Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia

Siti Munirah Johari, Che Abd. Rahim Mohamed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

210Pb is widely used as an atmospheric tracer as its parent, 222Rn is continuously produced in the atmosphere from soil emanation. This study was conducted to observe the changes of 210Pb activity based on temporal and spatial factor using PM10 samples. PM10 were sampled by Malaysian Meteorological Department in four station consist of two station from both east and west coast of Peninsular Malaysia in 2007. Activity level of 210Pb was determined using the Tennelec XLB-5 Gross Alpha-Beta Counter, Canberra, after the ingrowth of 210Pb by the outgrowth of 210Bi. Basically, the analysed result showed that three to four significant peaks during northeast monsoon, southwest monsoon and intermonsoon. For east coast which comprises Kuantan and Mersing stations, the highest 210Pb activity in Kuantan was in April and June with 45.73 ± 3.66 mBq/kg and 48.20 ± 3.33 mBq/kg, respectively. While in Mersing, 210Pb activity showed the highest in April and July with 45.77 ± 2.67 mBq/kg and 44.21 ± 2.42 mBq/kg, respectively. As for the west coast, it comprises Setiawan and Chuping stations. Setiawan station showed the highest 210Pb activity in October and July with 48.90 ± 2.52 mBq/kg and 44.09 ± 2.34 mBq/kg, respectively. Chuping showed the highest 210Pb activity in March and October with 39.96 ± 1.94 mBq/kg and 14.98 ± 0.80 mBq/kg, respectively. It shows that 210Pb activity in Chuping is much lower than in Setiawan because of its location is in a rural area. This study showed that during southwest monsoon from May to September, it clearly showed that 210Pb activity is higher in west coast than in east coast as wind sources come from southwest of Peninsular Malaysia.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
PublisherAmerican Institute of Physics Inc.
Pages216-220
Number of pages5
Volume1584
ISBN (Print)9780735412163
DOIs
Publication statusPublished - 2014
EventInternational Nuclear Science, Technology and Engineering Conference 2013: Advancing Nuclear Research and Energy Development, iNuSTEC 2013 - Kuala Lumpur
Duration: 30 Sep 20132 Oct 2013

Other

OtherInternational Nuclear Science, Technology and Engineering Conference 2013: Advancing Nuclear Research and Energy Development, iNuSTEC 2013
CityKuala Lumpur
Period30/9/132/10/13

Fingerprint

Malaysia
monsoons
coasts
stations
rural areas
tracers
soils
counters
atmospheres

Keywords

  • atmospheric tracer
  • monsoon

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Johari, S. M., & Mohamed, C. A. R. (2014). Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia. In AIP Conference Proceedings (Vol. 1584, pp. 216-220). American Institute of Physics Inc.. https://doi.org/10.1063/1.4866134

Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia. / Johari, Siti Munirah; Mohamed, Che Abd. Rahim.

AIP Conference Proceedings. Vol. 1584 American Institute of Physics Inc., 2014. p. 216-220.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Johari, SM & Mohamed, CAR 2014, Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia. in AIP Conference Proceedings. vol. 1584, American Institute of Physics Inc., pp. 216-220, International Nuclear Science, Technology and Engineering Conference 2013: Advancing Nuclear Research and Energy Development, iNuSTEC 2013, Kuala Lumpur, 30/9/13. https://doi.org/10.1063/1.4866134
Johari SM, Mohamed CAR. Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia. In AIP Conference Proceedings. Vol. 1584. American Institute of Physics Inc. 2014. p. 216-220 https://doi.org/10.1063/1.4866134
Johari, Siti Munirah ; Mohamed, Che Abd. Rahim. / Atmospheric 210Pb changes during monsoon in east and west coast of Peninsular Malaysia. AIP Conference Proceedings. Vol. 1584 American Institute of Physics Inc., 2014. pp. 216-220
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