scholarly journals Enhanced H-abstraction contribution for oxidation of xylenes via mineral particles: Implications for particulate matter formation and human health

2020 ◽  
Vol 186 ◽  
pp. 109568
Author(s):  
Jiangyao Chen ◽  
Jiajing Yi ◽  
Yuemeng Ji ◽  
Baocong Zhao ◽  
Yongpeng Ji ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Human Health ◽  
Mineral Particles ◽  
Particulate Matter Formation

scholarly journals Geochemical and Mineralogical Characteristics of Airborne Particulate Matter in Relation to Human Health Risk

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 866 ◽  
Author(s):  
Marzena Rachwał ◽  
Małgorzata Wawer ◽  
Mariola Jabłońska ◽  
Wioletta Rogula-Kozłowska ◽  
Patrycja Rogula-Kopiec
Keyword(s):  
Magnetic Susceptibility ◽  
Particulate Matter ◽  
Human Health ◽  
Magnetic Particles ◽  
Rank Order ◽  
Human Health Risk ◽  
Airborne Particulate Matter ◽  
Ambient Air ◽  
Average Concentration ◽  
Health Indices

The main objective of this research was the determination of the geochemical and mineralogical properties of particulate matter: TSP (total suspended particles) and, especially PM1 (particles with aerodynamic diameter not greater than 1 µm) suspended in the air of a selected urban area in southern Poland. Identification of the emission sources of metals and metalloids bound in TSP and PM1 as well as the assessment of potential risk of urban ambient air to human health using hazard indices was an additional aim of this investigation. The daily TSP and PM1 quartz fiber filters collected during heating season were subjected to mass magnetic susceptibility (χ) measurements, SEM (Scanning Electron Microscopy) observations and geochemical analyses. Obtained results revealed that the concentration of TSP and PM1 well correlated with their mass-specific magnetic susceptibility. The good relationship between the PM concentration and χ suggests that magnetic susceptibility measurements can be a good proxy of low-level atmospheric dust pollution. The rank order of potentially toxic elements (PTE) based on average concentration was Ba > Zn > Al > Fe > Pb > Mn > Ti > Cu > Cr > Ni >As > Cd > V > Tl, both for TSP and PM1. PM1/TSP ratios for PTE concentrations and χ were around or slightly above unity, which indicated that PM1 was the main carrier of PTE (with the exception of cadmium, copper and lead) and technogenic magnetic particles. The non-carcinogenic and carcinogenic risks were confirmed by very high values of human health indices.

scholarly journals Special Issue Sources and Composition of Ambient Particulate Matter

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 462
Author(s):  
Manousos-Ioannis Manousakas
Keyword(s):  
Particulate Matter ◽  
Adverse Effects ◽  
Human Health ◽  
Ambient Particulate Matter ◽  
Special Issue

Research related to ambient particulate matter (PM) remains very relative today due to the adverse effects PM have on human health. [...]

Health impacts and costs of Fine Particulate Matter formation from road transport in Bangkok Metropolitan Region

2021 ◽  
pp. 101191
Author(s):  
Sinthunon Chavanaves ◽  
Peter Fantke ◽  
Wongpun Limpaseni ◽  
Witsanu Attavanich ◽  
Sirima Panyametheekul ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Road Transport ◽  
Metropolitan Region ◽  
Health Impacts ◽  
Fine Particulate ◽  
Particulate Matter Formation

Char characteristics and particulate matter formation during Chinese bituminous coal combustion

2007 ◽  
Vol 31 (2) ◽  
pp. 1947-1954 ◽  
Author(s):  
Yun Yu ◽  
Minghou Xu ◽  
Hong Yao ◽  
Dunxi Yu ◽  
Yu Qiao ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Particulate Matter Formation

scholarly journals Imperiling on Urban Environment by Air Pollution and its Impact on Human Health

2019 ◽  
Vol 62 (2) ◽  
pp. 104-112
Author(s):  
Durdana Rais Hashmi ◽  
Akhtar Shareef ◽  
Talha Rehan Qadri ◽  
Muhammad Azam
Keyword(s):  
Particulate Matter ◽  
Human Health ◽  
Trace Gases ◽  
Quality Standard ◽  
Traffic Density ◽  
Pollution Level ◽  
Residential Areas ◽  
Industrial Emissions ◽  
Industrial Areas ◽  
High Traffic Density

Present study was carried out to analyze the concentration of the pollutants due to air born particulate matter (PM10) and infectious trace gases and their effects on human health at ten different locations along busy intersections in the commercial, residential and industrial areas of Karachi city. At each selected location, the study was carried out to determine the level of particulate matter and trace gases for a period of 8 h twice in a month during the year 2015. Samples were collected at ten selected locations i.e. Karimabad(C-1), Tibet Centre(C-2), and Liaquatabad(C-3) in commercial areas; PIB Colony(R-1), Nazimabad(R-2) and Gulshan-e-Iqbal(R-3) in residential areas; Siemens G. Belt(I-E1), Naurus G Belt (I-E2), Singer Chowrangi(I-W3) and Chamra Chowrangi(I-W4) in industrial areas of the city. Resultsreceived from different air quality categories were calculated according to National Environmental Quality Standard (NEQS) at selected locations, as in commercial areas showing poor pollution level for trace gases and PM10 due to high traffic density. In Residential areas PIB Colony (R-1) and Gulshan-e-Iqbal (R-3), found under good category with respect to the trace gases and moderate pollution level for the PM10 pollution, having low traffic density whereas Nazimabad(R-2) presents moderate category for trace gases and unhealthy category for PM10 pollution with high traffic density. In industrial areas Singer Chowrangi (I-W3) and Chamra Chowrangi(I-W4) found under moderate pollution level with moderate traffic density, whereas, Siemens G. Belt(I-E1) and Naurus G. Belt(I-E2) locations are represented by moderate pollution values for trace gases and found under poor pollution level for PM10 pollution, may be due to industrial emissions and heavy vehicular emission. Level of PM10 and trace gases at all the selected sites excluding residential areas, exceeds the permissible limits as specified by NEQS.

Experimental investigation of particle number reduction in turbocharged GDI engines

Trudy NAMI ◽  
2022 ◽  
pp. 31-40
Author(s):  
A. V. Gontyurev ◽  
N. S. Zuev
Keyword(s):  
Particulate Matter ◽  
Fuel Injection ◽  
Combustion Process ◽  
Gasoline Direct Injection ◽  
Practical Significance ◽  
Injection Timing ◽  
Catalytic Converters ◽  
Environmental Standards ◽  
The Future ◽  
Particulate Matter Formation

Introduction (problem statement and relevance). Now it is difficult to imagine the automotive industry without constant improvement of the power plant. This is due to the constant tightening of environmental standards, so in environmental standards Euro 6 there is a limit of the countable concentration of particulate matters. To meet the Euro 6 environmental standard, vehicle manufacturers use catalytic converters, and gasoline particle filters (GPF). These methods of reducing the emissions of the exhaust gas are quite common, but they also have a limitation on the service life. The use of only catalytic converters and GPF may not be sufficient to meet the Euro 7 standards in the future. So, there is a need to reduce emissions with exhaust gases by improving the combustion process.The purpose of work is to investigate the combustion process of a turbocharged gasoline direct injection engine to reduce particulate matter by increasing the injection pressure and optimizing the injection timing. Methodology and research methods. The studies are of an experimental nature, the reliability of the data is confirmed by the use of modern measuring equipment and post processing of the measured data. Scientific novelty and results. The fuel injection parameters, which have a significant influence on the particulate matter formation and oxidation are defined.Practical significance. The recommendations to reduce particulate matter formation and to meet the requirements of the future Euro standards are given.

Airborne Particulate Matter

2017 ◽  
pp. 202-223 ◽  
Author(s):  
Bhawna Dubey ◽  
Asim Kumar Pal ◽  
Gurdeep Singh
Keyword(s):  
Particulate Matter ◽  
Human Health ◽  
Global Climate Change ◽  
Global Climate ◽  
Airborne Particulate Matter ◽  
Airborne Particulate ◽  
Urban Centers ◽  
Population Number ◽  
Biological Entities ◽  
Toxic Trace Metals

Airborne particulate matter is considered to be most challenging environmental issues in the world today due to its impact on various atmospheric processes like regional and global climate change, ecosystem, agriculture and most importantly on human health in recent times. Analysis reveals that particulate matter contains various inorganic and organic compounds and biological entities and their secretions and toxic trace metals. The main regions affected are urban centers due to an increasing population, number of diverse industries, fossil fuel driven vehicles and various construction activities. The present chapter deals with the scenario of particulate matter, their sources of generation, size and their impact on human health and environment mainly in urban dwellings.

Airborne Particulate Matter

2018 ◽  
pp. 447-468 ◽  
Author(s):  
Bhawna Dubey ◽  
Asim Kumar Pal ◽  
Gurdeep Singh
Keyword(s):  
Particulate Matter ◽  
Human Health ◽  
Global Climate Change ◽  
Global Climate ◽  
Airborne Particulate Matter ◽  
Airborne Particulate ◽  
Urban Centers ◽  
Population Number ◽  
Biological Entities ◽  
Toxic Trace Metals

Airborne particulate matter is considered to be most challenging environmental issues in the world today due to its impact on various atmospheric processes like regional and global climate change, ecosystem, agriculture and most importantly on human health in recent times. Analysis reveals that particulate matter contains various inorganic and organic compounds and biological entities and their secretions and toxic trace metals. The main regions affected are urban centers due to an increasing population, number of diverse industries, fossil fuel driven vehicles and various construction activities. The present chapter deals with the scenario of particulate matter, their sources of generation, size and their impact on human health and environment mainly in urban dwellings.

Sign in / Sign up

Export Citation Format

Share Document