Distribution and Temporal Behaviour of O3 and NO2 Near Selected Schools in Seberang Perai, Pulau Pinang and Parit Buntar, Perak, Malaysia

Zainordin, Nazatul Syadia; Ramli, Nor Azam; Elbayoumi, Maher

doi:10.17576/jsm-2017-4602-03

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…All meteorological parameters namely RH, T and WS contributed significant negative correlation to PM10 concentration. The magnitude value near to 1 denoted almost similar in temporal behaviour between variables [31]. For that reason, based on the magnitude values, the strong relations were observed between PM10 and T, O3 and CO at Pasir Gudang, Perai and Nilai stations respectively.…”

Section: Correlation Analysismentioning

confidence: 66%

The behavior of Particulate Matter (PM10) Concentrations at Industrial Sites in Malaysia

Raffee¹,

Rahmat²,

Hamid³

et al. 2019

IJIE

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PM10 reportedly contributes about 0.8 million premature cases and 2.1 million deaths worldwide [6-7]. In Malaysia, the PM10 concentration is mostly influenced by industrial, power plants and transportation activities. While during haze events, the major regional source of PM10 is biomass burning during dry season from June to September each year [8-9]. Apart from emission sources, complex interactions in various processes such as emission itself, transport and transformation are the common factors that influence meteorological parameters in PM10

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Section: Correlation Analysismentioning

confidence: 66%

The behavior of Particulate Matter (PM10) Concentrations at Industrial Sites in Malaysia

Raffee¹,

Rahmat²,

Hamid³

et al. 2019

IJIE

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“…Relative humidity corresponds to the wet condition of the area. Wet conditions or high relative humidity will reduce O3 formation because insufficient sunlight drives O3 formation [10]. The correlation between trace gases shows significant positive correlations between primary gases such as CO, NO2, and SO2.…”

Section: Correlation Between Air Pollutants and Meteorologicalmentioning

confidence: 99%

Relationship between common air pollutants with risk of cardio-respiratory hospitalization in urbanized areas in Kelantan

Mat Sahar,

Ya’acob,

Hie Ling

et al. 2023

BIO Web Conf.

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A high concentration of air pollution can lead to health problems which are the cardiovascular and respiratory systems (WHO, 2014). A study has been conducted to know the relationship between five criteria air pollutants with hospitalization related to cardiovascular and respiratory diseases in two cities in Kelantan. The secondary data from 2000 until 2015 analyzed in the study were obtained from DOE and MOH for the air pollutants concentration and hospitalization, respectively. This study shows that the mean concentration of all pollutants in the study area is below the RMAAQS. Significant Relative Risk (RR) values were found for cardiovascular hospitalization associated with SO2 (RR = 1.537, 95% CI = 2.970, 7.956), NO2 (RR = 1.212, 95% CI = 1.156, 1.272), and O3 (RR = 4.873, 95% CI = 2.768, 8.578). In contrast, significant RR for respiratory hospitalization was found to be associated with SO2 (RR = 1.952, 95% CI = 1.013, 3.762), NO2 (RR = 2.021, 95% CI = 6.170, 6.620), O3 (RR = 1.128, 95% CI = 4.427, 2.874), and PM10 (RR = 1.008, 95% CI = 1.007, 1.008). The highest value of Relative Risk is O3 and NO2 for hospitalization related to cardiovascular and respiratory diseases, respectively. In conclusion, the value of RR associated with air pollutants proves that air pollutants are associated with cardiovascular and respiratory-related hospitalization risk.

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“…On-site monitoring is the most direct and effective means to grasp the real surrounding rock pressure and supporting effect. Through the actual monitoring of surrounding rock and surface deformation, it can help to analyze whether the support structures play the role of supporting and judge the stability of surrounding rock and the effect of deformation control measures (Lerner et al 2015;Li et al 2011;Moffat et al 2015;Rabensteiner & Chmelina 2016;Yu et al 2015;Zainordin et al 2017).…”

Section: Engineering Validation Of Deformation Controlmentioning

confidence: 99%

Case Study on Deformation Control of Upper-Soft and Lower-Hard Large Span Tunnel Station using Combined Control Technology and Monitoring Demonstration

Shang¹,

Du²,

Han³

et al. 2017

JSM

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A large number of shallow buried tunnels are built in the city nowadays and the special strata such as large upper-soft and lower-hard ground often encountered. Deformation control of strata is the focus issue related to the construction safety. Based on Dalian metro Hing Street station with the classical geological condition of upper-soft and lower-hard ground, this paper fully used a combined control method including six different support measures to control the deformation of surrounding rock. 3D finite element model was setup to analyze the construction effect of combined control measures and the monitoring in-site was carried out to verify the deformation control effect of combined control method. It shows that the maximum surface subsidence value is gradually reduced with the support measures gradually increasing. In the case of various supports the maximum sedimentation value is 2.67 cm, which is 42. 1% lower than that of not using control method and the control effect is obvious. In addition, it can be seen that the two-layer initial support and additional large arch foot have the best effect on controlling the ground surface settlement with reduction of 11.7% and 20.2%, respectively. The research results can provide practical experience for the construction of such tunnels, and guide the design and construction of the tunnel in the future.

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Distribution and Temporal Behaviour of O3 and NO2 Near Selected Schools in Seberang Perai, Pulau Pinang and Parit Buntar, Perak, Malaysia

Abstract: Air quality has deteriorated in urban areas as a result of increased anthropogenic activities. Quantitative information on the influence of meteorological conditions on several pollutants in a tropical

Cited by 7 publications

References 29 publications

The behavior of Particulate Matter (PM10) Concentrations at Industrial Sites in Malaysia

The behavior of Particulate Matter (PM10) Concentrations at Industrial Sites in Malaysia

Relationship between common air pollutants with risk of cardio-respiratory hospitalization in urbanized areas in Kelantan

Case Study on Deformation Control of Upper-Soft and Lower-Hard Large Span Tunnel Station using Combined Control Technology and Monitoring Demonstration

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