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Articles 241 - 270 of 777
Full-Text Articles in Environmental Studies
Risk Assessment Of Total Mercury (T-Hg) In Commercial Seafood Marketed In Bangkok, Thailand, Irwan Ramadhan Ritonga, Sujaree Bureekul, Penjai Sompongchaiyakul
Risk Assessment Of Total Mercury (T-Hg) In Commercial Seafood Marketed In Bangkok, Thailand, Irwan Ramadhan Ritonga, Sujaree Bureekul, Penjai Sompongchaiyakul
Applied Environmental Research
Seafood is recognized as the high protein source of human consumption. However, it is hampered by mercury contamination. The objectives of this study are to determine total mercury (T-Hg) levels in edible portions of commercial seafood available in Bangkok’s supermarkets, and to evaluate the potential risks from mercury through seafood consumption. Total 32 species, including 22 fish, 4 cephalopod and 6 shellfish, were purchased from super-markets. Fish samples were dissected in 3 parts comprised of flesh, gill and viscera. While, cephalopod and shellfish were separated for edible tissues. The samples were digested in hot acid and were determined using cold-vapor …
Prediction Of Groundwater Quality Index In The Selected Divisions Of Srikakulam Using Artificial Neural Networks Approach, Santhosh Kumar Nadikatla, Mushini Venkata Subbarao, M.P.S. Murali Krishna
Prediction Of Groundwater Quality Index In The Selected Divisions Of Srikakulam Using Artificial Neural Networks Approach, Santhosh Kumar Nadikatla, Mushini Venkata Subbarao, M.P.S. Murali Krishna
Applied Environmental Research
Applicability of artificial neural network (ANN) modelling in predicting the water quality index (WQI) and in turn to ascertain the suitability of the water for human consumption has been presented in the paper. In the light of the present study, seventy-nine (79) groundwater samples were collected from two mandals (divisions) Veeraghattam (VGT) and Palakonda (PLKD) and analyzed for physicochemical parameters during the pre-monsoon and post-monsoon seasons of 2015 and 2016. In computing the WQI, physicochemical parameters such as pH, EC, TDS, TH, Ca, Mg, chlorine, fluoride, nitrite, DO and TA have been considered. From the results it was found that …
Groundwater Quality Assessment Using Groundwater Quality Index And Multivariate Statistical Methods And Human Health Risk Assessment In A Coastal Region Of The Vietnamese Mekong Delta, Nguyen Thanh Giao, Phan Kim Anh, Huynh Thi Hong Nhien
Groundwater Quality Assessment Using Groundwater Quality Index And Multivariate Statistical Methods And Human Health Risk Assessment In A Coastal Region Of The Vietnamese Mekong Delta, Nguyen Thanh Giao, Phan Kim Anh, Huynh Thi Hong Nhien
Applied Environmental Research
This study aimed to evaluate the suitability of groundwater for drinking purposes and assess the associated human health risks for different age groups in a coastal province of Mekong Delta, Vietnam. Twenty groundwater samples were collected in Soc Trang Province, and various water quality parameters were analyzed. The data were employed to calculate entropy-weighted groundwater quality index (EWQI), principal component analysis (PCA), cluster analysis (CA), and non-carcinogenic and carcinogenic risks for adult and children health. The results revealed that groundwater in some locations, especially in GW19, was polluted by hardness, total dissolved solids, NH4+, Cl-, Fe, total coliform, and E. …
The Driving Force Of Urban Water Body Change In Chonburi Province, Thailand, Nararuk Boonyanam, Somskaow Bejranonda
The Driving Force Of Urban Water Body Change In Chonburi Province, Thailand, Nararuk Boonyanam, Somskaow Bejranonda
Applied Environmental Research
The rapid urbanization from special economic zones (SEZs) in Asia poses a risk on water crisis. This paper identifies water body change trend and its driving force of change in Chonburi province; the most urbanized area in the Eastern Economic Corridor (EEC) of Thailand, in order to analyse the root cause of water shortage in the area. Land use maps from 2006 to 2019 were used to evaluate the changing trend in water bodies using land use transition matrix and land use dynamic degree. Panel data from 364 observations in the Chonburi sub-district was used to assess the driving forces …
Assessment Of Emissions From Cement Plants Using Aermod Modeling, Atef I. Abdel-Gawad, Mahmoud Noureldeen, Hamada Mahmaoud, Asmaa S. Hamouda
Assessment Of Emissions From Cement Plants Using Aermod Modeling, Atef I. Abdel-Gawad, Mahmoud Noureldeen, Hamada Mahmaoud, Asmaa S. Hamouda
Applied Environmental Research
Coal combustion generates many gases and emissions which are harmful to public health and the environment. So, it is necessary to assess the health risks for the people living in the nearby cement plants that use coal as a fuel. In this article, a health risk assessment HRA was carried out concerning the air emissions from a cement plant in the heavy industry area located at Beni Suef governorate - Egypt. The article handles the assessment of the health risks for pollutants classified as non-carcinogenic i.e. sulfur dioxide - mercury and the health risks for pollutants classified as carcinogenic i.e. …
Preliminary Study And First Evidence Of Presence Of Microplastics In Green Mussel, Perna Viridis From Phuket, Phaothep Cherdsukjai, Vararin Vongpanich, Pensiri Akkajit
Preliminary Study And First Evidence Of Presence Of Microplastics In Green Mussel, Perna Viridis From Phuket, Phaothep Cherdsukjai, Vararin Vongpanich, Pensiri Akkajit
Applied Environmental Research
Plastics can reach the coastal environment and could impact the marine environment. Mussels are marine organisms which are prone to be exposed to microplastics pollution. Therefore, in this preliminary study, the commercially important green mussel (Perna viridis) collected at the Koh Phee Canal in Phuket, Phuket Province, southern peninsular Thailand, was investigated. The collected mussels from aquaculture farm fell into three age groups, namely 1 year-1 month, 1 year-7 months, and 1 year-9 months. Results from the investigation showed 200 items of microplastics present in Perna viridis with 76 items (38%) in flushed water and 124 items (62%) …
Using Theory Of Planned Behavior To Determine Consumer Intention In Choosing Cloth Vs Plastic Bags, Zahra Batooli, Saeed Zarein-Dolab, Azam Mohamadloo, Mitra Rahimzadeh
Using Theory Of Planned Behavior To Determine Consumer Intention In Choosing Cloth Vs Plastic Bags, Zahra Batooli, Saeed Zarein-Dolab, Azam Mohamadloo, Mitra Rahimzadeh
Applied Environmental Research
Plastics bags waste presets serious danger to human and animal health. A descriptive study was conducted on 250 consumers who were shopping in different stores of Kashan city in Iran in 2020 to investigate the consumers’ intention, attitude, subjective norms and perceived behavioral control towards reducing the consumption of plastic bags and using cloth bags based on the theory of planned behavior (TPB). Stratified sampling was applied to select the consumers to filled out a questionnaire developed based on the TPB in Farsi. A path analysis was used to investigate whether attitude, subjective norms, and perceived behavioral control would have …
Analysis Of Potential Site For Managed Aquifer Recharge Scheme In The Upper Greater Mae Klong Irrigation Project, Thailand, Yutthana Phankamolsil, Areeya Rittima, Sasipong Rantasewee, Yutthana Talaluxmana, Kritsanat Surakit, Allan Sriratana Tabucanon, Wudhichart Sawangphol, Jidapa Kraisangka
Analysis Of Potential Site For Managed Aquifer Recharge Scheme In The Upper Greater Mae Klong Irrigation Project, Thailand, Yutthana Phankamolsil, Areeya Rittima, Sasipong Rantasewee, Yutthana Talaluxmana, Kritsanat Surakit, Allan Sriratana Tabucanon, Wudhichart Sawangphol, Jidapa Kraisangka
Applied Environmental Research
This study developed a groundwater flow model to propose the possible Managed Aquifer Recharge (MAR) scheme for sustainable use of groundwater in the Upper Greater Mae Klong Irrigation Project, Thailand. The site suitability for MAR scheme was assessed through the GIS–based Multi–Criteria Decision Making (MCDM) using the Simple Additive Weighted (SAW) method. Five key relevant factors namely; groundwater drawdown, soil texture, depth to groundwater table, land slope and distance to surface water source were chosen as assessment criteria and reclassified for the analysis of site selection for MAR scheme. The results illustrate the potential site for the managed aquifer recharge …
Assessment Of Organophosphorus Pesticide Residues In Water And Sediment Collected From The Southern Caspian Sea, Reza Golshani, Ghasem Ghorbanzadeh Zafarani, Maksim Rebezov, Samaneh Karbalaei, Tony R. Walker
Assessment Of Organophosphorus Pesticide Residues In Water And Sediment Collected From The Southern Caspian Sea, Reza Golshani, Ghasem Ghorbanzadeh Zafarani, Maksim Rebezov, Samaneh Karbalaei, Tony R. Walker
Applied Environmental Research
Pollution of water resources by uncontrolled pesticide use is a serious health and environmental issue. In this study, concentrations of three organophosphorus pesticides (diazinon, malathion, and azinphos-methyl) in water and sediment samples from five estuaries (Sefidrud, Chalus, Babolrud, Tajan, and Gorganrud) along the Caspian Sea were investigated. Samples were collected from surface water and sediment during summer to autumn, and pesticides were analysed by gas chromatography-mass spectrometry (GC-MS). Results indicated that salinity and turbidity in Gorganrud were higher (salinity: range 2–8%; turbidity: range 1–9%) compared to other stations. Higher diazinon (water: 0.08±0.06, sediment: 0.04±0.01), malathion (water: 0.09±0.06, sediment: 0.05±0.01) and …
Sustainable Energy Transition In Thailand: Drivers, Barriers And Challenges Of Waste-To-Energy At Krabi Province, Chariya Senpong, Dawan Wiwattanadate
Sustainable Energy Transition In Thailand: Drivers, Barriers And Challenges Of Waste-To-Energy At Krabi Province, Chariya Senpong, Dawan Wiwattanadate
Applied Environmental Research
Waste-to-Energy (WtE) has been considered as an option to eliminate Krabi’s problems of municipal solid waste (MSW) management. A survey on WtE potential as well as key drivers, barriers, and challenges to overcome the barriers was conducted in this study. The study found high WtE potential due to huge amount of many years accumulated MSW in couple with the increasing trend of new daily waste generation. Meanwhile, Krabi is an island having land limitation for landfill. The urgent need to eliminate the huge amount of MSW has become a key driver for WtE implementation. One more key driver of WtE …
Magnetization Of A Biochar Derived From Orange Peel And Its Application For The Removal Of Crystal Violet, Issam Boudraa, Sevde Ustun Odabasi, Maryam Bareera, Hassan Ayadi, Brahim Kebab, Hanife Buyukgungor
Magnetization Of A Biochar Derived From Orange Peel And Its Application For The Removal Of Crystal Violet, Issam Boudraa, Sevde Ustun Odabasi, Maryam Bareera, Hassan Ayadi, Brahim Kebab, Hanife Buyukgungor
Applied Environmental Research
In this work, biochar synthesized from orange peel modified with magnetite was used as an alternative magnetic adsorbent for dye removal. The magnetization of the synthesized biochar was done using the co-precipitation method. The obtained composite was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Raman spectroscopy. The efficiency of magnetized biochar (OPB/Fe3O4) was studied in the process of removing crystal violet (CV) from an aqueous solution at different temperatures. The experimental data obtained for the kinetic studies were better fitted to the pseudo-second-order model, and the isotherms data were well fitted to the Langmuir model. The results …
Performance Of Porous Substrates For Domestic Wastewater Treatment Under Prolonged Hydraulic Retention Time, Pakawat Janyasupab, Arunothai Jampeetong
Performance Of Porous Substrates For Domestic Wastewater Treatment Under Prolonged Hydraulic Retention Time, Pakawat Janyasupab, Arunothai Jampeetong
Applied Environmental Research
Physicochemical characteristics of porous substrates (longan biochar, corn biochar, and pumice) including specific surface area (SSA), pore volume (Vp), and cation exchange capacity (CEC) were determined. Longan biochar had the highest SSA, Vp, and CEC, followed by corn biochar and pumice. Then, columns filled with each of these 3 substrates together with gravel as a control treatment, were evaluated to compare wastewater treatment efficiency under different hydraulic retention times (HRTs). Each system had been acclimatized with wastewater for 8 weeks. Then, influent and effluent were analyzed at 1, 3, 5, and 7 day intervals. Water analysis revealed that biochar-based systems …
Disinfection By-Product Precursor Removal By Biochar Derived From Agricultural Waste, Sorawit Ritthisoonthorn, Yuvarat Ngernyen, Lippakorn Songnangrong, Warodom Rattanaboonta, Watsa Khongnakorn, Panitan Jutaporn
Disinfection By-Product Precursor Removal By Biochar Derived From Agricultural Waste, Sorawit Ritthisoonthorn, Yuvarat Ngernyen, Lippakorn Songnangrong, Warodom Rattanaboonta, Watsa Khongnakorn, Panitan Jutaporn
Applied Environmental Research
Biochar made from agricultural waste products can be used as a low-cost adsorbent targeting dissolved organic matter (DOM). In water treatment plant (WTP), DOM reacts with chlorine-based disinfectant and forms carcinogenic disinfection by-products. The objective of this study was to investigate the applicability of bamboo biochar derived from wood vinegar production waste as an adsorbent for DOM removal and subsequently trihalomethane formation potential (THM-FP) reduction. Raw biochar (BCRaw) and 800°C post-heated biochar (BC800) was tested for its surface characteristics including scanning electron microscopy, Fourier transform infrared spectroscopy and Brunauer, Emmett and Teller analysis. The post-pyrolysis treatment increased the surface area …
Spatial Distribution Of Bioavailable Metal Concentrations And Total Metal Concentration-Depth Relationship Along The Sediment Profile Within Phuket Bay, Pensiri Akkajit, Danai Tipmanee, Kaimook Jaileak
Spatial Distribution Of Bioavailable Metal Concentrations And Total Metal Concentration-Depth Relationship Along The Sediment Profile Within Phuket Bay, Pensiri Akkajit, Danai Tipmanee, Kaimook Jaileak
Applied Environmental Research
Heavy metals in coastal sediments can adversely affect human health and the environment. The distribution and metal bioavailability of Pb and Zn in 21 sediment samples collected from Phuket Bay, Phuket, Thailand using the first-two steps of sequential extraction proposed by the Standards, Measurements and Testing programme (known as BCR) was determined. The results showed that Pb formed weak complexes contributing up to 11.2% to 33% of its total concentration (1.7 to 7.5 mg kg-1) in the first fraction (BCR1), while Zn in the BCR1 fraction ranged from 4.9% to 9.9%. The results suggest that Pb could easily enter the …
Identification Of Saline Water Intrusion Using Integrated Geoelectrical Method In The Coastal Aquifer Of Holo-Quaternary Formation, Lampung Bay, Rustadi -, Agus Setiawan, I Gede Boy Darmawan, Suharno -, Nandi Haerudin
Identification Of Saline Water Intrusion Using Integrated Geoelectrical Method In The Coastal Aquifer Of Holo-Quaternary Formation, Lampung Bay, Rustadi -, Agus Setiawan, I Gede Boy Darmawan, Suharno -, Nandi Haerudin
Applied Environmental Research
Increased groundwater extraction from aquifers in Holo-Quaternary rock formations in Lampung Bay has caused saltwater intrusion. This indication appears in several community wells and can spread further inland. Therefore, this study aims to identify the distribution of areas exposed to saline water and the boundaries of areas that have not, especially in the Holo-Quaternary Formation. This research uses the geoelectric method integrated with salinity data and the Soil Penetration Test (SPT) analysis at four drilling points. A total of 4 lines of Electrical Resistivity Tomography (ERT) and 8 points of Vertical Electrical Sounding (VES) have been acquired with a Schlumberger …
Flood Hazard Mapping And Assessment Of Precipitation Monitoring System Using Gis-Based Morphometric Analysis And Trmm Data: A Case Study Of The Wadi Qena Watershed, Egypt, Wael M. Elsadek, Wael E. Mahmod, Mona G. Ibrahim
Flood Hazard Mapping And Assessment Of Precipitation Monitoring System Using Gis-Based Morphometric Analysis And Trmm Data: A Case Study Of The Wadi Qena Watershed, Egypt, Wael M. Elsadek, Wael E. Mahmod, Mona G. Ibrahim
Applied Environmental Research
Wadi Qena is one of the Nile Valley areas particularly at risk of severe flash flooding, located in Egypt. The study aims to verify TRMM rainfall data (TRMM 3B42), using eight stations across Egypt as well as relies on morphometric analysis to generate a flood risk map based on the ranking method. Three process could be recognized through the study, calibration, correction and verification processes. The results discuss the match daily rainfall trends of TRMM and observed data, producing a correction equation for TRMM data with root mean square error (RMSE) value of 0.837 mm d-1 and R2= 0.238 (calibration …
Biochar From Rice Husk As Efficient Biosorbent For Procion Red Removal From Aqueous Systems, Neza R. Palapa, Tarmizi Taher, Novie Juleanti, Normah Normah, Aldes Lesbani
Biochar From Rice Husk As Efficient Biosorbent For Procion Red Removal From Aqueous Systems, Neza R. Palapa, Tarmizi Taher, Novie Juleanti, Normah Normah, Aldes Lesbani
Applied Environmental Research
Numerous reports have elucidated the use of biochar (BC) to adsorb dyes from wastewater. However, its applicability for adsorbing Procion Red, which causes carcinogenic and mutagenic effects on aquatic life, has not been studied. In this work, biochar produced from rice husk in Sumatera, Indonesia was used as a biosorbent for Procion Red removal from aqueous systems. Rice husk-BC was characterised using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, surface area specific analysis, and scanning electron microscopy (SEM) for mor-phological analysis. The characterisation showed a (002) reflection peak at 2θ = 23° with broad and quite intense diffraction, which …
Monitoring The Land Cover Changes In Mangrove Areas And Urbanization Using Normalized Difference Vegetation Index And Normalized Difference Built-Up Index In Krabi Estuary Wetland, Krabi Province, Thailand, Katawut Waiyasusri
Applied Environmental Research
Krabi Estuary Wetland (KEW) is an outstanding wetland with an estuary environment. At present, the tourism industry has rapidly grown, resulting in the impact of land cover changes. This research aims to assess the changes that have occurred in the KEW from 1999 to 2020 using NDVI and NDBI for monitoring changes in mangrove areas and urbanization in Krabi Province, Thailand. Landsat satellite images in years 1999, 2009 and 2020 were classified by using a band ratio to create land cover maps. The results show that NDVI between 0.41–1.00 clearly shows the mangrove forest area, while NDBI between 0.01–0.40 shows …
Application Of Gis And Multi-Criteria Statistical Techniques In Assessing Water Quality In The Coastal Province Of Vietnamese Mekong Delta, Giao Thanh Nguyen, Thi Hong Nhien Huynh
Application Of Gis And Multi-Criteria Statistical Techniques In Assessing Water Quality In The Coastal Province Of Vietnamese Mekong Delta, Giao Thanh Nguyen, Thi Hong Nhien Huynh
Applied Environmental Research
The study was conducted to evaluate the quality and spatial distribution of surface water quality in Soc Trang, a coastal province using Geographic information system (GIS) and multivariate statistical analysis. Water monitoring data was collected from 19 sampling locations with 19 parameters were analyzed from February 2019 to August 2020. The results indicated that water quality was contaminated with organic matters, nutrients, coliforms and salinity. Water quality index (WQI=22–73) indicated that water quality was from poor to medium level. Cluster analysis (CA) classified 19 monitoring sites into 7 groups and 19 months into 3 seasons including rainy season, rainy season-early …
Adsorption Of Methylene Blue By Low-Cost Biochar Derived From Elephant Dung, Yanasinee Suma, Nittaya Pasukphun, Numfon Eaktasang
Adsorption Of Methylene Blue By Low-Cost Biochar Derived From Elephant Dung, Yanasinee Suma, Nittaya Pasukphun, Numfon Eaktasang
Applied Environmental Research
Elephant dung biochar (ED350) prepared by controlled heating at 350 ºC was used to adsorb methylene blue (MB) in an aqueous solution. The effects of adsorption time, pH, adsorbent dosage, and initial MB concentration were examined. Kinetic, isotherm, and thermo-dynamic models were then further analyzed to determine the adsorption. The results show that ED350 was found to be efficient within 180 min. The optimum pH of MB adsorption was 11. The Langmuir isotherm model was found to be the most suitable fit for the adsorption equilibrium data, with ED350 having a homogeneous surface. The calculated equilibrium parameter (RL) …
A Workforce And Truck Allocation Model In A Solid Waste Management System: A Case From Nigeria, Desmond E. Ighravwe, Sunday A. Oke
A Workforce And Truck Allocation Model In A Solid Waste Management System: A Case From Nigeria, Desmond E. Ighravwe, Sunday A. Oke
Applied Environmental Research
No abstract provided.
Spatiotemporal Flood Risk Determination And Management For A Large River Basin, Nuanchan Singkran
Spatiotemporal Flood Risk Determination And Management For A Large River Basin, Nuanchan Singkran
Applied Environmental Research
No abstract provided.
Synergistic Effect Of Waste Feedstock Mixture And Torrefaction Pre-Treatment On Some Briquette Characteristics Of Cornhusk And Sawdust Wastes, Mufutau A. Waheed, Opeyemi A. Akogun
Synergistic Effect Of Waste Feedstock Mixture And Torrefaction Pre-Treatment On Some Briquette Characteristics Of Cornhusk And Sawdust Wastes, Mufutau A. Waheed, Opeyemi A. Akogun
Applied Environmental Research
Agricultural waste management through energy recovery is one of the critical options that could drive the clean energy production industry and properly replace the use of coal in Nigeria if done sustainably. The objective of this work therefore is to study the synergetic effect of waste feedstock mixture and torrefaction pre-treatment on some physical and performance characteristics of briquettes from cornhusk (CH) and sawdust (SD) wastes. In this work, CH and SD wastes were processed raw and torrefied at 200 to 300 °C and were mixed in the ratios between 90/10 and 10/90 for briquette production using D-optimal crossed design. …
A Study Of Policy Implementation And Community Participation In The Municipal Solid Waste Management In The Philippines, Mary E.C. Camarillo, Luzvisminda M. Bellotindos
A Study Of Policy Implementation And Community Participation In The Municipal Solid Waste Management In The Philippines, Mary E.C. Camarillo, Luzvisminda M. Bellotindos
Applied Environmental Research
Municipal solid waste (MSW) management has become one of the most pressing environmental concerns of the Philippines at present. Several measures have been implemented to circumvent this issue, including waste management policies stipulated in the Ecological Solid Waste Management Act of 2001. However, the implementation of these policies even at the barangay level has always been a challenge. Hence, this study assessed the compliance of selected barangays in Cebu City, Philippines, specifically to the integrated solid waste management plan based on the 3R’s (reduce, reuse, and recycle). A descriptive quantitative method was utilized in this study. There were 1523 residents …
Characteristics Of Surface Water Quality And Diversity Of Zoobenthos In Water Bodies, An Giang Province, Vietnam, Giao Thanh Nguyen, Thi Hong Nhien Huynh, Hoang Dan Truong
Characteristics Of Surface Water Quality And Diversity Of Zoobenthos In Water Bodies, An Giang Province, Vietnam, Giao Thanh Nguyen, Thi Hong Nhien Huynh, Hoang Dan Truong
Applied Environmental Research
The use of zoobenthos to evaluate water quality has gained considerable interest due to its low cost and environmental friendliness. This study analyzed water and zoobenthos samples at 13 sites in the water bodies in An Giang province in the rainy season (on March) and dry season (on September) in 2018. The results showed that the surface water was contaminated by organic matters, suspended solids and coliforms. There was occurrence of 28 species of zoobenthos divided into five classes including Oligochaeta, Polychaeta, Insecta, Gastropoda, and Bivalvia in which Bivalvia was the most diverse class accounting for 75%. The densities of …
Ambient And Indoor Pm10 And Pm10-Bound Pahs Around The Vicinity Of An Industrial Estate In Rayong, Thailand: Concentration And Source Identification, Navaporn Kanjanasiranont, Tassanee Prueksasit, Narut Sahanavin
Ambient And Indoor Pm10 And Pm10-Bound Pahs Around The Vicinity Of An Industrial Estate In Rayong, Thailand: Concentration And Source Identification, Navaporn Kanjanasiranont, Tassanee Prueksasit, Narut Sahanavin
Applied Environmental Research
The ambient and indoor air concentrations of PM10 and PM10-bound PAHs (16 priority PAHs) were investigated in Rayong Province, Thailand. The locations of the selected study areas were Map Ta Phut Industrial Estate and its vicinity comprising six sampling sites (four industrial areas and two vicinity areas). The indoor and ambient air samples of were collected in March 2017. The sampling sites located close to the road were detected the greatest ambient average concentrations of PM10, with an average value of 56.06 µg m-3 (Map Chalut Area or MC). The levels of indoor PM10 were mostly dependent on the resident …
Inspection And Understanding Of Sewer Network Condition In Dindaeng District (Thailand), Hnin E. Phyu, Sutha Khaodhiar
Inspection And Understanding Of Sewer Network Condition In Dindaeng District (Thailand), Hnin E. Phyu, Sutha Khaodhiar
Applied Environmental Research
Sewer pipelines are usually operated with little maintenance after installation. After years in service, sewer pipes get old and deteriorated. The present research is the first study that attempts to inspect the condition of sewer pipelines in the Bangkok Metropolitan Area. A robot with Closed Circuit Television (CCTV) was used to capture videos and images of the interior of the sewer pipelines between two manholes. The system was operated by Utility Business Alliance (UBA) Company. The condition of the sewer pipelines was visually analyzed in line with the scoring and grading system of New Zealand’s pipe inspection manual. CCTV footage …
Consequence Of Seawater Intrusion On Soil Properties In Agricultural Areas Of Nonthaburi Province, Thailand, Napaporn Phankamolsil, Kiattisak Sonsri, Yutthana Phankamolsil
Consequence Of Seawater Intrusion On Soil Properties In Agricultural Areas Of Nonthaburi Province, Thailand, Napaporn Phankamolsil, Kiattisak Sonsri, Yutthana Phankamolsil
Applied Environmental Research
Seawater intrusion associated with climate change and sea level rise (SLR) has been postulated for the last decade that causes negative impact on worldwide environmental resources. In Thailand, however; the information pertaining to its effect on soil properties in agricultural areas has not been clearly reported yet. Hence, this study aimed to investigate the seawater intrusion effect on soil properties in agricultural areas of Nonthaburi Province, Thailand. Five study locations, which anticipated to be affected by seawater intrusion, were selected based on the different distances from the Chao Phraya River. Soil morphological properties were recorded, besides undisturbed soil samples at …
Air Quality Indexing, Mapping And Principal Components Analysis Of Ambient Air Pollutants Around Farm Settlements Across Ogun State, Nigeria, Funmilola Oyebanji, Godson Ana, Opeyemi Tope-Ajayi, Adebayo Sadiq, Yahaya Mijinyawa
Air Quality Indexing, Mapping And Principal Components Analysis Of Ambient Air Pollutants Around Farm Settlements Across Ogun State, Nigeria, Funmilola Oyebanji, Godson Ana, Opeyemi Tope-Ajayi, Adebayo Sadiq, Yahaya Mijinyawa
Applied Environmental Research
The focus of this study was to portray the spatial pattern of air quality across seasons in the eight sampled farm settlements using air quality indexes and assess the clusters of monitored air pollutants. The concentrations of air pollutants were determined using in-situ portable gas detectors and particulate counter. The AQI for each criteria pollutants (CO, O3, TSP, PM10, SO2, and PM2.5) was calculated using AQI formulae of the United States Environmental Protection Agency and mapped using the Inverse distance weighting (IDW) interpolation method in the Geographic information systems (GIS) environment. Principal component analysis (PCA) was used to group the …
Treatment Of Iron From Groundwater By Ozonation: Influence Of Hardness As A Scavenger, Apiradee Sukmilin, Ratsamee Sangsirimongkolying
Treatment Of Iron From Groundwater By Ozonation: Influence Of Hardness As A Scavenger, Apiradee Sukmilin, Ratsamee Sangsirimongkolying
Applied Environmental Research
This study assesses the efficiency of using ozone technology to treat iron from groundwater while hardness acts as a radical scavenger. Batch experiments were conducted to determine the effects of initial pH 6, 7 and 8, and hardness of 300, 400 and 500 mg L-1 and kinetic analysis. The optimum conditions were found to be initial pH of 8 and hardness of 300 mg L-1. The removal efficiency of iron by ozonation was 99.97%, which was higher than that of air without ozone applied (83.67%). However, the presence of hardness and tert-butanol (TBA) had a negative effect on the …