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  • 1
    Online Resource
    Online Resource
    Evaluate of air pollution dispersion and propose planing scenerios to reduce air pollution for livestock activities in Tan Thanh district, Ba Ria – Vung Tau province
    Viet Nam National University Ho Chi Minh City ; 2019
    In:  Science & Technology Development Journal - Science of The Earth & Environment Vol. 2, No. 2 ( 2019-05-29), p. 26-37
    Details
    In: Science & Technology Development Journal - Science of The Earth & Environment, Viet Nam National University Ho Chi Minh City, Vol. 2, No. 2 ( 2019-05-29), p. 26-37
    Abstract: Livestock is one of the main activities of the agricultural sector in Tan Thanh district, Ba Ria – Vung Tau province. Beside of pollution sources such as waste water, solid waste, livestock activity in Tan Thanh district, Ba Ria - Vung Tau province in recent years has caused air pollution in the livestock area and surrounding area. This research was carried out to evaluate the process of air pollution dispersion from livestock activities based on applying the TAPM meteorological model and AERMOD air quality model. The results showed that the maximum concentrations of air pollutants from livestock area such as NH3, H2S and CH3SH exceeded the National Technical Regulation on Ambient Air Quality (average hour) in the centre of Tan Thanh district, such as Toc Tien commune, part of Tan Phuoc and Phuoc Hoa communes, is 505 μg/m3; 57.4 μg/m3 and 111 μg/m3, respectively. Phu My district and other suburban communes (Hac Dich, Song Xoai, Chau Pha, Tan Hoa, Tan Hai, My Xuan, etc.) have distribution of lower concentrations of air pollutants. Base on the present results of modeling, the authors have proposed livestock development scenarios to control air pollution from this activity, contributing to environmental protection for Tan Thanh district.
    Type of Medium: Online Resource
    ISSN: 2588-1078 , 2588-1078
    URL: Article
    DOI: 10.32508/stdjsee.v2i2.491
    Language: Unknown
    Publisher: Viet Nam National University Ho Chi Minh City
    Publication Date: 2019
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  • 2
    Online Resource
    Online Resource
    Study loading capacties of air pollutant emissions for developing countries: a case of Ho Chi Minh City, Vietnam
    Springer Science and Business Media LLC ; 2020
    In:  Scientific Reports Vol. 10, No. 1 ( 2020-04-02)
    Details
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 10, No. 1 ( 2020-04-02)
    Abstract: Ho Chi Minh City (HCMC) is one of the cities in developing countries where many concentrations of air pollutants exceeded the Vietnam national technical regulation in ambient air quality including TSP, NO x , Ozone and CO. These high pollutant concentrations have destroyed the human health of people in HCMC. Many zones in HCMC can’t receive more air pollutants. The objectives of this research are: (i) Air quality modeling over HCMC by using the TAPM-CTM system model by using a bottom up air emission inventory; and (ii) Study loading capactities of air pollutant emissions over Ho Chi Minh City. Simulations of air pollution were conducted in Ho Chi Minh City (HCMC), the largest city of Vietnam by using the TAPM-CTM model. The model performance was evaluated using observed meteorological data at Tan Son Hoa station and air quality data at the Ho Chi Minh City University of Science. The model is then applied to simulate a retire 1-year period to determine the levels of air pollutants in HCMC in 2017, 2025 and 2030. The results show that the highest concentrations of CO, NO 2 , and O 3 in 2017 exceeded the National technical regulation in ambient air quality (QCVN 05:2013) 1.5, 1.5, and 1.1 times, respectively. These values also will increase in 2025 and 2030 if the local government does not have any plan for the reduction of emissions, especially, SO 2 in 2030 also will be 1.02 times higher than that in QCVN 05:2013. The emission zoning was initially studied by calculating and simulating the loading capacities of each pollutant based on the highest concentration and the National technical regulation in ambient air quality. The results show that the center of HCMC could not receive anymore the emission, even needs to reduce half of the emission. Under the easterly prevailing wind in the dry season, the high pollution was more likely to be experienced in the west of Ho Chi Minh. In contrast, the eastern regions were the upwind areas and the pollutants could transport to the downwind sectors. It was recommended that the best strategy for emission control in HCMC is avoiding industrial and urban development in the upwind areas to achieve better air quality for both areas. In the case of necessity to choose one area for development, the downwind sector is preferred. The results show that TAPM-CTM performed well as applied to simulate the air quality in HCMC and is a promising tool to study the emission zoning.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    URL: Article
    DOI: 10.1038/s41598-020-62053-4
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2615211-3
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  • 3
    Online Resource
    Online Resource
    The Emissions and Measures in Greenhouse Gases Management for Climate Change Mitigation in Developing Countries: A Case of Ho Chi Minh City, Vietnam
    EJournal Publishing ; 2022
    In:  International Journal of Environmental Science and Development Vol. 13, No. 6 ( 2022), p. 257-263
    Details
    In: International Journal of Environmental Science and Development, EJournal Publishing, Vol. 13, No. 6 ( 2022), p. 257-263
    Abstract: Vietnam will achieve net-zero greenhouse gases (GHG) emissions by 2050. Ho Chi Minh City (HCMC) has a considerable amount of GHG emissions (accounted for 20,68% of total GHG in Vietnam). The main GHG sources in HCMC are mainly due to the numerous private vehicles used and the increasing rate of factories. Therefore, to reduce the GHG of the city from these two sources, the bottom-up GHG detailed emission inventory (EI) for major sources must be carried out to determine the potential GHG emission sources. The objectives of this research are 1) to develop detailed GHG EI for HCMC and 2) to develop measures to reduce GHG for HCMC. It is the first bottom-up GHG emission inventory study that applied the EMISENS model to calculate the GHG emission from traffic and industrial sources. The total GHG emission of HCMC in 2019 was 58,272,149 tons CO2eq/year. The primary emission of GHG in HCMC is from on-road traffic (13,484,958 tons CO2eq/year) and the industry sector (17,612,942 tons CO2eq/year). Motorcycles contribute the highest (63%) GHG emission from on-road transportation, whereas the chemical industry contributes the highest (63%) GHG emission from industry sources, followed by the sectors of Paper Production (17.3%), Textile (16.1%), and Metal production (14.7%). The study also developed technical and management solutions to achieve the goal of GHG emission reduction for HCMC and contribute to the National target of net-zero GHG. The main management solutions are based on implementing a Carbon Reporting System for industries and buildings in the city.
    Type of Medium: Online Resource
    ISSN: 2010-0264
    URL: Article
    DOI: 10.18178/ijesd.2022.13.6.1402
    Language: Unknown
    Publisher: EJournal Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2715487-7
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  • 4
    Online Resource
    Online Resource
    Combination of data-driven models and interpolation technique to develop of PM10 map for Hanoi, Vietnam
    Springer Science and Business Media LLC ; 2020
    In:  Scientific Reports Vol. 10, No. 1 ( 2020-11-06)
    Details
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 10, No. 1 ( 2020-11-06)
    Abstract: The degradation of air quality is the most concerned issue of our society due to its harmful impacts on human health, especially in cities with rapid urbanization and population growth like Hanoi, the capital of Vietnam. This study aims at developing a new approach that combines data-driven models and interpolation technique to develop the PM 10 concentration maps from meteorological factors for the central area of Hanoi. Data-driven models that relate the PM 10 concentration with the meteorological factors at the air quality monitoring stations in the study area were developed using the Multiple Linear Regression (MLR) and Artificial Neural Network (ANN) algorithms. Models’ performance comparison showed that ANN models yielded better goodness-of-fit indices than MLR models at all stations in the study area with average coefficient of correlation ( r ) and Nash–Sutcliffe Efficiency Index ( NSE ) of 0.51 and 0.34 for the former, and 0.7 and 0.49 for the latter. These indices indicates that the ANN-based data-driven models outperformed the MLR-based models. Thus, the ANN-based models and the Inverse Distance Weighting (IDW) interpolation technique were then combined for mapping the monthly PM 10 concentration with a spatial resolution of 1 km from global meteorological data. With this combination, the PM 10 concentration maps account for both local PM 10 concentration and impacts of spatio-temporal variations of meteorological factors on the PM 10 concentration. This study provides a promising method to predict the PM concentration with a high spatio-temporal resolution from meteorological data.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    URL: Article
    DOI: 10.1038/s41598-020-75547-y
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2615211-3
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  • 5
    Online Resource
    Online Resource
    Air emission inventory and application TAPM-AERMOD models to study air quality from 34 ports in Ho Chi Minh City
    Viet Nam National University Ho Chi Minh City ; 2019
    In:  Science & Technology Development Journal - Science of The Earth & Environment Vol. 2, No. 2 ( 2019-05-29), p. 97-106
    Details
    In: Science & Technology Development Journal - Science of The Earth & Environment, Viet Nam National University Ho Chi Minh City, Vol. 2, No. 2 ( 2019-05-29), p. 97-106
    Abstract: The port system of Ho Chi Minh City including 34 ports, serves as the gateway to the South (including the South East and the Mekong Delta) in export and import activities. In which contribute a huge amount of pollutants to the atmosphere in Ho Chi Minh City. The objective of this study is to: (i) Calculating air emissions from ports system in Ho Chi Minh city using the SPDGIZ model which emits a large amount of air pollutants such as sulfur oxide (SOX), nitrogen oxide (NOX), fine dust (PM2.5, PM10), volatile organic compounds (VOC), carbon monoxide (CO) from large ships (Ocean going vessels - OGVs), towing ships (Harbor Crafts - HCs), cargo handling equipment (Cargo handling equipment - CHE) and other vehicles (Heavy trucks – HVs); (ii) Using dispersion model TAPM-AERMOD to assess the impact of port operations to air quality in surouding port area; (iii) Proposing abatement measures based on the results of simulation to reduce emissions/ air pollution levels. The results of emission inventory show that the total port emissions are largely NOX and SOX mainly from large ships (OGVs) and cargo handling equipment (CHE) due to the use of heavy oil and diesel which have high sulfur content. The results show that the time at which a mooring boat is the most time consuming (accounting for over 90% of total emissions from OGVs).
    Type of Medium: Online Resource
    ISSN: 2588-1078 , 2588-1078
    URL: Article
    DOI: 10.32508/stdjsee.v2i2.498
    Language: Unknown
    Publisher: Viet Nam National University Ho Chi Minh City
    Publication Date: 2019
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  • 6
    Online Resource
    Online Resource
    Apply MIKE 11 model to study impacts of climate change on water resources and develop adaptation plan in the Mekong Delta, Vietnam: a case of Can Tho city
    Springer Science and Business Media LLC ; 2022
    In:  Environmental Monitoring and Assessment Vol. 194, No. S2 ( 2022-09)
    Details
    In: Environmental Monitoring and Assessment, Springer Science and Business Media LLC, Vol. 194, No. S2 ( 2022-09)
    Type of Medium: Online Resource
    ISSN: 0167-6369 , 1573-2959
    URL: Article
    DOI: 10.1007/s10661-022-10185-7
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2012242-1
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  • 7
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    Online Resource
    Fast and Optimized Methodology to Generate Road Traffic Emission Inventories and Their Uncertainties
    Wiley ; 2014
    In:  CLEAN – Soil, Air, Water Vol. 42, No. 10 ( 2014-10), p. 1344-1350
    Details
    In: CLEAN – Soil, Air, Water, Wiley, Vol. 42, No. 10 ( 2014-10), p. 1344-1350
    Abstract: Road traffic emissions are one of the main sources of air pollution in urban areas and also main sources of uncertainties in air quality numerical models. Until now, the available models for generating road traffic emission always required a lot of money, manpower and time. This inhibits decisions to preserve air quality, especially in developing countries where road traffic emissions are changing very fast. In this research, we developed a new model designed to quickly produce road traffic emissions. This model, called EMISENS, combines the well‐known top‐down and bottom‐up approaches to force them to be coherent. A Monte Carlo methodology is included for computing uncertainties. This paper presents the EMISENS model and a demonstration of its capabilities through an application over Strasbourg, France. Same input data as collected for Circul'air model using bottom‐up approach which has been applied for many years to forecast and study air pollution by the Alsatian air quality agency, are used to evaluate the impact of several simplifications. These experiments give the possibility to review older methodologies and evaluate EMISENS. We show that same average fraction of mileage driven with a cold engine can be used for all the cells of the study domain and one emission factor could replace both cold and hot emission factors.
    Type of Medium: Online Resource
    ISSN: 1863-0650 , 1863-0669
    URL: Issue
    URL: Article
    DOI: 10.1002/clen.v42.10
    DOI: 10.1002/clen.201300261
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 2270984-8
    detail.hit.zdb_id: 2271097-8
    SSG: 13
    SSG: 14
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  • 8
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    Online Resource
    Photochemical modeling of PM 2.5 and design measures for PM 2.5 reduction: A case of Ho Chi Minh City, Vietnam
    IOP Publishing ; 2021
    In:  IOP Conference Series: Earth and Environmental Science Vol. 652, No. 1 ( 2021-02-01), p. 012025-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 652, No. 1 ( 2021-02-01), p. 012025-
    Abstract: Vietnam’s urban areas have faced with serious environmental pollution issues, including: water pollution, municipal waste and air pollution. Air in Ho Chi Minh city is polluted by PM 2.5 (particle matter with the diameter is less than 2.5 μm, so-called PM 2.5 ), O3, CO, NO2 and TSP which greatly affects public health. In 2017, Ho Chi Minh City (HCMC) had 8,640,000 inhabitants with a total of 7,339,552 motorcycles and 637,323 automobiles. There are about 2,500 factories, 2,061,957 household and 5,096 restaurants in the city. The aim of this study is to (i) conduct a detailed air pollution emission inventory for PM 2.5 ; (ii) stimulate PM 2.5 ’s dispersion in HCMC and (iii) propose mitigation measures for PM 2.5 in the city. Simulations of air pollution were conducted in HCMC by using TAPM-CTM system model. The model performance was evaluated using observed meteorological data at Tan Son Hoa station and air quality data at the Ho Chi Minh City University of Science. The result states that the sum of air pollutants from main sources of disposal in HCMC is 3,978.32 ton of PM 2.5 in 2017. Average maximum 1 hours, 24 hours and annual of PM 2.5 concentration in 2017 does not exceed QCVN 05:2013/BTNMT, but it is 1.3 to 2.3 times higher than the WHO’s guideline. Therefore, the PM 2.5 in HCMC impacts on public health of HCMC. To control and manage the air’s quality and minimize the generation of PM 2.5 in HCMC there are possible solutions such as the control of air pollutants from the main source, the creation of encouraging policy, the regulation of air pollutants in HCMC and the raising people’s awareness of environmental protection.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/652/1/012025
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2434538-6
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  • 9
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    Online Resource
    Modeling PM 10 in Ho Chi Minh City, Vietnam and evaluation of its impact on human health
    Springer Science and Business Media LLC ; 2017
    In:  Sustainable Environment Research Vol. 27, No. 2 ( 2017-03), p. 95-102
    Details
    In: Sustainable Environment Research, Springer Science and Business Media LLC, Vol. 27, No. 2 ( 2017-03), p. 95-102
    Type of Medium: Online Resource
    ISSN: 2468-2039
    URL: Article
    DOI: 10.1016/j.serj.2017.01.001
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2017
    detail.hit.zdb_id: 2641138-6
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  • 10
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    Online Resource
    AI-based air quality PM2.5 forecasting models for developing countries: A case study of Ho Chi Minh City, Vietnam
    Elsevier BV ; 2022
    In:  Urban Climate Vol. 46 ( 2022-12), p. 101315-
    Details
    In: Urban Climate, Elsevier BV, Vol. 46 ( 2022-12), p. 101315-
    Type of Medium: Online Resource
    ISSN: 2212-0955
    URL: Article
    DOI: 10.1016/j.uclim.2022.101315
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 2683732-8
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