lahan perkebunan dan pertanian. Hasil analisis regresi linier menunjukkan bahwa ketersediaan nutrien berupa nitrat dan fosfat di Perairan dipengaruhi oleh beberapa faktor salah satunya dipengaruhi oleh faktor suhu. Suhu mempengaruhi nitrat dan fosfat sebesar 40,5% dan memiliki nilai korelasi hubungan yang kuat.
Kata Kunci: Konsentrasi, Nitrat, Fosfat, Perairan Utara Aceh

The study of "Nitrate and Phosphate Distribution in North Aceh Waters" was conducted in August 2022 which aims to determine the distribution of nitrates and phosphates in North Aceh Waters. The research method used was purposive sampling. The nitrate concentration in the North Aceh Waters ranged from 0.5 mg/l - 0.6 mg/l, while the phosphate concentration ranged from 0.06 mg/l - 0.29 mg/l. The distribution pattern of nitrate in the western part (1,4,5) was found to be lower than in the eastern part (2,3,6,7,8), while phosphate had a higher distribution pattern in the western part (1,4,5) compared to the eastern part (2,3,6,7,8). Based on the test results, the concentration of nitrate and phosphate in North Aceh Waters has exceeded the threshold set in the Government Regulation of the Republic of Indonesia number 22 of 2021 Implementation of Environmental Protection and Management. Based on the fertility level of the waters, the nitrate concentration in the North Aceh Waters is classified as an oligotrophic category while the phosphate concentration is classified into the eutrophic and hypertrophic categories. The high concentrations of nitrate and phosphate in the North Aceh Waters are thought to be caused by several factors such as household waste streams, shipping activities, and land clearing for plantations and agriculture. The results of linear regression analysis show that the availability of nutrients in the form of nitrate and phosphate in the waters is influenced by several factors, one of which is influenced by the temperature factor. Temperature affects nitrate and phosphate by 40.5% and has a strong correlation value. Keywords: Concentration, Nitrate, Phosphate, North Aceh Waters.