Spatial assessment on ambient air quality status: a case study in Klang, Selangor

Shafii, Nur Zahidah; Saudi, Ahmad Shakir Mohd; Mahmud, M. N.; Rizman, Zairi Ismael

doi:10.4314/jfas.v9i4s.58

Cited by 5 publications

(12 citation statements)

References 8 publications

(10 reference statements)

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“…The ANN was calculated using the formula as displayed in Equation 3and 4: Finally, Statistical Process Control (SPC) was implemented to determine the pattern of the major air pollutants and air pollutant index (API) in Kuching, Sarawak. SPC can be a great tool to define a complete quantitative procedure in observing and assessing environmental performance [19]. SPC (individual chart) was conducted to assess the pattern of the most significant air pollutants in Kuching, Sarawak utilizing seven years of database (2009-2015).…”

Section: Discussionmentioning

confidence: 99%

“…The most significant air pollutants were obtained from the factor loadings in the PCA. Three straight lines were established which represented Upper Control Limit (UCL), Central Line (CL) and Lower Control Limit (LCL) [19]. The pattern of air pollutants were compared to the control limits and the national air quality standard limit [19].…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, vehicle emission was the chief source of those pollutants [22]. Besides, the concentration of pollutants can be altered by topography, climate and economic activities [19]. The strong positive correlation between API and PM10 indicated that the higher the concentration of the PM10, the higher the level of API.…”

Section: The Association Between Air Pollutants and Air Pollutant Indmentioning

confidence: 99%

“…Therefore, the Varimax Rotation process was executed by using these two PCs. PCs with eigenvalues of less than one (< 1.0) were omitted from further analysis [19,15]. According to [14], the eigenvalue with result more than one is the significant indicator to represent the frequency of Varimax rotation that should be implemented in the PCA analysis of the study.…”

Section: Identification Of the Most Significant Parameters That Affecmentioning

confidence: 99%

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Identification Source of Variation on Regional Impact of Air Quality Pattern using Chemometric Techniques in Kuching, Sarawak

Zakri

Saudi

Juahir

et al. 2018

IJET

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Air pollution has been considered a devastating environmental issue that can negatively impact human health and the environment. Kuching as one of the capital cities in Malaysia is also affected by air pollution and unsatisfactory air quality condition. Thus, the main objective is to identify the source of variation on regional impact of air quality pattern in Kuching, Sarawak. A seven-year (2009-2015) database was acquired from the Malaysia Department of Environment (DOE). The data were analysed using several Chemometric Techniques. The findings demonstrated strong positive correlation of Particulate Matter below than 10 microns (PM10) and API (r = 0.994). In addition, Principal Component Analysis (PCA) and Artificial Neural Network (ANN) revealed that Carbon Monoxide (CO), Ozone (O3) and PM10 were the most significant air pollutants in Kuching. Based on the results in the Statistical Process Chart (SPC) analysis, PM10,COand O3 values exceeded the Control Limit (CL) of SPC. This study concluded that the application of air quality model in this study is relevant for mitigating action plan of air quality in Kuching, Sarawak, as it is of paramount importance to continuously monitor and manage the quality of air for the sustainability of the environment and human health.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: The Association Between Air Pollutants and Air Pollutant Indmentioning

confidence: 99%

Section: Identification Of the Most Significant Parameters That Affecmentioning

confidence: 99%

See 2 more Smart Citations

Identification Source of Variation on Regional Impact of Air Quality Pattern using Chemometric Techniques in Kuching, Sarawak

Zakri

Saudi

Juahir

et al. 2018

IJET

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“…The Air Quality [17][18][19][20][21][22][23][24][25] Guidelines set for the first time a guideline value for particulate matter and the aim of the guidelines is to achieve the lowest concentrations of pollutant in atmosphere as possible [11].…”

Section: Review Of Literaturesmentioning

confidence: 99%

A study on air pollution concentration at Desa parkcity construction site

Saudi

Nurulshyha

Mahmud

et al. 2018

J. Fundam and Appl Sci.

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This study assesses the effect of construction workers exposure towards the air pollution the correlation between meteorological factor with the particulate matter and other gases concentration at a construction site in DesaParkcity. The concentration of PM was collected by using low volume sampler meanwhile CO, CO with the particulate matter concentration. There is a significant association between factor with the concentration orCO, CO 2 , SO 2 and NO 2 at DesaParkcity air pollution; construction worker; meteorological factor.

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Flood Risk Pattern Recognition Using Chemometric Techniques Approach in Golok River, Kelantan

Zaidee¹,

Saudi²,

Kamarudin³

et al. 2018

IJET

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This study was implemented to evaluate the flood risk pattern recognition in Golok River, Kelantan. Based on Spearman correlation test, it showed that water level and suspended solid was very strong and significant (p < 0.0001). There was also a weak correlation of coefficient of stream flow and rainfall with the changes of water level as the p-value close to 1. Suspended solid has strong corresponded in changing the rate of water level, as it described the rate of surface run-off that flowed into the water body. However, the risk of flood in study area is irrelevant to the monsoon season. Principle Component Analysis (PCA), the most sensitive parameters that contribute to the flood occurrence were identified with variability R2 value of 0.812 and 0.764. Expansion and development by human activities contribute to the incline of stream flow and suspended solid in Golok River. Based on Statistical Process Control (SPC), water level of all parameters exceeded the Upper Control Limit (UCL), considered as high risk and vulnerable for flood and it is mostly due to man-made activities. It was not deniable that monsoon season played role in contributing flood occurrence as parameters of rainfall and water level have moderately positive factor loading.

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Spatial assessment on ambient air quality status: a case study in Klang, Selangor

Cited by 5 publications

References 8 publications

Identification Source of Variation on Regional Impact of Air Quality Pattern using Chemometric Techniques in Kuching, Sarawak

Identification Source of Variation on Regional Impact of Air Quality Pattern using Chemometric Techniques in Kuching, Sarawak

A study on air pollution concentration at Desa parkcity construction site

Flood Risk Pattern Recognition Using Chemometric Techniques Approach in Golok River, Kelantan

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