Seasonal variations of atmospheric particulate matter and its content of heavy metals in Klang valley, Malaysia

Rasheida E. Elhadi, Ahmad Makmom Abdullah, Abdul Halim Abdullah, Zulfa Hanan Ash’Aari, Firoz Khan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The composition of atmospheric particulate matter (PM10) can help to identify its potential sources and possible impact on human health. This study investigates the seasonal variations and sources of heavy metals in PM10 in the Cheras area. PM10 samples were collected on a 24-h basis using a high-volume air sampler in June during the southwest monsoon and in December during the northeast monsoon of 2014. Selected hazardous trace metals, viz., As, Pb, Cu, Ni, Cd, Co, Mn, Zn, Fe, Cr, V and Ba, were measured by inductively coupled plasma mass spectrometry (ICP-MS). The result showed that the mean concentrations of PM10 were 207.63 ± 7.82 and 138.32 ± 4.67 during the southwest and northeast monsoons, respectively. The heavy metal concentrations during the southwest monsoon followed the order Ba > Fe > Cu > V > Zn > Pb > Mn > Cr > As > Ni > Cd > Co, while those during the northeast monsoon followed the order Zn > Fe > Ba > Cu > Pb > V > Cr > As > Mn > Ni > Cd > Co. The results of the enrichment factors (EFs) showed that the major trace metals mainly originated from anthropogenic sources. A correlation analysis indicated that pairs of trace metals from similar sources were suspended in PM10 in the ambient air. The source apportionment by principal component analysis (PCA) and cluster analysis (CA) suggested that vehicle exhaust and brake and tire wear, industrial emissions and the re-suspension of dust, as well as oil combustion, were the most dominant sources of PM10 in this study.

Original languageEnglish
Pages (from-to)1148-1161
Number of pages14
JournalAerosol and Air Quality Research
Volume18
Issue number5
DOIs
Publication statusPublished - 1 May 2018

Fingerprint

Particulate Matter
Heavy Metals
Heavy metals
particulate matter
monsoon
seasonal variation
heavy metal
valley
trace metal
Industrial emissions
Inductively coupled plasma mass spectrometry
Cluster analysis
Air
Brakes
Tires
Principal component analysis
Dust
Suspensions
Oils
Wear of materials

Keywords

  • Enrichment factors
  • Heavy metals
  • Meteorological factors
  • Multivariate modeling
  • Particulate matter
  • PM
  • Seasonal change

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

Cite this

Seasonal variations of atmospheric particulate matter and its content of heavy metals in Klang valley, Malaysia. / Elhadi, Rasheida E.; Abdullah, Ahmad Makmom; Abdullah, Abdul Halim; Ash’Aari, Zulfa Hanan; Khan, Firoz.

In: Aerosol and Air Quality Research, Vol. 18, No. 5, 01.05.2018, p. 1148-1161.

Research output: Contribution to journalArticle

Elhadi, Rasheida E. ; Abdullah, Ahmad Makmom ; Abdullah, Abdul Halim ; Ash’Aari, Zulfa Hanan ; Khan, Firoz. / Seasonal variations of atmospheric particulate matter and its content of heavy metals in Klang valley, Malaysia. In: Aerosol and Air Quality Research. 2018 ; Vol. 18, No. 5. pp. 1148-1161.
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