Locating sources of hazardous gas emissions using dual pollution rose plots and open path Fourier transform infrared spectroscopy

Lung Yu Sung, Ruei Hou Shie, Chia Jung Lu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A new approach employing two pollution rose plots to locate the sources of multiple hazardous gas emissions was proposed and tested in an industrial area. The data used for constructing the pollution rose plots were obtained from two side-by-side measurements of open-path Fourier Transform Infrared (OP-FTIR) spectrometers during one week of continuous analysis on the rooftop of a semiconductor plant. Hazardous gases such as CF4, C2F6, CH3OH, NH3, NO2, and SF6 were found and quantified at the ppb level by both OP-FTIR measurement sites. The data of the top 20% highest concentrations and associated wind directions were used to construct the pollution rose plots. Pollution source probability contours for each compound were constructed using the probability-product of directional probability from two pollution rose plots. Hot spots for SF6, CF4, NO2, and C2F6 pointed to the stack area of the plant, but the sources of CH3OH and NH3 were found outside of this plant. The influences of parameters for this approach such as the variation in wind direction, lower limit concentration threshold and the nearby buildings were discussed.

Original languageEnglish
Pages (from-to)30-40
Number of pages11
JournalJournal of Hazardous Materials
Volume265
DOIs
Publication statusPublished - 2014 Jan 30

Fingerprint

Fourier Transform Infrared Spectroscopy
Gas emissions
FTIR spectroscopy
Fourier transform infrared spectroscopy
Pollution
Gases
Fourier Analysis
pollution
gas
wind direction
Fourier transform
Semiconductors
Fourier transforms
pollutant source
Infrared spectrometers
spectrometer
Semiconductor materials
Infrared radiation
Direction compound

Keywords

  • Emission source
  • Hazardous gases
  • Open-path FTIR
  • Pollution rose plot

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Locating sources of hazardous gas emissions using dual pollution rose plots and open path Fourier transform infrared spectroscopy. / Sung, Lung Yu; Shie, Ruei Hou; Lu, Chia Jung.

In: Journal of Hazardous Materials, Vol. 265, 30.01.2014, p. 30-40.

Research output: Contribution to journalArticle

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