scholarly journals Comparison of Study on Horizontal Distribution of Particulate (PM10) In Vehicular Emission in Ambient Air Along a Busy Road-Side In Atmospheric Pollution

2021 ◽  
Vol 11 (2) ◽  
pp. 25-36
Author(s):  
Prasanta Biswas et al., Prasanta Biswas et al., ◽  
Keyword(s):  
Atmospheric Pollution ◽  
Ambient Air ◽  
Horizontal Distribution ◽  
Vehicular Emission ◽  
Busy Road

scholarly journals A review on Assessment of Air Pollution due to Vehicular Emission in Traffic Area

2018 ◽  
Vol 8 (02) ◽  
Author(s):  
Aneri A. Desai
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Ambient Air ◽  
Pollution Monitoring ◽  
Motor Vehicles ◽  
Monitoring And Control ◽  
Ambient Air Quality ◽  
Vehicular Emission ◽  
Rapid Urbanization ◽  
Air Pollution Monitoring

In Indian metropolitan cities, the extensive growth of the motor vehicles has resulted in the deterioration of environmental quality and human health. The concentrations of pollutants at major traffic areas are exceeding the permissible limits. Public are facing severe respiratory diseases and other deadly cardio-vascular diseases In India. Immediate needs for vehicular air pollution monitoring and control strategies for urban cities are necessary. Vehicular emission is the main source of deteriorating the ambient air quality of major Indian cities due to rapid urbanization. Total vehicular population is increased to 15 Lacks as per recorded data of Regional Transport Organization (RTO) till 2014-2015. This study is focused on the assessment of major air pollution parameters responsible for the air pollution due to vehicular emission. The major air pollutants responsible for air pollution due to vehicular emissions are PM10, PM2.5, Sox, Nox, HC, CO2 and CO and Other meterological parameters like Ambient temperature, Humidity, Wind direction and Wind Speed. Sampling and analysis of parameters is carried out according to National Ambient Air Quality Standards Guidelines (NAAQS) (2009) and IS 5128.

Introducing Environmental Technologies in Industrial Fuel Combustion Processes

2018 ◽  
Vol 20 (1) ◽  
pp. 103-110
Author(s):  
Marcel Ruscă ◽  
Tudor Andrei Rusu
Keyword(s):  
Environmental Pollution ◽  
Atmospheric Pollution ◽  
Urban Areas ◽  
Fossil Fuels ◽  
Ambient Air ◽  
Pollutant Emissions ◽  
Main Concern ◽  
Gaseous Emissions ◽  
Pollution Transport ◽  
Healthy Environment

Abstract Atmosphere pollution is a complex and worldwide process carried out for a long period of time. Greenhouse effect, global warming and acid rain are only some examples generated by atmospheric pollution. Experts discovered a strong motivation on finding solutions for reducing pollutant emissions caused by atmospheric pollution. Transport activities and fossil fuels combustion are the main concern on environmental pollution, more than that, they are used in industrial processes, being the main cause of environmental pollution. We have to understand that global pollution is causing the main effect on economic and social challenges of each country, a fact that will be hard to change in the future, and every small step will help for a better and healthy environment. Sebes and Zlanta city, from Alba regions, were the areas that draw our attention for studying the level of atmospheric pollution for a period of 5 years. We made periodic determinations on emission level for SO2, CO, CO2, NOx and writing down periodic reports. The measurements were made in industrial areas for Zlatna and Sebes city and in urban areas in Alba-Iulia city. Traffic environment was the main issue discovered after this research. The concerning was on industrial pollution for the cities of Sebes and Zlatna. The final part is offering solutions on reducing gaseous emissions in particular for economic operators and for the industries as well. This research is particularly aimed at emissions reduction like SO2, CO, CO2 and also for volatile organic compounds. Directive 2008/50/CE concerning ambient air quality were the main sources where we started on our research targeting on reducing atmospheric pollution.

scholarly journals Elemental and Organic Carbon, Ionic and Non ionic components in TSP and PM Particulates of Kathmandu 10 Valley, Nepal

2016 ◽  
Vol 11 (1) ◽  
pp. 79-87 ◽  
Author(s):  
R. K. Sharma ◽  
B. K. Bhattarai ◽  
B. K. Sapkota ◽  
M. B. Gewali ◽  
B. Kjeldstad ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Elemental Carbon ◽  
Ambient Air ◽  
Particulate Matters ◽  
Carbonaceous Aerosols ◽  
Vehicular Emission ◽  
Wind Pattern ◽  
X Ray ◽  
Air Sampler ◽  
Ionic Components

Particulate matters of different aerodynamic diameters; TSP, PM10 for 24 hours were collected on quartz 47mm filter paper using Frm OMNITM Ambient Air Sampler from December 2010 to March 2011 and analyzed. The analysis of these sample collected were carried out by gravimetric, X-ray fluorescent and ion-chromatographic methods. TSP value for the observed period lies between 31.3-84.08 μg/m3 while PM10 ranges from 39.5-104.2 μg/m3. Daily carbonaceous aerosols concentration in TSP varied widely between (5.3-18.2 μg/m3) for Organic carbon (OC) and 5.6-10.2 μg/m3 for Elemental carbon (EC). Similarly in PM10 the range was from 4.8-14.1 and 3.9-10.1 μg/m3 respectively. The OC/EC ratio in the particulate matters ranges from 0.9-1.4. OC/EC ratio within 1.1 infers vehicular emission as a major source of carbonaceous aerosols in the valley. Further, among the nonionic components analyzed (K, Ca, Fe, Ti and Pb ) showed highest concentration of Fe as 2.5 μg/m3 while lowest of Pb as 0.001 μg/m3.The ionic components analyzed shows presence of SO4 2- and NH4 + in most of the samples while Cl-, NO3- and Ca2+ are only in few samples. Few samples of soil analyzed shows maximum of 32 elements. Variation in the concentration of ionic nonionic and carbonaceous aerosols is not related with wind pattern and its velocity.Journal of the Institute of Engineering, 2015, 11(1): 79-87

scholarly journals Ambient Air Quality, Pollutant Behavior, and Distribution Pattern in Rabigh City Using an Air Dispersion Model

2021 ◽  
Vol 22 (1) ◽  
pp. 1-12
Author(s):  
Aljahdali Mohammed Othman
Keyword(s):  
Air Quality ◽  
Atmospheric Pollution ◽  
Industrial Development ◽  
Dispersion Model ◽  
Heavy Traffic ◽  
Winter Season ◽  
Ambient Air ◽  
Meteorological Conditions ◽  
Atmospheric Pollutants ◽  
Anthropogenic Sources

The rise in industrial development and modern technology is one of the major causes of atmospheric pollution, which negatively affects human health. In this study, meteorological conditions and atmospheric pollution dispersion in Rabigh city and its catchments were analyzed using measured data and an air quality dispersion model. The Hybrid Single-Particle Lagrangian Integrated Trajectory model was used to simulate the dispersion of atmospheric pollutants. A dataset from 2018 was analyzed to clarify the seasonal distributions of atmospheric pollutant concentrations in Rabigh and other areas (Thuwal and Khulais). A significant variation in atmospheric pollutants was recorded across the seasons, which may be caused by changes in meteorological conditions. Variations in other anthropogenic sources related to high population density or heavy traffic in the nearby road may also be involved in these fluctuations. Predictions indicated that pollutants would impact the Thuwal area (>50 μg m−3) and Khulais (>35 μg m−3) during the winter season and affect Thuwal (>20 μg m−3) and Rabigh (>20 μg m−3) during the fall season. The concentrations of pollutants were mostly negatively correlated with wind speed, except for carbon monoxide. We established variations in the seasonal concentration of pollutants and the effect of meteorological conditions on atmospheric pollutants for the year 2018 in the study area. Policymakers and stakeholders must provide solutions to mitigate the environmental effect of atmospheric pollution in Rabigh city, Thuwal, and Khulais for the health of inhabitants.

scholarly journals Ambient Air Pollutions along a Major South-Western Nigerian Road

2021 ◽  
Vol 2 (3) ◽  
pp. 15-22
Author(s):  
Gbadebo Omoniyi Adeniyi ◽  
Olusegun Ismail Lawal ◽  
Samuel Okemute Egwenu ◽  
Jacob Ademola Sonibare ◽  
Funso Alaba Akeredolu
Keyword(s):  
Air Pollution ◽  
Air Pollutants ◽  
Ambient Air ◽  
Dry Season ◽  
Traffic Density ◽  
Wet Season ◽  
Vehicular Emission ◽  
Air Pollutions ◽  
Dry Seasons ◽  
Wet And Dry Seasons

This study investigated the air pollutants in the ambient air of a typical intercity highway in Nigeria. This was to assess the effect of vehicular emission on air quality along the highway. The results showed that NOX concentrations ranged from 9.9±3.2 to 33.8±3.3 µg/m3 during the wet season and 19.0±1.2 to 35.4±2.3 µg/m3 during the dry season. Sulfur dioxide measured along this highway ranged from 49.7±38.1 to 219±18.1 µg/m3 during the wet season while dry season concentration ranged from 89.1±20.9 to 225.4±57.9 µg/m3. The TSP during the wet season ranged from 54.4±25.6 to 126.8±25.6 µg/m3. These values were below the limits of 250 mg/m3 set by FMEnv., and 150-230 mg/m3 by WHO. However, the TSP measured during the dry season ranged from 85.9±44.6 to 277.8±213.5 µg/m3. The average correlations between NOX, SO2, and TSP measured during wet and dry seasons and the traffic density were 0.7, 0.6 and 0.7, respectively. Air pollution along the Nigerian highway is highly linked to vehicular activities.

scholarly journals HYGIENIC ASSESSMENT OF AMBIENT AIR AND NON-CARCINOGENIC RISK FOR PUBLIC HEALTH LIVING ON BORDER TERRITORIES

2019 ◽  
pp. 29-35
Author(s):  
V.M. Boev ◽  
E.A. Kryazheva ◽  
L.Kh. Kudusova ◽  
D.A. Kryazhev ◽  
S.V. Perepelkin
Keyword(s):  
Public Health ◽  
Air Pollution ◽  
Atmospheric Pollution ◽  
Ambient Air ◽  
Carcinogenic Risk ◽  
Ambient Air Pollution ◽  
Oil Refining ◽  
Malignant Neoplasms ◽  
Qualitative Composition ◽  
Orenburg Region

The purpose of the research study was the identification and quantitative assessment of ambient air pollution with risk assessment to public health on the territories of the Orenburg region, bordering the Republic of Kazakhstan. A hygienic assessment of thirteen border municipalities of the Orenburg region was carried out in the paper. We conducted an ambient air analysis for 23 substances, which are under long-term dynamic observation and a non-carcinogenic risk to public health was calculated. It was established that the Western and Central parts of the border territories differing in the qualitative composition of pollutants have the highest level of anthropogenic air pollution. At the same time, the qualitative composition of pollutants in the Western part of the border territory is mainly represented by substances that originate from gas and oil refining facilities. Priority pollutants in the Central part of the border territory are substances that originate from non-ferrous and ferrous metallurgy facilities. Climatic data analysis in the study territory has shown that conditions for the transboundary transfer of atmospheric pollution, both from Kazakhstan and from the Russian Federation can be created with certain meteorological parameters. Non-carcinogenic health risk analysis showed the probability of adverse effects development on organs and systems, as well as the probability of malignant neoplasms occurrence in the population living on the border territories. The study justifies and confirms the need to develop a system for monitoring and to assess the probability for transboundary transport of atmospheric pollution, as well as practical recommendations and preventive measures to reduce anthropogenic load.

scholarly journals Dust opacities inside the dust devil column in the Taklimakan Desert

2017 ◽  
Vol 10 (1) ◽  
pp. 273-279 ◽  
Author(s):  
Zhaopeng Luan ◽  
Yongxiang Han ◽  
Tianliang Zhao ◽  
Feng Liu ◽  
Chong Liu ◽  
...  
Keyword(s):  
Low Cost ◽  
Three Dimensional ◽  
Ambient Air ◽  
Horizontal Distribution ◽  
Dimensional Structure ◽  
Taklimakan Desert ◽  
Dust Devils ◽  
Dust Aerosols ◽  
The Taklimakan Desert ◽  
Optical Structure

Abstract. The distribution of dust aerosols in dust devils (DDs) is quantitatively characterized here based on a field observation. We applied the digital optical method (DOM) with digital still cameras to quantify the opacity of the DDs in the Taklimakan Desert, China. This study presents the following unique and important results: (1) the distinct horizontal distributions of opacity proved the existence of DDs' eye, similarly to the eye of tropical cyclone; (2) the opacity of the DDs decreases with increasing height; however, the dust aerosols do appear to settle out, and the relatively calm eye leads to a minimum in dust opacity at the eye; (3) the horizontal distribution of opacity is quasi-symmetric with a bimodal across the eye of the DDs, which could be resulted from the ambient air conditions; and (4) a new method is developed for characterizing the three-dimensional structure of DDs based on the observed two-dimensional opacity provided by DOM. This study not only proposes a highly reliable, low-cost and efficient methodology to capture the optical structure of DDs, but it could also provide the information on estimation of dust emissions driven by DDs.

Development of a Rapid Survey Method of Sampling and Analysis for Asbestos in Ambient Air

1972 ◽  
Vol 30 ◽  
pp. 630-631 ◽  
Author(s):  
R. E. Heffelfinger ◽  
C. W. Melton ◽  
D. L. Kiefer ◽  
W. M. Henry ◽  
R. J. Thompson
Keyword(s):  
Neutron Activation ◽  
Ambient Air ◽  
Survey Method ◽  
Potential Hazard ◽  
Transmission Microscopy ◽  
Comparative Analyses ◽  
Asbestos Fibers ◽  
Controlled Conditions ◽  
Unequivocal Identification ◽  
Identification And Quantification

A methodology has been developed and demonstrated which is capable of determining total amounts of asbestos fibers and fibrils in air ranging from as low as fractional nanograms per cubic meter (ng/m3) of air to several micrograms/m3. The method involves the collection of samples on an absolute filter and provides an unequivocal identification and quantification of the total asbestos contents including fibrils in the collected samples.The developed method depends on the trituration under controlled conditions to reduce the fibers to fibrils, separation of the asbestos fibrils from other collected air particulates (beneficiation), and the use of transmission microscopy for identification and quantification. Its validity has been tested by comparative analyses by neutron activation techniques. It can supply the data needed to set emissions criteria and to serve as a basis for assessing the potential hazard for asbestos pollution to the populace.

Sign in / Sign up

Export Citation Format

Share Document