Seasonal and long term variations of surface ozone concentrations in Malaysian Borneo

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dc.contributor.authorMohd Talib Latif
dc.contributor.authorDoreena Dominick
dc.contributor.authorFatimah Ahamad
dc.contributor.authorNur Shuhada Ahamad
dc.contributor.authorMd Firoz Khan
dc.contributor.authorLiew Juneng
dc.contributor.authorChung Jing Xiang
dc.date.accessioned2017-04-09T08:00:15Z
dc.date.available2017-04-09T08:00:15Z
dc.date.issued2016
dc.description.abstractMalaysian Borneo has a lower population density and is an area known for its lush rainforests. However, changes in pollutant profiles are expected due to increasing urbanisation and commercial-industrial activities. This study aims to determine the variation of surface O3 concentration recorded at seven selected stations inMalaysian Borneo. Hourly surface data covering the period 2002 to 2013, obtained fromtheMalaysian Department of Environment (DOE),were analysed using statisticalmethods. The results showthat the concentrations ofO3 recorded in Malaysian Borneo during the study period were below the maximum Malaysian Air Quality Standard of 100 ppbv. The hourly average and maximum O3 concentrations of 31 and 92 ppbv reported at Bintulu (S3) respectivelywere the highes tamong the concentrations recorded at the sampling stations. Further investigation on precursors showthat sampling sites located near to local petrochemical industrial activities, such as Bintulu (S3) andMiri (S4), have higher NO2/NO ratios (between 3.21 and 5.67) compared to other stations. The normalisedO3 values recorded at all stationswere higher during theweekend compared toweekdays (unlike its precursors) which suggests the influence of O3 titration by NO during weekdaysen_US
dc.identifier.citationVol.573 ;494-504 p.en_US
dc.identifier.issn489697
dc.identifier.urihttp://hdl.handle.net/123456789/5437
dc.language.isoenen_US
dc.publisherScience of the Total Environmenten_US
dc.subjectSurface ozoneen_US
dc.subjectOzone precursorsen_US
dc.subjectMeteorological factorsen_US
dc.subjectSeasonal variationsen_US
dc.titleSeasonal and long term variations of surface ozone concentrations in Malaysian Borneoen_US
dc.typeArticleen_US
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