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Pengumpulan data penyelidikan alam sekitar dan perubahan iklim serta dasar dan polisi berkaitan
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Recent Submissions
Assessment of Heavy Metal Contamination in Paddy Field Soils: A Case Study in Ranau Valley, Sabah, Malaysia
(E3S Web of Ccnference, 2025-01-10) Siti Norliyana; Nadrah Ahmad Damanhuri
The weathering of ultrabasic rocks surrounding the Ranau Valley
in Sabah, Malaysia, contributes to the formation of soils with elevated
concentrations of heavy metals. These metals, including Manganese (Mn),
Nickel (Ni), Chromium (Cr), and others, have the potential to disperse into
nearby paddy fields, leading to significant soil contamination. This study
aims to: (a) determine the concentrations of heavy metals in the paddy field
soils of Ranau Valley and (b) map their spatial distribution using Geographic
Information System (GIS) technology. The results revealed that Mn was the
most abundant metal, with concentrations reaching 13,855.67 mg/kg,
followed by Iron (Fe), Ni, Zinc (Zn), and Cr. Several metals, including Mn,
Ni, and Cr, exceeded established soil toxicity thresholds, particularly in
areas influenced by ultrabasic rocks and agricultural practices. Elevated
levels of Copper (Cu), Lead (Pb), Zn, and Cadmium (Cd) were also observed
in regions affected by the use of chemical fertilizers. These findings
highlight the potential risks to agricultural productivity and food safety in
the region, as metals such as cadmium and lead can accumulate in crops,
posing health risks to local populations. To address these concerns,
remediation strategies such as organic amendments and pH adjustments are
recommended. Regular monitoring and sustainable soil management
practices will be essential to safeguard soil health, ensure food security, and
reduce environmental risks in the Ranau Valley.
Covid-19 Effect on Community Mobility and Stock Market of Malaysia
(Asian Journal of Accounting and Governance, 2022-08-14) Wee Hin Boo; Norhafizah Abu Hasan; Wong Wai Yan
Physical distancing is believed to contain the spread of COVID-19 virus. With data provided by COVID-19 Community Mobility Reports from Google, this study examines the mobility patterns at different stages of Movement Control Order (MCO) and investigates whether lower mobility reduces the number of new cases, death cases, and recovery rate. This research also covers the time spent in places such as i) retail and recreation, ii) grocery and pharmacy, iii) parks, iv) transit stations, v) the workplace, and vi) residential areas. As each of these types of places has distinct epidemiological characteristics, they may spread transmission differently. This study also correlates the stock market with mobility patterns of Malaysians in order to evaluate the effectiveness of lockdowns on COVID-19 incidents and its impact on the stock market, in this case; Kuala Lumpur Composite Index (KLCI). Findings of this study highlight the effects of pandemic COVID-19 on stock market daily performance by utilizing prospect and uncertainty theory in predicting the short-term impacts of the epidemic
data banjir kilat KL 2008-2015
(2025-01-14) Wan Hanna Melini Wan Mohtar
This is a data extracted from Laporan Banjir JPS, focusing on flash flood occurrence within the Kuala Lumpur region.
Produksi fitoplankton di Rancangan Muda, Kedah
(Penerbit UKM) Chua Thia Eng; Lai Hoi-Chaw