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      Analisis Fluktuasi Konsentrasi PM2.5 dan Polutan Prekursornya (NOx) serta Kaitannya dengan Faktor Meteorologi di Wilayah Rural (Studi Kasus: Puncak Bogor)

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      Date
      2021-07
      Author
      Teani, Ni Putu Intan Permata
      Turyanti, Ana
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      Abstract
      Wilayah Puncak Bogor merupakan wilayah rural yang didominasi oleh kegiatan pertanian. Salah satu polutan yang dihasilkan oleh aktivitas pertanian adalah ammonia (NH3), yang berkontribusi terhadap pembentukan partikulat sekuder, dengan prekursor NOx. Fluktuasi konsentrasi partikulat dan prekursornya dipengaruhi juga oleh faktor meteorologi. Penelitian ini bertujuan untuk menganalisis hubungan konsentrasi PM2.5 dengan konsentrasi prekursornya (NOx) berdasarkan fluktuasi konsentrasi di wilayah Puncak Bogor serta menganalisis faktor meteorologi yang berkontribusi terhadap fluktuasi konsentrasi PM2.5 dan prekursornya (NOx) di wilayah Puncak Bogor. Data yang digunakan adalah data konsentrasi PM2.5, NOx, NO, NO2, suhu udara, kelembaban relatif, curah hujan, serta arah dan kecepatan angin tahun 2019 dan 2020 yang dianalisis menggunakan korelasi dan regresi linier serta menggunakan package openair di RStudio. Hasil penelitian menunjukkan konsentrasi PM2.5 dengan NOx sebagai prekursornya memiliki korelasi positif yang signifikan baik pada tahun 2019 (r = 0,68) maupun tahun 2020 (r = 0,63). Peningkatan konsentrasi PM2.5 di siang hari serta penurunan konsentrasi di malam hari dikaitkan dengan adanya pengaruh angin lembah dan angin gunung yang berhembus di wilayah Puncak Bogor. Faktor meteorologi (suhu udara, kelembaban relatif, dan kecepatan angin) memiliki nilai korelasi yang kecil terhadap fluktuasi konsentrasi PM2.5, demikian pula terhadap fluktuasi konsentrasi NOx kecuali untuk suhu udara (r = 0,3).
       
      Puncak Bogor is a rural area which is dominated by agricultural activities. One of the pollutants produced by agricultural activities is ammonia (NH3) which contributes to the secondary particulates formation, with the NOx precursor. The fluctuation of particulates and its precursor concentration are also influenced by meteorological factors. This study aims to analyze the relationship between PM2.5 concentration and its precursor (NOx) based on concentration fluctuations in Puncak Bogor and also to analyze the meteorological factors that contribute to the PM2.5 and its precursor (NOx) concentration fluctuations in Puncak Bogor. The data used are concentrations of PM2.5, NOx, NO, NO2, temperature, relative humidity, rainfall, and wind in 2019 and 2020 which were analyzed using correlation and linear regression and also using the openair package in RStudio. The results showed that PM2.5 concentration with NOx as precursors had a significant positive correlation both in 2019 (r = 0,68) and 2020 (r = 0,63). The increased and decreased of PM2.5 concentration during the day and night was influenced by valley and mountain winds that blow to the Puncak Bogor. Meteorological factors (air temperature, relative humidity, and wind speed) had a small correlation value to PM2.5 concentration fluctuations, as well as to NOx concentration fluctuations, except for air temperature (r = 0,3).
       
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      http://repository.ipb.ac.id/handle/123456789/107560
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      • UT - Geophysics and Meteorology [1720]

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