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Malaria Epidemics Under Climate Change Scenarios In Thailand, Chayut Pinichka, Kampanad Bhaktikul, Saranya Sucharitakul, Kanitta Bundhamcharoen
Malaria Epidemics Under Climate Change Scenarios In Thailand, Chayut Pinichka, Kampanad Bhaktikul, Saranya Sucharitakul, Kanitta Bundhamcharoen
Applied Environmental Research
The objective of this study was to estimate avoidable burden on disease of malaria in Thailand under climate conditions in the future. The study was based on climate projection under 2 different situations which included the regionally economic development (A2) and the local environmental sustainability (B2). 1991-2011 climate data collection was used to create nonlinear mixed regression model. The variables in monthly time step, which included maximum temperature, minimum temperature, precipitation, humidity, average wind speed. The results were found the best fitting model, model 2, which adjusted R-Square = 0.818 and RMSE = 763.27. The average disease incidence in the …
The Water-Managed Patterns Of Local Irrigation System For Agriculture In Mae Khan Watershed, Chiang Mai Province, Chaowalit Simsuay, Apiwat Ratanawaraha
The Water-Managed Patterns Of Local Irrigation System For Agriculture In Mae Khan Watershed, Chiang Mai Province, Chaowalit Simsuay, Apiwat Ratanawaraha
Applied Environmental Research
This research is a conceptual framework study of the water- managed patterns of local (Muang Fai) irrigation systems for agriculture in Mae Khan watershed area, Chiang Mai Province by using the model of Elinor Ostrom and Lertwicha and Wichainkhiew. The objectives were; to study the pattern of water resource management based on the topography, to study the factors affected the existing of water management patterns, and to study the development and the changes of water management patterns in Mae Khan watershed basin. The research methodologies were the field trip survey, questionnaires, and depth interview with the groups of leaders, water …
Ambient And Personal Exposure Levels Of Btex Among School Children Residing Near The Oil Refineries In Chonburi Province, Nantaporn Phatrabuddha, Nipa Maharatchpong, Sastri Saowakhontha
Ambient And Personal Exposure Levels Of Btex Among School Children Residing Near The Oil Refineries In Chonburi Province, Nantaporn Phatrabuddha, Nipa Maharatchpong, Sastri Saowakhontha
Applied Environmental Research
Benzene (B), toluene (T), ethylbenzene (E) and xylene (X) known as BTEX are commonly observed in the refinery industrial area and acknowledged that pose a threat to human health, and possibly even more so to children. Personal exposure of 86 schoolchildren and the ambient air levels were measured simultaneously. The potential risks of BTEX exposure were also investigated. The results revealed that the highest BTEX personal exposures were observed in school children residing close to the oil refinery. The average ambient level of benzene and toluene were comparable to these level of personal exposure which indicated the large impact of …
Physicochemical And Microbial Analysis Of Tap Water, Well Water And Sachet Water From Parts Of Abeokuta South Local Government Area In Nigeria, Anslem Diayi, Ojo L.O., Gbadebo A. M., Idabor V. N.
Physicochemical And Microbial Analysis Of Tap Water, Well Water And Sachet Water From Parts Of Abeokuta South Local Government Area In Nigeria, Anslem Diayi, Ojo L.O., Gbadebo A. M., Idabor V. N.
Applied Environmental Research
Water samples were collected from taps, wells and in sachets (table water) from various locations in Abeokuta South Local Government Area. The samples were subjected to physicochemical analyses in order to determine the suitability of the waters for drinking purposes. pH, temperature and conductivity were determined using Hana Combo (HI 98129). Evaporation method was used for total solids determination while titration was employed for alkalinity. Trace metals were subjected to Atomic Absorption Spectrometry (AAS) while Multiple Tubed Fermentation Technique was used for the microbial examination of the water samples obtained. From the results obtained, Fe (mg L-1) values obtained ranged …
Metal Concentrations In Sediments Of The Ogun River, Nigeria, Anslem Diayi, Gbadebo A.M., Adekunle I. M., Awomeso J. A.
Metal Concentrations In Sediments Of The Ogun River, Nigeria, Anslem Diayi, Gbadebo A.M., Adekunle I. M., Awomeso J. A.
Applied Environmental Research
Sediment samples were collected from various locations along the Ogun River basin after which they were subjected to physicochemical analysis in order to determine the concentration of metals in the sediments as well as other sediment characteristics like pH, texture, cation exchange capacity etc. The samples were collected using a Van Veen Sediment grab after which they were stored in labeled polythene bags and transported in ice packed coolers to the laboratory. They were air dried, sieved and hand pulverized. Sediment trace metal analysis was determined using the Inductively Coupled Plasma Optical Emission Spectrometry. Data obtained were subjected to Analysis …
Carbon Footprint For Organization; Huachiew Chalermprakiet University, Isaree Rodtusana
Carbon Footprint For Organization; Huachiew Chalermprakiet University, Isaree Rodtusana
Applied Environmental Research
This study was conducted to assess carbon footprint of the Huachiew Chalermprakiet University in academic year 2010. The study was three scopes contributed in emitting greenhouse gases (GHGs) in term of carbon dioxide equivalent (CO2e). The first scope was direct emissions which were electricity generation from auxiliary equipment, fuel combustion of the vehicles, fugitive emission, chemical fertilizer utilization, and wastewater treatment. The second scope was indirect GHGs emission from electricity consumption and the third scope was other indirect GHGs emissions. The study revealed that the Huachiew Chalermprakiet University had emitted CO2e by 4,640 ton a-1. The highest emission scope was …
Aerosol And Cloud Condensation Nuclei Distribution During Summer Season Over Northern Region Of Thailand, Pakdee Chantraket, Nuenghatai Tantiplubthong, Thitikorn Chanyatham
Aerosol And Cloud Condensation Nuclei Distribution During Summer Season Over Northern Region Of Thailand, Pakdee Chantraket, Nuenghatai Tantiplubthong, Thitikorn Chanyatham
Applied Environmental Research
Background aerosol and cloud condensation nuclei (CCN) measurements are crucial to comprehend the impacts of cloud processes and formations. During summer season from March to May 2012 using all 14 flights of research super king air aircraft, aerosol concentrations (CN) and CCN at super-saturation 0.50 % were carried out over seven provinces in the rural background aerosol of northern Thailand. Aerosol size spectra between 20 nm and 50 \mum were also measured with combining measurements from the differential mobility analyzer (DMA), passive cavity aerosol spectrometer (PCASP) and fast-forwarding scattering spectrometer probe (FSSP). CCN concentrations were measured with CCN Counter. In …
Livelihood Dynamic In Semi Arid Communities: Adapting To Climate Change Around Kainji Lake, Nigeria, Usman Raheem, Felix Olorunfemi, Olutoyin Fashae, Gbenga Awotayo
Livelihood Dynamic In Semi Arid Communities: Adapting To Climate Change Around Kainji Lake, Nigeria, Usman Raheem, Felix Olorunfemi, Olutoyin Fashae, Gbenga Awotayo
Applied Environmental Research
The consequences of climate change and extreme meteorological events, particularly for rural dwellers is the collapse of many natural resource based livelihood systems. Thus as an adaptation strategy, many households often need to change their major occupation or supplement it with some other jobs that may be less vulnerable to during extreme weather conditions. This study examines livelihood diversification consequent on climate change and/or extreme weather events in the semi-arid regions of Nigeria. This is with a view to determining the sustainability of adaptation strategies among rural dwellers. Using a mixed method approach, Focus Group Discussion sessions and structured questionnaire …
Effect Of Ecological Factors On Vegetation And Carbon Stock On Samaesan Island, Chonburi Province, Thailand, Nathsuda Pumijumnong, Paramate Payomrat
Effect Of Ecological Factors On Vegetation And Carbon Stock On Samaesan Island, Chonburi Province, Thailand, Nathsuda Pumijumnong, Paramate Payomrat
Applied Environmental Research
This study aims to classify this littoral evergreen forest and to analyze the environmental factors that determine its composition and structure and evaluate the potential of carbon stock of each vegetation community. Seventy-five plots were sampled, the plant cover was measured, and the importance value index was calculated. Thirty-seven soil samples were analyzed, and cluster analysis was employed to classify the vegetation communities. Floristic and environmental data were evaluated and ordered using the canonical correspondence analysis (CCA). THEOS was applied to classify the vegetation boundary. Allometric equations were used to calculate the aboveground biomass. The results revealed that the vegetation …
Urban Heat Island Phenomenon In Relation To Land Use/Land Cover In Bangkok Metropolitan Administration Area, Parinya Chayapong, Songkot Dasananda
Urban Heat Island Phenomenon In Relation To Land Use/Land Cover In Bangkok Metropolitan Administration Area, Parinya Chayapong, Songkot Dasananda
Applied Environmental Research
The urban heat island (UHI) phenomenon can be found in the megacities around the world where near-surface temperatures over the city core area were notably higher than those over the surrounding rural area. Intensity of the UHI phenomenon (\inline \DeltaT) was usually measured by the temperature differences between urban locations and some refereed rural sites. This situation was resulted mainly from the presence of dense builtup elements, e.g. commercial buildings or houses, as well as human activities that tended to release considerable heat into atmosphere. At present, the UHI monitoring can be done efficiently by using satellite-based thermal infrared (TIR) …
Heavy Metal Accumulation In The Skeleton Of Porites Lutea From Ngam Island, Trat Province, Thailand, Mueanfan Boonkanta, Nathsuda Pumijumnong
Heavy Metal Accumulation In The Skeleton Of Porites Lutea From Ngam Island, Trat Province, Thailand, Mueanfan Boonkanta, Nathsuda Pumijumnong
Applied Environmental Research
For investigating variation of heavy metal concentration in growth bands of coral skeletons, Poriteslutea samples were collected from Ngam Island, Trat province, Thailand. The skeleton samples were cleaned using oxidative and reductive treatments to effectively eliminate detritus and organic materials and were acid-digested. Five heavy metals, cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), and zinc (Zn), in the growth bands of Porites lutea were analyzed using Flame Atomic Absorption Spectrometry (FAAS) and Graphite Furnace Atomic Absorption Spectrometry (GFAAS). As a result, the range of heavy metals found in coral skeletons (µg g-1 as dry weight) was: Cd (0.01-0.19), Cr …
Metal Concentrations In The Water And Bedrock Of Ogun River, Nigeria, Anslem Diayi, Michael Gbadebo
Metal Concentrations In The Water And Bedrock Of Ogun River, Nigeria, Anslem Diayi, Michael Gbadebo
Applied Environmental Research
Parts of the Ogun River basin namely Mokoloki, Brewery, Akomoje, Akin Olugbade, Lafenwa, Oyan, Arakanga, and Kara were surveyed to determine the effects of bedrock metals on the water quality of the river. Physicochemical analyses were done on the bedrock and water samples obtained while bedrock trace metal analyses were determined using the Inductively Coupled Plasma Optical Emission Spectrometry. Water trace metal analyses were carried out by Atomic Absorption Spectrometry (AAS). Data obtained were subjected to the Duncan Multiple Range Test (DMRT). Results obtained showed that Cadmium (Cd) (0.425-1.990 ppm for bedrock samples and 0.005-0.011 mg L-1 for water samples) …
Indoor Air Pollution: Volatile Organic Compounds In Non-Industrial Microenvironments In Thailand, Maneerat Ongwandee
Indoor Air Pollution: Volatile Organic Compounds In Non-Industrial Microenvironments In Thailand, Maneerat Ongwandee
Applied Environmental Research
This paper was intended to review literature related to indoor air quality research conducted in Thailand during the past decade. The content was devoted to a certain indoor pollutant group which were volatile organic compounds (VOCs). VOCs were present indoors to a wide range of concentrations with a variety of chemical species. This paper discussed the VOC investigations designated to non-industrial microenvironments, which included workplaces, residences, and mass transit. Typically, levels of VOCs found in the nonindustrial microenvironments were significantly less than those found in industries. Although concentrations of VOCs in the non-industrial microenvironments may not be high enough to …
Factors Affecting Energy Consumption For Traveling Of Households In Bangkok Metropolitan Area, Pattana Sirichotpundit, Chamlong Poboon, Duchduen Bhanthumnavin, Wisakha Phoochinda
Factors Affecting Energy Consumption For Traveling Of Households In Bangkok Metropolitan Area, Pattana Sirichotpundit, Chamlong Poboon, Duchduen Bhanthumnavin, Wisakha Phoochinda
Applied Environmental Research
This study aimed to examine factors affecting energy consumption for traveling of households in Bangkok metropolitan area. Data were collected by surveying 1,150 households in 15 districts of Bangkok Metropolitan Administration. The hypotheses were tested by multi regression analysis. Results of the analysis revealed that there were two factors significantly having positive effects on the quantity of energy use for traveling which were physical and structure factors and social and cultural factors. Suggestions for reducing energy use for traveling including promoting working close to living place, improving public transportation service, restricting private vehicle use in the inner zone, and keeping …
Accumulation Of Heavy Metals In Mangrove Sediments Of Chumphon Province, Thailand, Nathsuda Pumijumnong, Bussarin Uppadit
Accumulation Of Heavy Metals In Mangrove Sediments Of Chumphon Province, Thailand, Nathsuda Pumijumnong, Bussarin Uppadit
Applied Environmental Research
The objective of this study was two-fold: to examine the heavy metal (Cd, Cu, Cr, Ni, Mn, Pb and Zn) levels that have accumulated in mangrove forest sediments in Chumphon Province, Thailand, and to determine the relationship between heavy metals and the physiochemical properties of sediment. The sediment was digested with HNO3 and HCl using a milestone microwave digestion system (model MLS-1200 MEGA), followed by the addition of 50 ml distilled water. The concentrations of Cu, Cr, Ni, Mn, and Zn in the filtered and digested samples were determined by air-acetylene flame atomic absorption spectrophotometry (FAAS, model Varian SpectrAA 220FS). …
Effects Of Solution Ph And Ionic Strength For Removal Of Combined Natural Organic Matter And Copper (Ii) Ion By Membrane Nanofiltration, Pakasit Hongthong, Supatpong Mattaraj, Ratana Jiraratananon
Effects Of Solution Ph And Ionic Strength For Removal Of Combined Natural Organic Matter And Copper (Ii) Ion By Membrane Nanofiltration, Pakasit Hongthong, Supatpong Mattaraj, Ratana Jiraratananon
Applied Environmental Research
Effects of solution pH and ionic strength for removal of combined natural organic matter (NOM) and copper (II) through a nanofiltration (NF) membrane were investigated. Experimental results revealed that the influence of NOM and copper (II) ion on NF performance was dependent on solution chemistry (i.e. solution pH and ionic strength). For copper (II) ion, increased solution pHs exhibited greater flux decline, while there was no significant difference in flux for solutions containing NOM. Solutions containing copper (II) ion alone showed less flux decline than those containing NOM and combined NOM with copper (II ) ions. The ion rejections (based …
Interposition Of Alien Structure In Aesthetic Value Of Ayuthaya Historical And Archaeological Ruin, Bundit Pradabsook, Kasem Chunkao, Surat Bualert
Interposition Of Alien Structure In Aesthetic Value Of Ayuthaya Historical And Archaeological Ruin, Bundit Pradabsook, Kasem Chunkao, Surat Bualert
Applied Environmental Research
Aesthetic value damage evaluation on archaeological ruins was a difficult issue to address due to the public perception that it was a subjective issue. Interposition of alien structures at archaeological sites was commonly seen and caused adverse visual impacts and affected the conservation of arts and cultural heritage of the Kingdom of Thailand. There were currently no means to determine the damage of archaeological sites by interposed alien structures, thus, it was difficult to identify criteria which was needed to protect the aesthetic beauty of historical, architectural, and archaeological sites. In order to establish a method of measuring aesthetic damage …
Assessment Of Surface Water Quality Parameters And Their Variations For Effective River Monitoring System: A Case Study Of U-Tapao River Basin, Saroj Gyawali, Kuaanan Techato, Chumpol Yuangyai, Sathaporn Monprapussorn
Assessment Of Surface Water Quality Parameters And Their Variations For Effective River Monitoring System: A Case Study Of U-Tapao River Basin, Saroj Gyawali, Kuaanan Techato, Chumpol Yuangyai, Sathaporn Monprapussorn
Applied Environmental Research
Water pollution has become an alarming threat to human society and natural ecosystems. Evaluation of water quality and its variations is essential for water quality management. This study aimed to analyze the spatial and temporal variations of water quality parameters and their interrelationship to support the current water quality monitoring system of U-tapao river. The data of physico-chemical and biological parameters namely: temperature, pH, electrical conductivity, suspended solid, turbidity, biological oxygen demand, dissolved oxygen, ammonia, and fecal coliform bacteria were collected from twenty-one monitoring stations of the basin from year 2004 to 2011. Analysis of variance, correlation analysis, and principal …
Utilization Of Silica Waste To Replace Silica Fume For Mixed Mortar, Petchporn Chawakitchareon, Natthapol Sresthaolarn
Utilization Of Silica Waste To Replace Silica Fume For Mixed Mortar, Petchporn Chawakitchareon, Natthapol Sresthaolarn
Applied Environmental Research
This research investigated the utilization of silica waste to replace the imported condensed silica fume for the production of ready mixed mortar. The silica waste was classified using sieve analysis procedures in order to achieve a high degree of fineness with a spherical shape and average particle size of 3.2 microns. Classified silica waste was used to replace 10 % volume content weight of Type I Portland cement to produce ready mixed mortar. In addition, the samples of condensed silica fume obtained from a representative supplier were also used to produce ready mixed mortar by replacing 10 % cement by …
Environmental Performance Of Marble Tile Life Cycle, Nachawit Tikul
Environmental Performance Of Marble Tile Life Cycle, Nachawit Tikul
Applied Environmental Research
Accurate data and information about life cycle environmental impacts of building materials are critical for environmental-friendly building design. This paper reports the findings of environmental impacts assessment of marble tiles produced in Thailand. The life cycle assessment (LCA) approach was employed and the ecoindicator 95 methodology was used in the assessment. Six impact categories were assessed; global warming, acidification, ozone depletion, eutrophication, winter smog, and summer smog. The results show that manufacturing phase contributes the highest impacts compared with other phases of the marble tile life cycle, and the block cutting process is the greatest contributor. Transportation of finished products …
Removal Of Lead By Using Na-A Zeolite Synthesized From Spent Silica-Alumina, Pimonpan Uttapan, Petchporn Chawakitchareon, Dawan Wiwattanadate
Removal Of Lead By Using Na-A Zeolite Synthesized From Spent Silica-Alumina, Pimonpan Uttapan, Petchporn Chawakitchareon, Dawan Wiwattanadate
Applied Environmental Research
This research was carried out in order to investigate the adsorption efficiency of lead removal using sodalite and Na-A zeolite synthesized from spent silica - alumina. The starting material composition used in this experiment was: Al2O3: 1.926 SiO2: 3.165 Na2O: 128 H2O. The optimum condition used to synthesize zeolite was at 90 oC for 4 hr. The experiment was carried out by using sodalite and Na-A zeolite as an adsorbent for removing lead from aqueous solution. The adsorption was carried out in batch experiment. The results indicated that the optimum condition of sodalite and Na-A zeolite for lead adsorption was …
Carbon Footprint Of An Academic Organization: A Case Study Of The Department Of Environmental Of Environmental Engineering, Chulalongkorn University, Boonjira Janangkakan, Orathai Chavalparit, Premrudee Kanchanapiya
Carbon Footprint Of An Academic Organization: A Case Study Of The Department Of Environmental Of Environmental Engineering, Chulalongkorn University, Boonjira Janangkakan, Orathai Chavalparit, Premrudee Kanchanapiya
Applied Environmental Research
This paper presented the carbon footprint evaluation of an academic institution, direct and indirect greenhouse gas (GHG) emissions were calculated. The major sources of GHG emissions were classified into four main categories, which were energy use, materials use, transportation, and waste (wastewater treatment and solid waste disposal). The aim of this research was to evaluate the GHG emissions of the Department of Environmental Engineering, Chulalongkorn University and to develop alternative options for reduction of the GHG emissions using the Life Cycle Assessment Methodology as a key factor. The result showed that the total carbon footprint of the department based on …
Phytoplankton Community In Cage Culture Farm Areas In The Andaman Coast Of Thailand, Suwat Tanyaros, David Crookall
Phytoplankton Community In Cage Culture Farm Areas In The Andaman Coast Of Thailand, Suwat Tanyaros, David Crookall
Applied Environmental Research
Fish excretory products from cage culture farms combine with nutrients released from the breakdown of excess feed to raise nutrient levels well above normal, creating an ideal environment for phytoplankton blooms. This study was carried out in the Andaman Coast of Thailand to elucidate (a) the impact of cage farms on phytoplankton production, and (b) how water quality affects the phytoplankton community in the area. Phytoplankton and water quality were monitored in cage culture farms from April 2007 to May 2008 in four provinces, (Phang-nga, Krabi, Trang and Satun) along the coast of the Andaman Sea, in southern Thailand. Phytoplankton …
Factors Affecting Farmer's Readiness For Entitling The Standard Swine Farm, Siranee Sriwichian, Kampanat Vijitsrikamol, Am-On Angsuratana
Factors Affecting Farmer's Readiness For Entitling The Standard Swine Farm, Siranee Sriwichian, Kampanat Vijitsrikamol, Am-On Angsuratana
Applied Environmental Research
The objectives of the study were to obtain: 1) farm management of the farmers under the swine farm standard and 2) factors affecting farmer's readiness for entitling the standard swine farm. The samples were drawn from 78 swine farmers in Sam Khwai Phueak Sub-district, Mueang District, Nakhon Pathom Province. The analytical tools of the study comprised descriptive statistics and a multinomial logit model for analyzing the factors affecting farmer's readiness for entitling the standard swine farm. The finding indicated that according to the swine farm standard, the majority of the farmers have performed as follows: 1) farm composition aspect: the …
Modeling Of Sediment Transport In Mae Tao Creek, Tak Province, Thailand, Wunvisa Tharathammathigorn, Pichet Chaiwiwatworakul
Modeling Of Sediment Transport In Mae Tao Creek, Tak Province, Thailand, Wunvisa Tharathammathigorn, Pichet Chaiwiwatworakul
Applied Environmental Research
This research focused on the bed sediment transport during wet season in Mae Tao Creek, Mae Sot District, Tak Province. Sediment was the main source of cadmium transport in Mae Tao Creek. MIKE 11 was used to model the channel flow and bed sediment transport. The model was run in hydrodynamic (HD) and sediment transport module (ST). Time series of water depth from May to October were used to calibrate the hydrodynamics of the creek. The reliability of hydrodynamic results was evaluated based on the correlation coefficient (CC) and Root Mean Square Error (RMSE). The CC and RMSE obtained during …
Factors Affecting Swine Farmer's Decision On Selecting Waste Treatment Systems, Supawan Phupan, Kampanat Vijitsrikamol, Am-On Angsuratana
Factors Affecting Swine Farmer's Decision On Selecting Waste Treatment Systems, Supawan Phupan, Kampanat Vijitsrikamol, Am-On Angsuratana
Applied Environmental Research
The objective of the study were to obtain 1) socioeconomic background of the swine farmers and their current waste treatment system used on farm; 2) the suitable and technically possible waste treatment system for the study site; and 3) factors affecting farmers' decision on selecting waste treatment system. The sample were drawn from 78 swine farmers in Sam Khwai Phueak Sub-district, Mueang District, Nakhon Pathom Province. The analytical tools of the study comprised descriptive statistics and a multinomial logit model for analyzing the factors affecting farmers' decision on selecting waste treatment system. The suitable and technically possible waste treatment systems, …
Feasibility Study For Make-Up Water Quality For Cooling Tower By Electro-Coacgulation Process, Sasipim Manasilp, Cattaleeya Pattamaprom
Feasibility Study For Make-Up Water Quality For Cooling Tower By Electro-Coacgulation Process, Sasipim Manasilp, Cattaleeya Pattamaprom
Applied Environmental Research
Cooling tower was a type of heat transfer equipment which was used to enhance heat rejection to the environment by increasing the surface contact between water and air. Water used in the cooling tower system had to be pretreated to prevent scaling and corrosion. As most factories in the northern part of Bangkok utilized both tap water and groundwater, which was known to contain large amount of minerals and suspended solids, water pretreatment was crucial before entering cooling towers or the heat-exchanging systems. Typical water pretreatment system consisted of sand filtration, carbon adsorption and ion-exchange resin adsorption to remove particles …
Efficiency Of Triple Superphosphate Fertilizer To Stabilize Cadmium In Different Soil Texture Characteristics, Chatchavaporn Yingsombat, Usarat Thawornchaisit
Efficiency Of Triple Superphosphate Fertilizer To Stabilize Cadmium In Different Soil Texture Characteristics, Chatchavaporn Yingsombat, Usarat Thawornchaisit
Applied Environmental Research
This research investigated the effectiveness of Triple Superphosphate (TSP) as a stabilizing agent for cadmium (Cd) in three representative soils having different texture characteristics (loamy-sand, clay loam, and clay soils). Results showed that addition of TSP proved to be an effective method for reduction of Cd leachability in all Cd contaminated soils. The partitioning of Cd from the potentially available phase to the more stable phase was observed in all TSP treatments based on the sequential extraction data. Moreover, performance of TSP to immobilize Cd depended on soil types and compositions. The effectiveness of TSP to reduce Cd leachability was …
Effects Of Ferrocene On The Solubilization Of Alkanes In A Microemulsion System, Saravanee Singtong, Chantra Tongcumpou, David A. Sabatini
Effects Of Ferrocene On The Solubilization Of Alkanes In A Microemulsion System, Saravanee Singtong, Chantra Tongcumpou, David A. Sabatini
Applied Environmental Research
Ferrocene is a metallic additive that has been used to boost the octane number of gasoline. Even though ferrocene is not an environmental contaminant of high concern, it can be found in soil contaminated with gasoline. Due to its organometallic nature, ferrocene may affect the phase behavior of other alkanes which has been contaminated to the environment and limit their removal using surfactant-enhanced aquifer remediation (SEAR). Therefore, the aim of this work was to investigate the effects of ferrocene on the solubilization capacity of alkanes in micellar surfactant solutions. The solubilization capacity and column study of alkanes with and without …
Effects Of Smoking Locations And Room Ventilation On Occupant Exposure To Environmental Tobacco Smoke, Chaloemchai Mukthawat, Maneerat Ongwandee, Nida Chaimoon
Effects Of Smoking Locations And Room Ventilation On Occupant Exposure To Environmental Tobacco Smoke, Chaloemchai Mukthawat, Maneerat Ongwandee, Nida Chaimoon
Applied Environmental Research
Non smoker exposure to second hand smoke is still of concern even though smoking free environments have been implemented in public places in Thailand. Thus, smokers have changed their behavior to smoke in their dwellings instead which could cause pollutant transfers from a smoking area to an adjacent non smoking area by air flows between zones. The objective of this study was to investigate relative magnitudes of environmental tobacco smoke (ETS) in a non smoking area that is adjacent to a smoking residential area. The study was also to demonstrate the effect of room ventilation rates on exposure levels of …