Indoor PM10 and its heavy metal composition at a roadside residential environment, Phitsanulok, Thailand

Thunwadee Srithawirat, Mohd Talib Latif, Fazrul Razman Sulaiman

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The concentrations of PM10 were measured both indoors and outdoors at 10 roadside residential buildings in Phitsanulok, Thailand during the dry and wet seasons of 2014. Seven trace metals (Zn, Fe, Pb, Cd, Ni, Cu and Cr) were also analysed in PM10. The monthly average concentrations of indoor and outdoor PM10 were 41.5 to 105.3 μg m–3 and 95.2 to 145.1 μg m–3, respectively. PM10 concentrations were significantly higher during the dry season compared to the wet season. The indoor/outdoor (I/O) ratios were less than one indicating that the particulate matter originates from the outdoor environment. Overall, the average concentrations of heavy metals in PM10 ranged from 0.2 to 2.7 μg m–3 and 0.5 to 7.1 μg m–3 for the indoor and outdoor environments, respectively. A strong positive correlation in indoor PM10 was found between Zn and Cu, Zn and Ni, and Cu and Ni. Zn and Ni, Pb and Cu, Cu and Ni, Cd and Ni, and Zn and Cu showed strong positive correlations in the outdoor environment. The enrichment factors of Zn, Cu, Pb, Cr and Ni were less than one suggesting that the metals in indoor PM10 have originated from crustal materials. For the health risk assessment, Cr was found to have the highest excess cancer risk in an evaluation using an Integrated Risk Information System.

Original languageEnglish
Pages (from-to)311-322
Number of pages12
JournalAtmosfera
Volume29
Issue number4
DOIs
Publication statusPublished - 1 Oct 2016

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heavy metal
wet season
dry season
health risk
trace metal
particulate matter
risk assessment
information system
metal
evaluation
cancer risk
residential building
material

Keywords

  • enrichment factor
  • excess cancer risk
  • heavy metal
  • I/O ratio
  • Indoor air quality

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Indoor PM10 and its heavy metal composition at a roadside residential environment, Phitsanulok, Thailand. / Srithawirat, Thunwadee; Latif, Mohd Talib; Sulaiman, Fazrul Razman.

In: Atmosfera, Vol. 29, No. 4, 01.10.2016, p. 311-322.

Research output: Contribution to journalArticle

Srithawirat, Thunwadee ; Latif, Mohd Talib ; Sulaiman, Fazrul Razman. / Indoor PM10 and its heavy metal composition at a roadside residential environment, Phitsanulok, Thailand. In: Atmosfera. 2016 ; Vol. 29, No. 4. pp. 311-322.
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