scholarly journals Spatial Analysis of the Air Pollutant Index in the Southern Region of Peninsular Malaysia Using Environmetric Techniques

2013 ◽  
pp. 307-312 ◽  
Author(s):  
Azman Azid ◽  
Hafizan Juahir ◽  
Ahmad Zaharin Aris ◽  
Mohd Ekhwan Toriman ◽  
Mohd Talib Latif ◽  
...  
2012 ◽  
Vol 3 ◽  
pp. 17-23 ◽  
Author(s):  
Rosmina A. Bustami ◽  
Nor Azalina Rosli ◽  
Jethro Henry Adam ◽  
Kuan Pei Li

 In the process of a design rainfall, information on rainfall duration, average rainfall intensity and temporal rainfall pattern is important. This study focuses on developing a temporal rainfall pattern for the Southern region of Sarawak since temporal pattern for Sarawak is yet to be available in the Malaysian Urban Storm Water Management Manual (MSMA), which publishes temporal pattern for design storms only for Peninsular Malaysia. The recommended technique by the Australian Rainfall and Runoff (AR&R) known as the ‘Average Variability Method’ and method in Hydrological Procedure No.1-1982 are used to derive design rainfall temporal pattern for the study. Rainfall data of 5 minutes interval from year 1998 to year 2006 for 7 selected rainfall stations in the selected region is obtained from Department of Irrigation and Drainage (DID). The temporal rainfall patterns developed are for 10 minutes,15 minutes, 30 minutes, 60 minutes, 120 minutes, 180 minutes and 360 minutes duration. The results show that Southern region of Sarawak has an exclusive rainfall pattern, which is different from the pattern developed for Peninsular Malaysia.


2013 ◽  
Vol 63 (2) ◽  
Author(s):  
Suhaila Jamaludin ◽  
Hanisah Suhaimi

This study presents the spatial analysis of the rainfall data over Peninsular Malaysia. 70 rainfall stations were utilized in this study. Due to the limited number of rainfall stations, the Ordinary Kriging method which is one of the techniques in Spatial Interpolation was used to estimate the values of the rainfall data and to map their spatial distribution. This spatial analysis was analysed according to the two indices that describe the wet events and another two indices that characterize dry conditions. Large areas at the east experienced high rainfall intensity compared to the areas in the west, northwest and southwest. The small value that has been obtained in Aridity Intensity Index (AII) reflects that the high amount of rainfall in the eastern areas is not contributed by low-intensity events (less than 25th percentile). In terms of number of consecutive dry days, Northwestern areas in Peninsular Malaysia recorded the highest value. This finding explains the occurrence of a large number of floods and soil erosions in the eastern areas.


2020 ◽  
Vol 472 ◽  
pp. 118213
Author(s):  
Viviana Otero ◽  
Richard Lucas ◽  
Ruben Van De Kerchove ◽  
Behara Satyanarayana ◽  
Husain Mohd-Lokman ◽  
...  

2018 ◽  
Vol 2 (1) ◽  
pp. 59-62 ◽  
Author(s):  
William Wee-Lim Hew ◽  
Siok-Hwa Lau ◽  
Gerald Guan-Gan Goh

The Malaysian residential property market is currently in a state of stagnation and overhang has become a serious concern. Discussions were held with property developers in the southern region of Peninsular Malaysia to elaborate the problems faced in operating in the industry as well as their causes. Several developers who were found to perform well under the slumping market. From the discussions, they were found to have taken innovative approaches to housing, offering houses based on eco-concepts, space optimisation, security through layout management, as well as structural features that appeal to the lifestyle needs of current homebuyers.


2015 ◽  
Vol 77 (1) ◽  
Author(s):  
Hamza Ahmad Isiyaka ◽  
Hafizan Juahir ◽  
Mohd Ekhwan Toriman ◽  
Azman Azid ◽  
Barzani Mohd Gasim ◽  
...  

This study aims to investigate the spatial variation in the source of air pollution, identify the percentage contribution of each pollutant and apportion the mass contribution of each source category using chemometric techniques. Hierarchical agglomerative cluster analysis (HACA) successfully grouped the five air monitoring sites into three groups (cluster 1, 2 and 3). Principal component analysis (PCA) was used to spot out the sources of air pollution which are attributed to anthropogenic activities. Multiple linear regression (MLR) was used to develop an equation model that explains the contribution of pollutants in each cluster. However, it was observed that particulate matter (PM10) and Ozone (O3) are the most significant pollutants influencing the value of air pollutant index (API). Meanwhile, the source apportionment indicates that cluster 1 is influenced by gas and non-gas pollutants to a degree of 84%, weather condition 15% and 1% by gas and secondary pollutants. Cluster 2 is affected by gas and secondary pollutants to a tune of 87% and 13% by weather condition while cluster 3 is apportioned with 98% secondary gas and non-gas pollutants and 2% weather condition. This study reveals the usefulness of chemometric technique in modeling and reducing the cost and time of monitoring redundant stations and parameters.


Author(s):  
Mohamad Fadli K ◽  
Rosliza AM ◽  
Muhamad Hanafiah J ◽  
Sharifah Norkhadijah SI

Introduction: A huge number of Orang Asli population live in isolated area within peninsular Malaysia. Their lack of proper road and remoteness made their access to healthcare services difficult. Batang Padang has the 22800 Orang Asli reside in the district. Primary healthcare services have been provided to this population through static clinic and mobile clinic.Objective: This study was done to determine distance of primary healthcare from Orang Asli village and their correlation with primary healthcare utilization.Methods: A cross sectional study using Geographical Information System was done using spatial data from various sources for mapping and spatial analysis. Network analysis using ArcGIS software was used to determine the distance while Spearman correlation was used to determine association between distance and primary healthcare utilization.Result: Most of Orang Asli villages located not far from main road. Mean distance from Orang Asli village to nearest primary healthcare clinic is 5.87 kilometers. Mean duration taken for Orang Asli to come to the primary healthcare clinic is either 4.71 minutes by land transportation or 70.42 minutes by walking. Orang Asli villages located in the center of the district around Bandar Tapah have short distance to primary healthcare and the distance increase as the villages located away from the center. There is significant correlation between network distance with Orang Asli attendance to clinic (r 0.203) and MMR vaccination (r 0.230). There is also significant correlation between walking duration with Orang Asli attendance to primary healthcare (r 0.178) and MMR vaccination (r 0.227).Conclusion: As the distance and duration increase for Orang Asli to get to primary healthcare, there is increase need of primary healthcare services. Planning of primary healthcare for Orang Asli should consider the distance from these villages to primary healthcare services.International Journal of Human and Health Sciences Supplementary Issue: 2019 Page: 46


Sign in / Sign up

Export Citation Format

Share Document