A5087041770- Air Quality and Health Impacts
- Atmospheric chemistry and aerosols
- Air Quality Monitoring and Forecasting
- Toxic Organic Pollutants Impact
- COVID-19 impact on air quality
- Vehicle emissions and performance
- Atmospheric Ozone and Climate
- Environmental Chemistry and Analysis
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Water Quality and Pollution Assessment
- Climate Change and Health Impacts
- Heavy metals in environment
- Indoor Air Quality and Microbial Exposure
- Atmospheric aerosols and clouds
- Microplastics and Plastic Pollution
- Radioactivity and Radon Measurements
- Oil Spill Detection and Mitigation
- Marine and coastal ecosystems
- Water Quality Monitoring and Analysis
- Energy and Environment Impacts
- Carcinogens and Genotoxicity Assessment
- Microbial bioremediation and biosurfactants
- Climate variability and models
- Impact of Light on Environment and Health
National University of Malaysia
2016-2025
Airlangga University
2020-2023
Ministry of Natural Resources and Environment
2021
University Kebangsaan Malaysia Medical Centre
2021
Bahria University
2020
University of Malaya
2019
Institute for Medical Research
2018
Universiti Malaysia Terengganu
2018
Nilai University
2015
University of East Anglia
2004-2005
Models of atmospheric composition rely on fire emissions inventories to reconstruct and project impacts biomass burning air quality, public health, climate, ecosystem dynamics, land-atmosphere exchanges. Many such global use satellite measurements active fires and/or burned area from the Moderate Resolution Imaging Spectroradiometer (MODIS). However, differences across in interpretation imagery, factors assumed for different components smoke, adjustments made small obscured can result large...
Abstract. The health implications of PM2.5 in the tropical region Southeast Asia (SEA) are significant as can pose serious concerns. concentration and sources here strongly influenced by changes monsoon regime from south-west quadrant to north-east region. In this work, samples were collected at a semi-urban area using high-volume air sampler different seasons on 24 h basis. Analysis trace elements water-soluble ions was performed inductively coupled plasma mass spectroscopy (ICP-MS) ion...
Abstract The rapid spread of the SARS-CoV-2 in COVID-19 pandemic had raised questions on route transmission this disease. Initial understanding was that originated from respiratory droplets an infected host to a susceptible host. However, indirect contact viable virus by fomites and through aerosols has also been suggested. Herein, we report involvement fine indoor air particulates with diameter ≤ 2.5 µm (PM ) as virus’s transport agent. PM collected over four weeks during 48-h measurement...
Tropospheric ozone threatens human health and crop yields, exacerbates global warming, fundamentally changes atmospheric chemistry. Evidence has pointed toward widespread increases in the troposphere, particularly surface is chemically complex difficult to abate. Despite past successes some regions, a solution new challenges of pollution warming climate remains unexplored. In this perspective, by compiling measurements at ∼4,300 sites worldwide between 2014 2019, we show emerging challenge...
Over the last decades, development of Klang Valley (Malaysia), as an urban commercial and industrial area, has elevated risk atmospheric pollutions. There are several significant sources air pollutants which vary depending on background location they originate from. The aim this study is to determine trend status quality their correlation with meteorological factors at different monitoring stations in Valley. data five major (PM(10), CO, SO(2), O(3), NO(2)) were recorded Alam Sekitar Sdn Bhd...
Abstract. This study investigates the fine particulate matter (PM2.5) variability in Klang Valley urban-industrial environment. In total, 94 daily PM2.5 samples were collected during a 1-year campaign from August 2011 to July 2012. is first paper on mass, chemical composition and sources tropical environment of Southeast Asia, covering all four seasons (distinguished by wind flow patterns) including haze events. The analysed for various inorganic components black carbon (BC). compositions...
The world is currently going through the COVID-19 pandemic which has caused hundreds of thousands deaths in just a few months. Considering need for lockdown measures, most countries, including Malaysia, have implemented 'Movement Control Orders' (MCOs) as prevention step to reduce deadly spread this disease. Local and worldwide media reported immediate improvement air quality due event. Nevertheless, data on effects MCOs at local scales are still sparse. Here, we investigate changes during...
Air pollution is the culprit to yearly millions of deaths worldwide, deteriorating human health. What not yet clear impact environmental factors on susceptibility getting infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The study aimed determine associations between air quality, meteorological factors, and COVID-19 cases in Kuala Lumpur, Malaysia. pollutants data 2018–2020 were obtained from Department Environment Malaysia, while daily new 2020 Ministry Health Data...
Abstract. Indonesia contains large areas of peatland that have been drained and cleared natural vegetation, making them susceptible to burning. Peat fires emit considerable amounts carbon dioxide, particulate matter (PM) other trace gases, contributing climate change causing regional air pollution. However, emissions from peat are uncertain, due uncertainties in emission factors fuel consumption. We used the Weather Research Forecasting model with chemistry measurements PM concentrations...
Urban air quality has been deteriorating over time. Pollutant distribution levels in the urban environment may be associated with anthropogenic sources and meteorological conditions. The aim of this study is to determine variation concentrations major pollutants: carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), sulphur (SO2) particulate matter (PM10), corresponding seasonal a Malaysian environment. Eleven years data from four selected stations, namely Klang (S1), Petaling Jaya (S2),...
To understand the characteristics of particulate matter (PM) in Southeast Asia region, spatial-temporal concentrations PM10, PM2.5 and PM1 Malaysia (Putrajaya, Bukit Fraser Kota Samarahan) Thailand (Chiang Mai) were determined using AS-LUNG V.2 Outdoor sensor. The period measurement was over a year from 2019 to 2020. highest all sizes PM Putrajaya, Samarahan observed September while Chiang Mai between March early April 2020 with 24 h average during haze days ranges 83.7-216 µg m-3, 78.3-209...