Spatial distribution of SO2 and NO2 in Bogor City's Air via Passive Sampling Method

Authors

  • Uswatun Hasanah Universitas Pakuan
  • Sutanto Sutanto Universitas Pakuan
  • Herlina Febbiyanti Universitas Pakuan

DOI:

https://doi.org/10.19109/4yqce834

Keywords:

Ambient Air, Sulfur Dioxide, Nitrogen Dioxide, Passive Sampler, Spatial Distribution

Abstract

Air pollution arises when substances such as sulfur dioxide (SO₂) and nitrogen dioxide (NO₂) are released into the atmosphere due to human activities, resulting in the degradation of air quality and potentially contributing to respiratory problems. This study seeks to assess the levels and spatial distribution of SO₂ and NO₂ concentrations in Bogor City through the passive sampling method, in accordance with SNI 7119-16:2023 and SNI 7119-17:2023. Sampling was performed at nine locations over a 14-day period. NO₂ concentrations were determined using spectrophotometry, while SO₂ levels were measured via ion chromatography. The passive sampling technique relies on the diffusion of pollutant molecules into a filter impregnated with an absorbent solution. The concentrations obtained were used to calculate the Air Quality Index (ISPU), and the spatial distribution was mapped using Surfer 11 software. The results revealed that NO₂ concentrations ranged from 7.46 to 13.53 µg/m³, while SO₂ concentrations ranged from 3.77 to 13.25 µg/m³. The corresponding ISPU values ranged from 4.66 to 9.59 for NO₂ and 3.62 to 12.74 for SO₂, both of which fall within the "good" category (0–50) as defined by Ministry of Environment and Forestry Regulation No. 14 of 2020. The spatial distribution of pollutants demonstrated an increasing concentration from the southern and western regions toward the northern and eastern areas of Bogor City, which is likely associated with elevated vehicular traffic in these zones.

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Published

2024-02-29

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How to Cite

Spatial distribution of SO2 and NO2 in Bogor City’s Air via Passive Sampling Method. (2024). ALKIMIA : Jurnal Ilmu Kimia Dan Terapan, 8(1), 15-27. https://doi.org/10.19109/4yqce834