Air pollution Ho Chi Minh city

Air pollution is one of the most concerns problems currently. The air quality of urban areas depends directly and indirectly on urban vegetation because trees are identified to have ability to remove air pollutants. In this study, I-tree Eco model was used to quantify the removal ability of air pollutants from trees at selected universities in Ho Chi Minh City.

13p viharry 15-12-2022 8 2   Download

Air pollution is getting worse in Viet Nam in recent years, particularly in big cities. The most important source of pollution are traffic and industrial activities. The paper "A Review on Current Status of Urban Air Pollution in Ho Chi Minh city and Ha Noi" reviews air pollution situation in Ho Chi Minh city and Ha Noi. We also recommend policies to tackle the problem: (i) upgrade the national air quality standard, (ii) install systematic and high-quality network of monitor stations, and (iii) remove means of transport that unmet emission regulations.

11p runordie2 06-06-2022 18 2   Download

The paper presents the research to simulate air quality from PM2.5 indicator determined by satellite data. The relationship between ground-based station data and Aerosol Optical Depth (AOD) imagery from Moderate Resolution Imaging Spectroradiometer (MODIS) was examined to establish a regression equation for mapping PM2.5 distribution in Ho Chi Minh city (HCMC).

4p viwinter2711 05-10-2021 8 1   Download

This study, which used correlation equations of 1 year for different years of the same period (same February of all years), showed the feasibility of applying remote sensing in simulating air pollution in the area.

8p nguaconbaynhay10 29-01-2021 16 1   Download

In air pollution studies at metropolis, as in Bangkok or Saigon, installation of new stations for monitoring dangerous pollution sources is costly. Using statistical models and analyzing data sets collected at good stations to predict air pollution levels at malfunctioning stations, therefore, are highly demanding. We study air pollution prediction by geo-statistical methods with a realistic dataset costly observed in Ho Chi Minh City.

23p trinhthamhodang9 10-12-2020 14 2   Download

Recently, climate change and its effects have been significantly influenced by human life. Human activities, mostly from urbanization, are the main contributors to the pollution of soil, water, and air, which has been proven by several observations and studies. However, it is necessary to raise awareness, by including support from society as a whole, in order to maximize the efficiency of environmental campaigns.

6p chauchaungayxua2 07-01-2020 20 0   Download

Continuous monitoring provides real-time data which is helpful for measuring air quality; however, these systems are often very expensive, especially for developing countries such as Vietnam. The use of low-cost sensors for monitoring air pollution is a new approach in Vietnam and this study assesses the utility of low-cost, light-scattering-based, particulate sensors for measuring PM2.5 concentrations in Ho Chi Minh City.

5p viminotaur2711 29-10-2019 28 0   Download

Ozone (O3) is a secondary pollutant formed in the atmosphere throughout a complex non-linear chemical reaction involving two classes of precursors: the reactive volatile organic compounds (VOCs) and the oxides of nitrogen (NOx) in the presence of sunlight. The rapid urbanization and industrialization in Vietnam have brought about high air pollutant emissions including the O3 precursors. Ground level O3 may already be high in large cities like Hanoi and Ho Chi Minh City. The O3 episode is very important for scene of view of photochemical smog in Hanoi.

7p dem_thanh 22-12-2012 40 4   Download

The estimation of emissions largely depends on the quality of emission factors used for calculation. The study on the estimation of emission factors is important for calculating the emission of air pollutants from road traffic in Ho Chi Minh City (HCMC). The result of this study is the selection of a suitable method and tracer for estimating emission factors of 15 volatile organic compounds (VOCs) from C2-C6 and NOx from road traffic in HCMC. The survey has been carried out in 3/2 Street, District 10, HCMC from January to March 2007. Three VOCs compounds with high average emission...

9p dem_thanh 22-12-2012 37 3   Download