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All Journal Ensiklopedia of Journal Construction and Material Journal Journal of Infrastructural in Civil Engineering (JICE)
Nelvidawati Nelvidawati
Institut Teknologi Padang
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Law, Crime, Criminology & Criminal Justice Social Sciences

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ANALISA DESKRIPTIF PENGELOMPOKAN DATA KONSENTRASI PM2,5 BERDASARKAN HARI PADA TITIK PEMANTAUAN BUNDARAN HI JAKARTA UNTUK DATA FEBRUARI-OKTOBER 2021 Nelvidawati Nelvidawati
JICE (Journal of Infrastructural in Civil Engineering) Volume 03, Issue 01, January 2022
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.252 KB) | DOI: 10.33365/jice.v3i01.1864

Abstract

The very high flow of vehicles passing through Bundaran HI has resulted in a decrease in air quality in this area. PM2,5 is one of the pollutant substances produced from vehicle fumes that can be harmful to health. The number of vehicles that pass through this area depends on the presence of office and business activities. The purpose of this study was to determine the pattern of distribution of PM2.5 concentration data by day and how much data did not exceed the quality standard. The research was conducted by descriptive method. The results showed that the pattern of distribution of PM2.5 data which was below the quality standard occurred in February to mid-April 2021 and early June to early July. This is due to the PSBB and PPKM that apply in the city of Jakarta. When the regulation was revoked, the concentration of PM2.5 was more dominant above the quality standard. If the data is grouped by day, the percentage of PM2.5 concentration data that does not pass the quality standard is Monday 43.59%, Tuesday 35.89%, Wednesday 38.46%, Thursday 41.02%, Friday 41.03%, Saturday 56 .41%, Sunday 41.02%..
PERBANDINGAN NILAI ISPU HARIAN DI 5 TITIK PEMANTAUAN UDARA DKI JAKARTA PADA SAAT LOCKDOWN MARET 2020 Nelvidawati Nelvidawati; Angelalia Roza
Construction and Material Journal Vol. 4 No. 1 (2022): Construction and Material Journal Vol. 4 No. 1 Maret 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i1.4520

Abstract

One of the air quality conditions in the Special Capital City Region (DKI) Jakarta is the transportation sector. The air quality index is dominated by moderate conditions, even at dangerous levels. The COVID-19 pandemic caused the DKI Jakarta Provincial Government to lock down in March 2020. Research in several countries has shown that air quality has improved because people's mobility has been stopped. This study aims to determine the effect of the lockdown imposed in DKI Jakarta on its air quality and see a comparison at each point. The method used is descriptive method. The data analyzed in this study were collected from 5 points of the Air Quality Monitoring System (AQMS) monitoring tool. Based on the research, it was concluded that the lockdown imposed in DKI Jakarta only affected the location of point 1 at the Hotel Indonesia (HI) roundabout. The Air Pollution Status Index (ISPU) is dominated by good air quality conditions. Other areas such as West Jakarta, East Jakarta, North Jakarta and South Jakarta, the lockdown imposed in March 2020 did not have any effect on increasing the ISPU value. In 2021 the air quality condition in DKI Jakarta is worse than in previous years at all monitoring points since the activities have returned to normal and traffic jams frequently occur. Keywords: Air Quality Index, DKI Jakarta, Lockdown, Transportation.  
PENGOLAHAN OLI BEKAS MENJADI BAHAN BAKAR CAIR (BBC) Nurmeizon Saleh; Nelvidawati Nelvidawati
Ensiklopedia of Journal Vol 5, No 3 (2023): Volume 5 No. 3 Edisi 1 April 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.738 KB) | DOI: 10.33559/eoj.v5i3.1647

Abstract

Alat transpotasi dan industri di Indonesia terus meningkat jumlahnya dari tahun ke tahun, dengan meningkatnya jumlah tersebut maka volume limbah oli pelumas mesin juga bertambah.Berdasarkan Kementrian Lingkungan Hidup, oli bekas tergolong pada kategori limbah B3. Meskipun masih bisa dimanfaatkan, bila oli bekas tidak dikelola dengan baik, maka dapat membahayakan lingkungan. Pada penelitian ini dilakukan pengolahan dimana oli dimasukkan dalam reaktor kemudian dipanasi hingga oli dalam reaktor menguap habis dan ditampung hasil keluarannya, kemudian diukur sifat fisik dari bahan bakar cair yang dihasilkan dimana hasil analisa dengan rata-rata nilai densitas adalah 831,2kg/m2, viskositas adalah 5,8525mm2/s, kadar air adalah23,6972 %, nilai kalor 10.312,754 cal/g, dan nilai titik nyala 35,5 0C.Kata kunci;oli bekas, Pirolisis, sifat fisik bahan bakar.
Co-Authors Angelalia Roza Nurmeizon Saleh