ANALISIS HUBUNGAN AKTIVITAS KENDARAAN BERMOTOR TERHADAP KONSENTRASI SO2 DAN NO2 DI UDARA AMBIEN JALAN RADEN INTAN KOTA MALANG

Refaldi Saputra Prodi Teknik Lingkungan Fakultas Teknik Sipil Dan Perencanaan, Institut Teknologi Nasional Malang
Hery Setyobudiarso Prodi Teknik Lingkungan ITN Malang
Hardianto Prodi Teknik Lingkungan ITN Malang

Jalan Raden Intan, Malang City is one of the roads that is dense with transportation

activities and has several residential, trade and terminal areas in Malang City. The density of

vehicle activity causes changes in air quality which can have a negative impact on settlements

around Jalan Raden Intan. This study aims to determine the relationship between motor vehicle

activity and the effect of sampling time on the concentration of SO2 and NO2 in the ambient air.

The sampling location is on Jalan Raden Intan, Malang City. This research consisted of

several steps starting from making TMC adsorbent solution for SO2, Griess Saltzman adsorption

solution for NO2, making calibration curves, and calculating vehicle volume. The concentration

was determined using a UV-Vis Thermo Scientific Genesys 20 spectrophotometer. The sampling

time was divided into weekdays (Tuesday-Wednesday) and holidays (Saturday-Sunday) with

sampling hours at 03.00-04.00, 08.00-09.00, 12.00-13.00, 16.00- 17.00, and 19.00-20.00 WIB.

The results showed that in the research conditions the concentrations of SO2 and NO2

in ambient air were correlated (medium category) with the level of motor vehicle activity on Jalan

Raden Intan, while the sampling time had no correlation. The highest concentration of SO2 was

recorded at 769.15 g/Nm3 and the concentration of NO2 was 1,732 g/Nm3. Both of them do not

exceed the ambient air quality standards, namely 900 g/Nm3 and 400 g/Nm3.

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