Assessment of impact of urbanisation on background radiation exposure and human health risk estimation in Kuala Lumpur, Malaysia

Sanusi, M.S.M.; Ramli, Ahmad Termizi; Hassan, Wan Muhamad Saridan Wan; Lee, Muhammad Hisyam; Izham, A.; Said, M.N.; Wagiran, Husin; Heryanshah, A.

doi:10.1016/j.envint.2017.01.009

Cited by 24 publications

(14 citation statements)

References 31 publications

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“…eq Ra mean value was 24 Bq/kg that is lower than set limit of 370 Bq/kg [24]. In their study, U-238 activities were 7.3 to 69.4 Bq/kg whereas this study showed the ranges were 0 to 17 Bq/kg.…”

Section: Radiation Hazard In Adhesive Materialscontrasting

confidence: 64%

The Experimental Gamma Radiation Dose Rate for Radiation Hazard into Adhesive Building Materials in Saudi Arabia

Alshammari¹,

Algammidi²

2017

OJRad

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The primary aim of this work was clearly to apply the norms of radiation protection to building residents against natural radioactivity. This was done through measurement of natural radioactivity in adhesive building materials using HPGe gamma ray spectrometer. The radium equivalent activity (Ra eq ), indoor gamma absorbed dose rate (D R ), and annual effective dose (H R ) associated with natural radioactivity were computed to assess the radiation hazards in adhesive building materials. The obtained specific activities of these natural radionuclides and the calculated radiation hazard indexes were compared with the international recommended values. The findings in this work of natural radioactivity levels were below the acceptable limits. Therefore, it was found the adhesive building materials were safe to be used as construction materials. Also, as a minor work, previous unpublished data of heavy metals in the same study adhesive materials were investigated by ICP-MS to figure out the correlation between heavy metal presence and natural radioactivity. The findings showed insignificant correlations between heavy metals and radioactivity.

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Section: Radiation Hazard In Adhesive Materialscontrasting

confidence: 64%

The Experimental Gamma Radiation Dose Rate for Radiation Hazard into Adhesive Building Materials in Saudi Arabia

Alshammari¹,

Algammidi²

2017

OJRad

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“…In this study, however, most landslides occurred at slope gradients of 0° to 15° (Figure 4(d)) as former mining sites mostly cover this region. This situation explains the rationale for landslide occurrences on flat surfaces in Kuala Lumpur over the past decades (Sanusi et al, 2017). Furthermore, the Kuala Lumpur area is also covered with 92% of slopes ranging between 0° to 15° while the steep slopes only represent 8% area showing landslides that occurred in this area are shallows.…”

Section: Resultsmentioning

confidence: 90%

Influencing Physical Characteristics of Landslides in Kuala Lumpur, Malaysia

Zulkafli¹,

Majid²,

Zakaria³

et al. 2023

JST

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Landslide is one of the natural disasters that commonly occurs in terrestrial environments with slopes throughout the world. Located among countries with tropical climates, the hot and humid conditions expose Kuala Lumpur, Malaysia, to the risk of landslides. This paper aims to delineate the influencing physical characteristics of landslide occurrences in Kuala Lumpur. In this study, a 100 landslides historical data set and eight landslide factors were obtained from proper field validation and maps provided by those concerned in the government, such as distance to roads, distance to streams, elevation, slope angle, curvature, slope aspect, land use, and lithology. These factors were processed using GIS as geospatial analysis provides a useful tool for planning, disaster management, and hazard mitigation. By using ArcMap 10.8.2, a GIS software, different spatial analyses in which maps for each physical factor were layered with landslide events distribution. The weights for each factor were determined using the ANN approach resulting in the slope angle having the highest relative importance with a 100.0% value. In comparison, 8.3% represents the slope aspect as the most insignificant factor out of the eight selected characteristics for this study area. Therefore, a proper perspective and a thorough understanding of the certain slope condition have to be established for future mitigation action to support the agenda of SDG 15.

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“…15 Additional sources like urbanisation, industrial waste, weapon testing and radioactive waste also contribute to the background radiation level. 16,17 3.1. Annual outdoor gamma dose rate variation in selected sites across different districts of Kerala Estimation of natural terrestrial gamma dose rate is important as it is the prime external source of irradiation the human body is exposed to.…”

Section: Resultsmentioning

confidence: 99%

“…15 Additional sources like urbanisation, industrial waste, weapon testing and radioactive waste also contribute to the background radiation level. 16,17…”

Section: Resultsmentioning

confidence: 99%