Investigation of emissions from passenger flights Denizli Çardak Airport, Türkiye
In this study, it is tried to calculate pollutant emissions occurring in 2022 during the LTO cycles of Denizli Çardak Airport in Turkey. These calculations are based on the information obtained from ICAO Engine Emission Data Bank and flight information published by the General Directorate of State Airports Authority (GDSAA). As a result of the data obtained, 74.64 ton/year pollutants (NOx-37.148 t/y, CO-35. 398 t/y and HC-2.094 t/y) were calculated for 2022 at Denizli Çardak Airport. Of all emissions, NOx accounted for 50%, CO 47% and HC 3%. In the LTO cycle, the most fuel is burned in taxi cycle and pollutant emissions ...
Source: Air Quality, Atmosphere and Health - April 24, 2024 Category: Environmental Health Source Type: research
Atmospheric deposition studies of microplastics in Central Germany
AbstractEmission of microplastics (MP) to the atmosphere, airborne transport, and subsequent deposition are now recognized. However, the temporal and spatial resolution of data on MP pollution and knowledge of their atmospheric behaviour and fate is still very limited. Hence, we investigated MP wet and dry deposition in Central Germany and examined the role of weather conditions on MP contamination levels. Monthly samples of dry and wet deposition were taken over an eight-month period (05/2019-12/2019) and analysed by micro-Fourier-Transform Infrared spectroscopy ( µFTIR) down to 11 μm particle size and one dry depositi...
Source: Air Quality, Atmosphere and Health - April 24, 2024 Category: Environmental Health Source Type: research
Comparing machine learning and inverse modeling approaches for the source term estimation
AbstractMathematical models serve as crucial tools for quantitatively assessing the environmental and population impact resulting from the release of hazardous substances. Often, precise source parameters remain elusive, leading to a reliance on rudimentary assumptions. This challenge is particularly pronounced in scenarios involving releases that are accidental or deliberate acts of terrorism. A conventional method for estimating the source term involves the construction of backward plumes originating from various sensors measuring tracer concentrations. The area displaying the highest overlap of these backward plumes typ...
Source: Air Quality, Atmosphere and Health - April 24, 2024 Category: Environmental Health Source Type: research
Reduction of 2,6-dimethoxyphenol odor emitted from Ribbed Smoked Sheet by Co(II)-salen complex
AbstractGas chromatography –mass spectroscopy (GC–MS) was used to characterize ribbed smoked sheet No. 3 (RSS 3) and latex to confirm the presence of 2,6-dimethoxyphenol odor. The selected ion monitoring (SIM) chromatogram of RSS 3 exhibited a 2,6-dimethoxyphenol peak atm/z 154, while the latex chromatogram did not show any peak. Using a syntheticcis-1,4-polyisoprene rubber and 2,6-dimethoxyphenol mixture as reference, the GC –MS analysis indicated that RSS 3 emits 4.0 mg/kg of 2,6-dimethoxyphenol. When added to the SIM chromatogram, the cobalt (II)-complex of salicylaldehyde ethylenediamine Schiff base ligand (Co(I...
Source: Air Quality, Atmosphere and Health - April 23, 2024 Category: Environmental Health Source Type: research
The association between short-term ozone exposure and fasting blood glucose levels in non-diabetic adults was more obvious in rural residents: the evidence from a typical “urban–rural dual structure” province in southwestern China
AbstractAmbient ozone (O3) is associated with diabetes (DM), but the data on the association between O3 and fasting blood glucose (FBG) in non-diabetic adults is relatively rare, especially the evidence of urban –rural difference in such association is still lacking. Our research aimed to investigate the potential effects of short-term O3 exposure on FBG levels. We carried out a cross-sectional analysis of a representative sample of 5329 adults from the Guizhou Population Health Cohort Study and the association between O3 and FBG levels was determined. In rural populations, subgroup analyses were performed by gender, age...
Source: Air Quality, Atmosphere and Health - April 23, 2024 Category: Environmental Health Source Type: research
Impact assessment of IMO ’s sulfur content limits: a case study at latin America’s largest grain port
This study assesses the environmental benefits of the sulfur content limit values for heavy fuel oil set by the IMO on sulfur emissions, trace element concentrations, and ship related PM2.5 pollution at Paranagu á, the largest grain port in Latin America. X-ray Fluorescence analysis revealed that the concentrations of vanadium (V) and nickel (Ni) in PM2.5 (i.e., finer particulate matter), which are prevalent trace elements in ship exhaust emissions, decreased significantly from 25.4 ng m− 3 and 5.8 ng m− 3 in 2019 to 3.5 ng m− 3 and 2.2 ng m− 3 in 2020, respectively. The V/Ni ratio also changed from 4.3 in...
Source: Air Quality, Atmosphere and Health - April 22, 2024 Category: Environmental Health Source Type: research
Setting up a CFD model to evaluate the impact of green infrastructures on local air quality
AbstractGreen infrastructures have been pointed out as innovative solutions to deal with current and future challenges related to air pollution and climate change. Although the potential of green infrastructures, such as green walls and green roofs, to mitigate air pollution has been documented, evidence at a local scale is still limited. This work aims to increase knowledge about the potentialities of green infrastructures in improving local air quality, focusing on particulate matter, nitrogen dioxide and ozone pollutants, and by using a local-scale computational fluid dynamics model. The ENVI-met model was applied to a ...
Source: Air Quality, Atmosphere and Health - April 20, 2024 Category: Environmental Health Source Type: research
Does urban particulate matter hinder COVID-19 transmission rate?
AbstractThe COVID-19 pandemic has had a significant impact on global health, with millions of people affected by the disease. Recent studies have shown that environmental factors such as air quality, temperature, and humidity can impact the survival and transmission of the virus, leading to differences in the rate of spread and severity of the disease in different regions. In this global cross-sectional study, we analyzed the relationship between environmental factors and the transmission and survival of the virus in 167 cities distributed all over the world. We used a dataset containing daily COVID-19 data for 167 cities ...
Source: Air Quality, Atmosphere and Health - April 18, 2024 Category: Environmental Health Source Type: research
Spatial model for daily air quality high resolution estimation
AbstractIn air quality modeling, fine-scale daily mapping is generally calculated from dispersion models involving multiple parameters linked in particular to emissions, which require regular updating and a long computation time. The aim of this work is to provide a simpler model, easily adaptable to other regions and capable of estimating nitrogen dioxide concentrations to a good approximation. To this end, we examine the relationship between daily and annual nitrogen dioxide values. We find that this relationship depends on the range of daily values. Then we provide a statistical model capable of estimating daily concent...
Source: Air Quality, Atmosphere and Health - April 18, 2024 Category: Environmental Health Source Type: research
Ozone variability, its formation potential and crops losses in the himalayan foothills
AbstractSurface ozone observations in Doon Valley (Dehradun: 30.3oN, 78.0oE, 700 m), which acts as a bridge between the Himalayas and the Indo-Gangetic Plain, showed daytime higher values, suggesting a typical urban behaviour in proximity of the Himalayas. Ozone exhibited a maximum in spring (49.2 ± 24.8 ppbv in May) with an hourly average of more than 110 ppbv, followed by a secondary maximum in autumn and the lowest level occurring in the summer-monsoon (~ 13 ppbv in July-August). Ozone levels exceeded the 8-hour National Air Quality Standard limit (50 ppbv) throughout the year, except in July-September. The obs...
Source: Air Quality, Atmosphere and Health - April 16, 2024 Category: Environmental Health Source Type: research
The regulation effect of urban green space on air particulate matter concentration under different matrices in Xi'an city
AbstractUrban green space can effectively alleviate air pollution, in which vegetation structure plays an important role. However, these green spaces with varying vegetation structures exist in different environmental backgrounds of the city. By analyzing the influence of the different environmental backgrounds on the dust retention effect of green spaces with varying vegetation structures, green spaces can be truly utilized as a solution in alleviating air pollution. Therefore, according to the typical characteristics of landscape patterns and different coverage ratios of green areas in Xi ’an city, China, the matrices ...
Source: Air Quality, Atmosphere and Health - April 15, 2024 Category: Environmental Health Source Type: research
Characteristics and ozone formation potentials of volatile organic compounds in a heavy industrial urban agglomeration of Northeast China
This study presents a systematic VOCs analysis in a less studied heavy industrial urban agglomeration located in Northeast China. Using a cruising platform, we conducted real-time monitoring of VOC concentrations and components at Changchun (CC), Jilin (JL), Siping (SP), and Liaoyuan (LY) in Jilin Province. During the observation period, the average VOC concentrations at CC, JL, SP, and LY were 63.38 ± 127.03, 260.39 ± 855.76, 18.06 ± 17.17, and 10.12 ± 17.48 µg/m3, respectively. Halocarbons were predominant with a high percentage of contribution (22.4 –31.1%) to the total observed VOCs for all cit...
Source: Air Quality, Atmosphere and Health - April 15, 2024 Category: Environmental Health Source Type: research
Differences in urban –rural gradient and driving factors of PM2.5 concentration in the Zhengzhou Metropolitan Area
AbstractThe escalation of PM2.5 pollution in the Zhengzhou Metropolitan Area (ZMA) underscores the pressing need for air pollution mitigation measures. We utilized high-resolution PM2.5 data from 2020, with a 1 km spatial resolution, to identify and comprehend the factors influencing PM2.5 concentration across the urban –rural continuum. This extensive dataset, inclusive of terrain, meteorological data, vegetation cover, population density, GDP, nighttime light data, and land use categories, facilitated our analysis of PM2.5 trends across the urban –rural spectrum in nine ZMA cities. Our results demonstrate that ther...
Source: Air Quality, Atmosphere and Health - April 11, 2024 Category: Environmental Health Source Type: research
Long term trends in global air pollution potential and its application to ventilation corridors
AbstractAir pollution potential is a measure of the inability of the atmosphere to disperse pollutants away from the source. It depends on Planetary Boundary Layer Height (PBLH) and wind speed. Global air pollution potential Index (APPI) maps have been generated for the first time using 40 years (1980 –2019) of PBLH and wind speed data available from ECMWF Reanalysis v5 (ERA5) data. These are useful for identifying ventilation corridors and for sustainable development. The seasonal climatology of APPI is also analyzed. Long-term trends in Ventilation coefficient (VC), PBLH, Wind speed, PM2.5, and Aerosol Optical Thicknes...
Source: Air Quality, Atmosphere and Health - April 5, 2024 Category: Environmental Health Source Type: research
Moss biomonitoring of air quality linked with trace metals pollution around a metallurgical complex in Elbasan, Albania
AbstractAnthropogenic pollution impacts human and environmental health, climate change, and air quality. Elbasan, an industrial town about 50 km from the capital city of Tirana, is susceptible to environmental contamination as a result of the outdated technology applied in metal processing and metallurgy. Environmental biomonitoring was conducted to provide a comprehensive view of contamination levels in atmospheric deposition as a resu lt of anthropogenic influences. The aim of this study is to evaluate the distribution of toxic metals in the atmospheric deposits in this area. Concentrations of thirteen trace metals wer...
Source: Air Quality, Atmosphere and Health - April 5, 2024 Category: Environmental Health Source Type: research
