INFLUENCE OF THE ANTHROPOGENIC SOURCES ON THE AIR QUALITY IN LJUBLJANA REGION

The air quality sampling and analysis of airborne particulate matter (APM) in Ljubljana region has been started, recently. The sampler is positioned at around 10 km from the city limits in the direction of the prevailing winds. The aerosol samples were measured by a standard in-vacuum PIXE arrangement. The measured concentrations show the influences of the industry and traffic at the city.

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Identification of Genotoxic Compounds in the Airborne Particulate Matter Endowed by Small Aerodynamic Diameter in the City of Catania (Italy)

Annali di Chimica ◽

10.1002/adic.200690055 ◽

2006 ◽

Vol 96 (9-10) ◽

pp. 537-542 ◽

Cited By ~ 2

Author(s):

Salvatore Motta ◽

Vito Librando ◽

Zelica Minniti ◽

Concetta Federico ◽

Salvatore Saccone

Keyword(s):

Particulate Matter ◽

Airborne Particulate Matter ◽

Aerodynamic Diameter ◽

Airborne Particulate ◽

Genotoxic Compounds ◽

The City

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Source apportionment of airborne particulate matter in Southeast Texas using a source-oriented 3D air quality model

Atmospheric Environment ◽

10.1016/j.atmosenv.2010.06.004 ◽

2010 ◽

Vol 44 (29) ◽

pp. 3547-3557 ◽

Cited By ~ 30

Author(s):

Hongliang Zhang ◽

Qi Ying

Keyword(s):

Particulate Matter ◽

Air Quality ◽

Source Apportionment ◽

Airborne Particulate Matter ◽

Airborne Particulate ◽

Air Quality Model ◽

Quality Model ◽

Southeast Texas

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Spatial Extent and Distribution of Ambient Airborne Particulate Matter (PM2.5) in Selected Land Use Sites in Nairobi, Kenya

Journal of Environmental and Public Health ◽

10.1155/2021/4258816 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Caroline Kiai ◽

Christopher Kanali ◽

Joseph Sang ◽

Michael Gatari

Keyword(s):

Land Use ◽

Air Pollution ◽

Particulate Matter ◽

Air Quality ◽

Low Cost ◽

Airborne Particulate Matter ◽

Spatial Extent ◽

Airborne Particulate ◽

Concentration Levels ◽

Pm2.5 Concentration

Air pollution is one of the most important environmental and public health concerns worldwide. Urban air pollution has been increasing since the industrial revolution due to rapid industrialization, mushrooming of cities, and greater dependence on fossil fuels in urban centers. Particulate matter (PM) is considered to be one of the main aerosol pollutants that causes a significant adverse impact on human health. Low-cost air quality sensors have attracted attention recently to curb the lack of air quality data which is essential in assessing the health impacts of air pollutants and evaluating land use policies. This is mainly due to their lower cost in comparison to the conventional methods. The aim of this study was to assess the spatial extent and distribution of ambient airborne particulate matter with an aerodynamic diameter less than 2.5 μm (PM2.5) in Nairobi City County. Seven sites were selected for monitoring based on the land use type: high- and low-density residential, industrial, agricultural, commercial, road transport, and forest reserve areas. Calibrated low-cost sensors and cyclone samplers were used to monitor PM2.5 concentration levels and gravimetric measurements for elemental composition of PM2.5, respectively. The sensor percentage accuracy for calibration ranged from 81.47% to 98.60%. The highest 24-hour average concentration of PM2.5 was observed in Viwandani, an industrial area (111.87 μg/m³), and the lowest concentration at Karura (21.25 μg/m³), a forested area. The results showed a daily variation in PM2.5 concentration levels with the peaks occurring in the morning and the evening due to variation in anthropogenic activities and the depth of the atmospheric boundary layer. Therefore, the study suggests that residents in different selected land use sites are exposed to varying levels of PM2.5 pollution on a regular basis, hence increasing the potential of causing long-term health effects.

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Determination of Polycyclic Aromatic Hydrocarbons in Airborne Particulate Matter by Gas ChromatographyTriple Quadrupole Tandem Mass Spectrometry

Journal of AOAC International ◽

10.1093/jaoac/93.1.284 ◽

2010 ◽

Vol 93 (1) ◽

pp. 284-294 ◽

Cited By ~ 10

Author(s):

Antonia Garrido Frenich ◽

Rosa Martínez Ocaña ◽

José L Martínez Vidal

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Particulate Matter ◽

Aromatic Hydrocarbons ◽

Treatment Time ◽

Airborne Particulate Matter ◽

Airborne Particulate ◽

Srm 1649A ◽

Polycyclic Aromatic ◽

The City

Abstract An accurate and sensitive method for the identification and the quantification of 24 polycyclic aromatic hydrocarbons (PAHs) in airborne particulate matter has been developed and validated using GC/MS/MS with a triple quadrupole analyzer. Ultrasonic extraction (USE) and pressurized liquid extraction (PLE) were evaluated. PLE was selected because it provided better recoveries and reduced treatment time and use of solvents compared to USE. Cleanup of PLE extracts was not necessary. The accuracy of the optimized method was tested using a standard reference material of urban dust (SRM 1649a). PAH recoveries were between 70 and 99 (except for naphthalene, which was lower than 20) with RSDs ranging from 2.6 to 15.3. Linearity in the range 5500 ng/mL provided R2 values higher than 0.99 for all compounds. LODs for PAHs ranged from 0.001 to 0.435 ng/mL and LOQs ranged from 0.003 to 0.757 ng/mL. The proposed method was applied to the analysis of real samples collected in the city of Almera, Spain, where some PAHs were found at levels lower than the legislated limit.

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