Panwadee Suwattiga

• Professor (Assistant) at King Mongkut's University of Technology North Bangkok

There were errors in the original article [...]

Nanoparticles (NPs), nanoaerosols (NAs), ultrafine particles (UFPs), and PM0.1 (diameters ≤ 0.1 µm or 100 nm) are used interchangeably in the field of atmospheric studies. This review article summarizes recent research on PM0.1 in Thailand. The review involved peer-reviewed papers that appeared in the Scopus and the Web of Science databases and inc...

Ambient PM2.5 pollution can affect human health and the environment in global megacities. Secondary PM2.5 is produced by physical and chemical reactions of primary air pollutants. Sources of secondary PM2.5 in Bangkok have been considered in most on-target investigations for the control and management of air quality. This research aims to identify...

This study characterizes impacts on PM2.5 of transboundary haze from peatland fires in Indonesia and local emission sources during 2019–2020 to a large and densely populated city, Hat Yai in southern Thailand. Organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC), water soluble ions (WSI: Cl⁻, NO3⁻, SO4²⁻ and NH4⁺), elemen...

Seasonal variations in atmospheric ultrafine particulate matter (PM0.1) were monitored in Bangkok, Thailand, from 2016 to 2017. PM0.1-bound organic carbon (OC) and elemental carbon (EC) were collected by a cascade air sampler that can collect PM0.1 and were analyzed by a Thermal-Optical carbon analyzer following the IMPROVE-TOR protocol. The annual...

Visibility and aerosol optical depth (AOD) characterization, and their relationship with PM10 and local and synoptic meteorology, were studied for January–March in 2014 and 2015 over Bangkok. Visibility degradation intensifies in the dry season as compared to the wet season due to increase in PM10 and unfavorable meteorological conditions. The aver...

The objective of this study was to characterize ambient nanoparticles (PM0.1)-bound metals in Bangkok, Thailand and assess the health risks of these materials to human. A year- long sampling campaign was conducted between November 2014 and October 2015. The PM0.1 mass concentration ranged from 10 to 27 µg/m3, and the average PM0.1 mass concentratio...

Transboundary and domestic aerosol transport during 2018–2019 affecting Bangkok air quality has been investigated. Physicochemical characteristics of size-segregated ambient particles down to nano-particles collected during 2017 non-haze and 2018–2019 haze periods were analyzed. The average PM2.5 concentrations at KU and KMUTNB sites in Bangkok, Th...

ในการศึกษาครั้งนี้ คณะผู้วิจัยได้ศึกษาฝุ่นละอองคัดขนาดเล็กลงถึงระดับอนุภาคนาโน (PM0.1) ในพื้นที่ตัวแทนสามภูมิภาค ได้แก่ เชียงใหม่ (ภาคเหนือ) กรุงเทพมหานคร (ภาคกลาง) และหาดใหญ่ (ภาคใต้) ของประเทศไทย คณะผู้วิจัยได้เก็บตัวอย่างอากาศในสามภูมิภาคเป็นเวลาต่อเนื่อง 1 ปี โดยใช้เครื่องเก็บอนุภาคนาโน องค์ประกอบคาร์บอนละอองลอยที่ศึกษาประกอบด้วย คาร์บอนธาตุ (E...

Phytoremediation is a promising technology to remediate heavy metal contaminated soil. The main objective of this study was to investigate the potential of using Vetiveria zizanioides, Bambusa bambos and Pennisetum purpureum to remove arsenic (As) and manganese (Mn) from the metal (loid) tailings pond of a gold mine. The aerial or aboveground parts...

Ambient aerosol nano-particles have been getting an increasing attention from their health risk point of view.  Not enough information on the status and characteristics of ambient aerosol nano-particles as well as their emission sources yet. Status and characteristics of ambient aerosol nano-particles have not been compared between different locat...

This study deals with aerosol optical depth (AOD) measured in the daytime (900-1630 local time) during Jan.-Mar. 2014 at a general urban site in North Bangkok using a handheld sunphotometer. The examination of the AOD data measured includes diurnal variation, weekday/weekend comparison, and daily series of average AOD, with emphasis on 500 nm. It w...

Commonly referred to as soot, black carbon (BC) is a primary aerosol emitted from incomplete combustion of organic materials such as fossil fuels, biofuels and biomass. BC aerosolis a dominant anthropogenic solar radiation absorber, absorbing approximately 1 million times more radiation per unit of mass than CO2. Recent research has found that BC i...

PM10 (Particulate Matter smaller than 10 microns) level in Samutprakan province, an industrial area south of Bangkok, was found to be the highest in Thailand in 2003 and 2004. The maximum 24-hour PM10 concentration was found to be as high as 331 microgram per cubic meters or about three times the national ambient air quality standards. In controlli...

Volatile organic compounds (VOCs) are emitted from various sources, both anthropogenic and biogenic. They are important precursors in photochemical reactions, and the formation of secondary aerosols. Therefore in controlling ozone concentration, sources of precursors need to be defined. Although ozone precursors are both NO x and VOCs, the study fr...

Representative speciated C 2 to C 10 hydrocarbon profiles for major sources in Bangkok have been directly measured to provide essential data for the understanding of ozone pollution in Bangkok. Sources sampled included: petrol vehicle exhaust, diesel vehicle exhaust, petrol fuel evaporatives, diesel fuel evaporatives, roadway air, commercial printi...