Atmospheric mercury pollution: the current methodological framework outlined by environmental legislation
AbstractMercury is a toxic pollutant that exists in the atmosphere in several forms, operationally identified according to their chemical and physical characteristics. The problem of atmospheric mercury pollution has recently received increasing attention, as evidenced by the numerous European regulations issued in the last years. The normative question is closely related to the methodological one, as the quantification of the mercury species is strictly linked to the sampling and analysis methods. Due to their different bioavailability, airborne mercury forms detection is fundamental both in outdoor and indoor (i.e., work...
Source: Air Quality, Atmosphere and Health - May 15, 2021 Category: Environmental Health Source Type: research

Constraining emission estimates of carbon monoxide using a perturbed emissions ensemble with observations: a focus on Beijing
AbstractThe reliability of air quality simulations has a strong dependence on the input emissions inventories, which are associated with various sources of uncertainties, particularly in regions undergoing rapid emission changes where inventories can be ‘out of date’ almost as soon as they are compiled. This work provides a new methodology for updating emissions inventories by source sector using air quality ensemble simulations and observations from a dense monitoring network. It is adopted to determine the short-term trends in carbon monoxide (CO) emissions, an important pollutant and precursor to tropospheri...
Source: Air Quality, Atmosphere and Health - May 15, 2021 Category: Environmental Health Source Type: research

Spatio-temporal analysis of urban air pollutants throughout China during 2014 –2019
AbstractAir pollution control has become the top priority of China ’s “green development” concept since 2013. The Chinese government has enacted a range of policies and statutes to control contaminant emissions and improve air quality. On the basis of the national air quality ground observation database, the spatial and temporal distribution of air quality in dex value (AQI), fine particulate matter (PM2.5), coarse particles (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O3) were explored in 336 cities throughout China from 2014 to 2019. AQI and most pollutants (exc...
Source: Air Quality, Atmosphere and Health - May 14, 2021 Category: Environmental Health Source Type: research

Assessment of Coronavirus disease, the nose pollution filter, fermented spicy Kimchee, and peppery hot soup consumed in Korea
AbstractRecent statistics of Coronavirus diseases in Korea are studied with respect to many other countries. It is found that as of 8 February 2021, Korea has recorded 15.8 patients per 10,000 people, and this is used to calculate ratio to compare with other countries. On average, the number of Coronavirus patients in the world is 136.2 that is 8.6 times more than in Korea. The number of Covid-19 patients recorded in Korea is relatively smaller than other countries. There was no clear evidence on the atmospheric transport of Coronaviruses over 1 km to cause infection to other people. The infection of Coronaviruses appeared...
Source: Air Quality, Atmosphere and Health - May 11, 2021 Category: Environmental Health Source Type: research

Emission reduction of black carbon and polycyclic aromatic hydrocarbons during COVID-19 pandemic lockdown
In this study, we evaluated the changes in concentrations of BC, PAHs, and PM2.5 before and during the lockdown period. Our results show that lockdown resulted in a significant reduction in concentrations of these pollutants. The average mass concentration of BC, PAHs, and PM2.5 before the lockdown was 11.71  ± 3.33 μgm−3, 108.71  ± 27.77 ngm−3, and 147.65  ± 41.77 μgm−3, respectively. During the lockdown period, the concentration of BC, PAHs, and PM2.5 was 2.46  ± 0.95 μgm−3, 23.19  ± 1...
Source: Air Quality, Atmosphere and Health - May 10, 2021 Category: Environmental Health Source Type: research

Environmental impact estimation of PM 2.5 in representative regions of China from 2015 to 2019: policy validity, disaster threat, health risk, and economic loss
AbstractPM2.5 pollution used to be severe in China and the government has been devoted to PM2.5 control in recent years. Based on the latest multisource data and advanced algorithms, systematic environmental impact estimation of PM2.5 is achieved to demonstrate its trend and impacts under control policy. Policy validity is proved by a significant decrease in PM2.5 concentration (28%), energy intensity of GDP (13%), particulate matter emission (29%), and PM2.5 exceedance probability (51%) from the nation level. However, it still does not meet the requirement of WHO, and industrial and domestic sources are dominant for PM em...
Source: Air Quality, Atmosphere and Health - May 4, 2021 Category: Environmental Health Source Type: research

An integrated assessment of the impacts of PM 2.5 and black carbon particles on the air quality of a large Brazilian city
AbstractData on airborne fine particle (PM2.5) emissions and concentrations in cities are valuable for traffic and air quality managers, urban planners, health practitioners, researchers, and ultimately for legislators and decision makers. Emissions and ambient concentrations of PM2.5 and black carbon (BC) were assessed in the city of Curitiba, southern Brazil. The methodology combined a month-long monitoring campaign with both fixed and mobile instruments, development of emission inventories, and dispersion model simulations on different scales. The mean urban background PM2.5 concentrations during the campaign were 7.3 &...
Source: Air Quality, Atmosphere and Health - May 3, 2021 Category: Environmental Health Source Type: research

Short-term effects of outdoor particulate matter pollution on outpatient visits for urticaria in Lanzhou, China
This study aimed to evaluate the short-term effects of PM (PM2.5, PM10, and PMc) on daily outpatient visits for urticaria diseases in Lanzhou, China, during 2013 –2017. A total of 74,232 outpatient visits for urticaria were collected during the 5 years. A generalized additive Poisson model, based on a sex and age subgroups, was applied to analyze the daily outpatient visits for urticaria diseases. ER and 95% CI were calculated to evaluate the association b etween every 10 μg/m3 increment of PM pollutants and clinical visits. Increased concentrations of ambient PM2.5, PM10, and PMc were significantly associated wit...
Source: Air Quality, Atmosphere and Health - April 29, 2021 Category: Environmental Health Source Type: research

Ultraviolet erythemal radiation in Central Chile: direct and indirect implication for public health
This study provides useful information for public awareness and for adopting strategies to reduce the negative impacts on the human population from direct exposure to sunlight and its role in the production of photochemical pollutants. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - April 28, 2021 Category: Environmental Health Source Type: research

Concentrations, health risks, and sources of hazardous air pollutants in Seoul-Incheon, a megacity area in Korea
This study provides scientific information on the occurrence, health risks, and sources of various HAPs in large urban areas. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - April 26, 2021 Category: Environmental Health Source Type: research

Energy consumption, air pollution, and public health in China: based on the Two-Stage Dynamic Undesirable DEA model
AbstractThe rapid development of China ’s economy has largely relied on energy consumption, which has caused serious air pollution and affected public health, and economic development, energy consumption, air pollution, and public health have nowadays become the focus of academic attention. However, the previous literature failed to co nsider undesirable output when constructing the Dynamic Network DEA model to study the efficiencies of energy consumption, air pollution, and public health. As a result, past studies did not employ those three issues in a structure to effectively reflect and solve the problems. Therefo...
Source: Air Quality, Atmosphere and Health - April 24, 2021 Category: Environmental Health Source Type: research

Effect of silt loading on particle concentration in the atmosphere from resuspended road dust through particulate matter dispersion modeling
This study illustrates that resuspension of road dust can contribute significantly to PM in urban centers. Fine PM concentration exceeding 500 μg/m3 raises concerns about the health of commuters in the study region. This justifies the need for more regulations aiming at reducing the contribution of PM from resuspended road dust to overall urban PM. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - April 24, 2021 Category: Environmental Health Source Type: research

Particulate matter and foliar retention: current knowledge and implications for urban greening
AbstractSuspended particulate matter (PM) constitutes a major problem in urban areas. Air purification of polluted cities is critical for protecting the increasing population. PM deposited on leaves can be an effective method of air quality amelioration. However, there are several factors involved, either favoring or hindering the PM capture. In this revision, we synthesized the current information about PM plant retention: plant features, consequences, and the relation with the urban environment. We also propose to use a knowledge-based planning framework to designate zones with similar characteristics across the city and...
Source: Air Quality, Atmosphere and Health - April 24, 2021 Category: Environmental Health Source Type: research

Removal of gaseous VOCs by ultrasonic irradiation of water
AbstractThe decomposition of gaseous toluene as a representative volatile organic compound using 200 kHz ultrasonic waves was investigated as a new air cleaning method that does not require an ultraviolet light source, in accordance with the Minamata Convention on Mercury. Upon applying ultrasonic irradiation to water in a batch reactor, the removal ratio of gaseous toluene above the water reached 91.0% at 10 ppm and 92.7% at 40 ppm. The addition oft-BuOH, a radical scavenger that suppresses ultrasonic decomposition, inhibited the removal of gaseous toluene, indicating that the ultrasonic irradiation not only accelerated t...
Source: Air Quality, Atmosphere and Health - April 21, 2021 Category: Environmental Health Source Type: research

Identification of the health risk zones of nitrogen oxides in typical industry develop planning
In this study, a typical industrial park with NOx emission was selected. The status of emission sources, together with the sources planned in the development, were investigated. The status of NOx dispersion was profiled spatially by simulation, and some places with high levels of NOx were identified, such as WZ town. Simultaneously, the characteristics of people ’s activities based on land-use features were obtained by questionnaire, and the spatial exposure assessment of NOx was expressed in an average daily dose (ADD). The sequence of NOx risk zones associated with practical health risk was proved different from th...
Source: Air Quality, Atmosphere and Health - April 18, 2021 Category: Environmental Health Source Type: research

Receptor modelling and risk factors of polycyclic aromatic hydrocarbons (PAHs) in the atmospheric particulate matter at an IGP outflow location (island of the bay of Bengal —Bhola, Bangladesh)
AbstractThe research intended to find the atmospheric concentrations, sources, and health risks of 16 particle-phase polycyclic aromatic hydrocarbons (PAHs) at the Indo Gangetic Plain (IGP) outflow location for the first time. A total of thirty-six samples of total suspended particulate (TSP) matters were collected with a low volume sampler on quartz filters. PAHs were extracted from filters with dichloromethane (DCM) while purification processes were conducted using solid-phase extraction (SPE) and concentrations of PAHs were determined by gas chromatography coupled with mass spectrometry (GC-MS). The summation of the yea...
Source: Air Quality, Atmosphere and Health - April 17, 2021 Category: Environmental Health Source Type: research

Assessment of BTEX exposure and carcinogenic risks for mail carriers in Tehran, Iran
This study investigated personal exposure of mail carriers to atmospheric benzene, toluene, ethylbenzene, and xylenes (BTEX) and estimated their carcinogenic and non-carcinogenic risks due to their exposure to these compounds. A total of 36 mail carriers and 24 post office employees as the control group working in Tehran were included in this study. Spot urine samples were also collected before and after shifts. Monte Carlo simulations were used to estimate the distributions of carcinogenic and non-carcinogenic risks from BTEX exposures. Mail carriers were exposed to 10.4 ( ± 6.2), 35.3 (± 15.5), 5.5 (±...
Source: Air Quality, Atmosphere and Health - April 17, 2021 Category: Environmental Health Source Type: research

Exposure levels and health risk of PAHs associated with fine and ultrafine aerosols in an urban site in northern Algeria
AbstractSize distribution of toxicants in airborne particulates remains insufficiently investigated in Algeria. A 1-year campaign was performed at Bab Ezzouar, Algiers (Algeria), aimed at characterizing particulates for their physical and chemical features. For this purpose, scanning electronic microscopy (SEM), Raman spectroscopy (RaS), and GC-MS methodologies were applied. The samples were collected on daily basis by means of a high-volume sampling (HVS) system equipped with cascade impactor separating three size fractions, i.e., particles with aerodynamic diametersd
Source: Air Quality, Atmosphere and Health - April 16, 2021 Category: Environmental Health Source Type: research

Assessment of the impacts and transmission of coronavirus observed in the Republic of Korea in 2020 –2021
AbstractThe pandemic of Coronavirus diseases occurred in the Republic of Korea from 19 January 2020. By March 2020, Korea had reported the second largest number of Coronavirus patients in the world. On the anniversary date (2021), however, with a 51.3  M population, Korea has had 73.115 K patients with 1.283 K deaths, and this stands at 86th in the world. On average, Korea has 14.3 patients per 10,000 people. Air-parcel trajectory analysis and airflows show that in the general westerly region, air parcels and pollutants could flow out and in a ll directions. This suggests initially that Coronaviruses from so...
Source: Air Quality, Atmosphere and Health - April 16, 2021 Category: Environmental Health Source Type: research

Impact of emissions from a single urban source on air quality estimated from mobile observation and WRF-STILT model simulations
AbstractFor industrial cities, quantifying the influence of a given emission source on air quality is very important for making a detailed control strategy to the emissions. By taking use of the mobile observations and WRF-STILT model simulations, this study analyzes the air pollution characteristics and air quality influences from an industrial emission source in Xinji, China. During the study period, the hourly average concentrations of smoke, SO2, and NOx emitted from the industrial source are 1.01, 22.04, and 26.22 mg/m3, respectively. The mobile observations show that with the increase of distance from the emission so...
Source: Air Quality, Atmosphere and Health - April 16, 2021 Category: Environmental Health Source Type: research

Modeling energy and air pollution health damaging: a two-stage DEA approach
In this study, two-stage DEA method is used to estimate the efficiencies of 23 countries for the time period 1990 –2017, using capital, labor, and energy consumption as inputs, GDP as a desirable intermediate which is going out of the system, and sulfur oxides as an undesirable intermediate and respiratory disease deaths as an undesirable output. The results showed Iceland, Luxembourg, and New Zealand as the most overall efficient countries in the time period 1990–2017. Previous works have used the additive Chen et al. (2009) two-stage DEA model in order to handle undesirable variables. The contribution of this...
Source: Air Quality, Atmosphere and Health - April 14, 2021 Category: Environmental Health Source Type: research

Dust storm surveying and detection using remote sensing data, wind tracing, and atmospheric thermodynamic conditions (case study: Isfahan Province, Iran)
This study also dealt with the recognition of sources of this phenomenon and the route for dusts to enter Isfahan Province. In this study, data were collected for a 20-year period (1994 –2013) including daily dust data at the ground stations, brightness temperature at wavelengths of 11 μm and 12 μm, and GDAS data for tracking the dust particle route in HYSPLIT software. Naein and Airport stations with frequencies of 920 and 919 days of dust (respectively) were identified as two critical centers of dust in Isfahan province. The spring season had the highest number of days with dust. Also, the highest and lowest ...
Source: Air Quality, Atmosphere and Health - April 14, 2021 Category: Environmental Health Source Type: research

Spatial and temporal distribution characteristics and influencing factors analysis of particulate matter pollution in Jinan City
AbstractWith the development of economy, PM2.5 and PM10 have already become primary air pollutants that seriously affect people ’s life and health. As the capital city of Shandong Province, Jinan’s atmospheric environment quality is not optimistic. In the work, hourly PM2.5 and PM10 data were collected in Jinan from 2017 to 2019 to reveal the temporal and spatial variation of local particulate matter and its influencing factors. From 2017 to 2019, the average concentrations of PM2.5 and PM10 decreased by 17.61% and 15.87%, respectively, indicating the effects of efficient control measurements during this period...
Source: Air Quality, Atmosphere and Health - April 14, 2021 Category: Environmental Health Source Type: research

Impact of air quality on students ’ behavior in the Educational Centers
AbstractAir pollution of indoor and outdoor environments is one of the most important environmental problems in metropolises and industrial cities. The study explores the effects of air quality on the well-being of students at Shahid Beheshti University in Tehran. The sampling of the particles was carried out in four seasons in 2017 –2018. The concentration of PM≥11, PM7-11, PM4.7 –7, PM3.3 –4.7, PM2.1 –3.3, PM1.1 –2.1, PM0.7 –1.1, PM0.4 –0.7 and PM≤0.4 in inside and outside building was evaluated simultaneously using a direct measurement device. The length of each collection...
Source: Air Quality, Atmosphere and Health - April 13, 2021 Category: Environmental Health Source Type: research

Greenhouse gas emissions and cross-national happiness: a global perspective
This study examines how different forms of greenhouse gases affect happiness, along with other socioeconomic and demographic variables. The study uses a panel data analysis to investigate the relationship between happiness and greenhouse gases for 95 countries, spanning the period 1990 –2015. The empirical analysis is based on different measures of greenhouse gases, such as carbon dioxide emissions (CO2), nitrous oxide (N2O), methane (CH4), and total greenhouse gases (GHG). The empirical results document that greenhouse gases have a strong negative impact on happiness. All forms of greenhouse gases adversely impact c...
Source: Air Quality, Atmosphere and Health - April 12, 2021 Category: Environmental Health Source Type: research

Source identification of fine and coarse aerosol during smog episodes in Debrecen, Hungary
In this study, the identification of PM sources during smog episodes in Debrecen is presented. The smog episodes were characterized by the high concentration of PM10, and were linked to a thermal inversion period in November 2011 in Hungary, when an anticyclone occurred across Europe. The sources of PM2.5 and PMcoarse were identified by positive matrix factorization (PMF). Additionally, the source locations were explored by using the conditional probability function (CPF). A numerical weather prediction model (WRF) was also applied to evaluate the air pollution situation. In order to meet the goals of the study, the elemen...
Source: Air Quality, Atmosphere and Health - April 12, 2021 Category: Environmental Health Source Type: research

The impact of financial development on environmental quality: evidence from Malaysia
AbstractThis paper examined the impacts of financial development on environmental quality in Malaysia, using the sum of financial access, depth, and efficiency as auxiliary variables for financial development from 1987 to 2020. The autoregressive distributed lag method was used to examine whether a level relationship (long run) existed among the variables. The paper found a long-run relationship among the variables. Financial development, population growth, economic growth, and energy usage positively significantly contribute to environmental degradation in both the short and long run, while squared economic growth signifi...
Source: Air Quality, Atmosphere and Health - April 10, 2021 Category: Environmental Health Source Type: research

The ground-level ozone concentration is inversely correlated with the number of COVID-19 cases in Warsaw, Poland
AbstractCOVID-19, which is a consequence of infection with the novel viral agent SARS-CoV-2, first identified in China (Hubei Province), has been declared a pandemic by the WHO. As of September 10, 2020, over 70,000 cases and over 2000 deaths have been recorded in Poland. Of the many factors contributing to the level of transmission of the virus, the weather appears to be significant. In this work, we analyze the impact of weather factors such as temperature, relative humidity, wind speed, and ground-level ozone concentration on the number of COVID-19 cases in Warsaw, Poland. The obtained results show an inverse correlatio...
Source: Air Quality, Atmosphere and Health - April 8, 2021 Category: Environmental Health Source Type: research

Polycyclic aromatic hydrocarbons in atmospheric particulate matter (PM 10 ) at a Southwestern Europe coastal city: status, sources and health risk assessment
AbstractPolycyclic aromatic hydrocarbons (PAHs) were assessed in 65 atmospheric particulate matter (PM10) samples collected at a coastal urban area of Southwest Atlantic Europe during the 1-year period. Analytical methodology was successfully validated in terms of limits of detection and quantification, linearity, precision and trueness by using ERM CZ100 reference material and analytical recovery studies. Status of PM10-bound PAHs and their relationship with other PM10 constituents (major ions, trace metals, equivalent black carbon (eBC) and UV-absorbing particulate matter (UVPM)) in an area where few data are available i...
Source: Air Quality, Atmosphere and Health - April 8, 2021 Category: Environmental Health Source Type: research

Effect of traffic congestion and vegetation on airborne bacteria in a city of a developing country
AbstractThe study was designed to determine the variations in the diversity and the total abundance of airborne bacteria in the atmosphere of nine locations in Kandy City, the cultural capital of Sri Lanka. Culturable microorganisms were identified using 16S rDNA sequencing. Quantification of total bacterial abundance was calculated using real-time PCR. Twenty-eight bacterial species were identified by 16S rDNA sequencing.Bacillus cereus, Bacillus pumilus, Pseudomonas aeruginosa, Pseudomonas stutzeri, andBrevundimonas vesicularis were present in all the sampling sites. Most of the recorded species were opportunistic human ...
Source: Air Quality, Atmosphere and Health - April 7, 2021 Category: Environmental Health Source Type: research

The influence of COVID-19 preventive measures on the air quality in Abu Dhabi (United Arab Emirates)
AbstractThe preventive and cautionary measures taken by the UAE and Abu Dhabi governments to reduce the spread of the coronavirus disease (COVID-19) and promote social distancing have led to a reduction of mobility and a modification of economic and social activities. This paper provides statistical analysis of the air quality data monitored by the Environment Agency – Abu Dhabi (EAD) during the first 10 months of 2020, comparing the different stages of the preventive measures. Ground monitoring data is compared with satellite images and mobility indicators. The study shows a drastic decrease during lockdown in the c...
Source: Air Quality, Atmosphere and Health - April 4, 2021 Category: Environmental Health Source Type: research

Association of VOCs, PM 2.5 and household environmental exposure with children ’s respiratory allergies
This study suggests that the periodic monitoring of indoor air quality is an effective measure to prevent respiratory allergies among children in an indoor environment. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - April 4, 2021 Category: Environmental Health Source Type: research

Spatial and temporal variation characteristics of atmospheric NO 2 and SO 2 in the Beijing-Tianjin-Hebei region before and after the COVID-19 outbreak
In this study, based on hourly mass concentration data of NO2 and SO2 from atmospheric monitoring sites in the Beijing-Tianjin-Hebei (BTH) region during the COVID-19 epidemic period, the changes in transportation and industrial production in the region, data statistics, and  spatial analysis were used to analyze the pollution changes and their causes. The results indicate that the NO2 and SO2 concentrations in the BTH region decreased significantly during the epidemic period. The spatial distribution pattern of NO2 pollution in the BTH region was “high in the southeast and low in the northwest,” and SO2 po...
Source: Air Quality, Atmosphere and Health - April 2, 2021 Category: Environmental Health Source Type: research

Study on respiratory deposition doses of typical Indian opencast coal mineworkers using occupational particulate matter levels
This study investigates the particulate matter (PM0.5, PM0.5-1, PM1-2.5, and PM2.5-10) exposure in MEs of opencast coal mines near Dhanbad, India. The present study estimates the respiratory deposition doses (RDD) to mineworkers exposed under standard working scenarios at the worksite during day time shift (DTS). The coarser mode particle mass concentration (PMC) and particle number concentration (PNC) are 1.4 to 10.6 and 2 to 7.5 times higher within mines at active mining locations, whereas accumulation mode PMC and PNC is 1.1 to 1.5 and 1.1 to 1.9 times higher outside the mines. The opencast mining-associated activities ...
Source: Air Quality, Atmosphere and Health - April 1, 2021 Category: Environmental Health Source Type: research

Impact of ambient particulate matter on respiratory-related school absence: a case-crossover study in China
AbstractSchool absence was a monitor of temporary and immediate change in the health status of children. Previous studies have focused on the relationship between short-term absent rates and air pollutants, ignoring the number of daily respiratory-related school absence which was a more obvious indicator of children health. To explore the association between the respiratory-related school absence and particulate matter, we implemented this research. The absence data was collected from the symptom monitoring system due to illness. Daily concentrations of pollutants were obtained from the national air quality monitoring stat...
Source: Air Quality, Atmosphere and Health - March 29, 2021 Category: Environmental Health Source Type: research

Short-term impact of ambient air pollution exposure on daily clinic visits for patients with urticaria in Kaohsiung, Taiwan
AbstractThe aim of this study was to investigate associations between daily visit count for patients with urticaria (DVCPU) and short-term changes in ambient air pollutant concentrations. Information of DVCPU with an ICD-9 diagnostic code 708 in out-patient clinic visits was retrieved from the medical records of Kaohsiung Veterans General Hospital from January 1, 2014, to July 31, 2018, as a dependent variable. Ambient air pollutant data were retrieved from the Taiwan Air Quality Monitoring Network database including carbon monoxide (CO), ground-level ozone (O3), particulate matter (PM)10, PM2.5, nitrogen dioxide (NO2), an...
Source: Air Quality, Atmosphere and Health - March 24, 2021 Category: Environmental Health Source Type: research

Exposure to ambient air pollution and prevalence of asthma in adults
This study aimed to investigate the effect of exposure to ambient air pollution and prevalence of asthma in adults. This cross-sectional study was done between November 2015 and February 2016. The asthma prevalence was surveyed in 3172 adults between 20 and 44 years old in Tehran, Iran. Face to face interview and standardized questionnaire (European Community Respiratory Health Survey (ECRHS)) were used for data gathering. Concentrations of air pollutants in the whole city of Tehran were obtained from Tehran Air Quality Control Company (AQCC). Air pollution exposure assessed by the spatial analysis based on GIS method. The...
Source: Air Quality, Atmosphere and Health - March 22, 2021 Category: Environmental Health Source Type: research

Exposure to ambient particulate matter increases blood count parameters with potential to mediate a cardiovascular event: results from a population-based study in Portugal
In conclusion, we detected some sex-differential associations regarding the short and long-term effect of PM10 exposure on blood count parameters with potential to mediate a cardiovascular event, namely on the RDW parameter, that were never been described. It is uncertain whether changes in blood count parameters due to PM10 exposure constitute an adverse health outcome or it reflects only a normal immunity response. However, due to its potential to trigger cardiovascular events, it is essential to reduce PM10 levels exposure to protect the population ’s cardiovascular health. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - March 20, 2021 Category: Environmental Health Source Type: research

Mutation test and multiple-wavelet coherence of PM 2.5 concentration in Guiyang, China
AbstractThe negative effects of PM2.5 concentration in urban development are becoming more and more prominent. Bernaola-Galvan Segmentation Algorithm (BGSA) and wavelet analysis are powerful tools for processing non-linear and non-stationary signals. First, we use BGSA that reveals there are 41 mutation points in the PM2.5 concentration in Guiyang. Then, we reveal the multi-scale evolution of PM2.5 concentration in Guiyang by wavelet analysis. In the first part, we performed one-dimensional continuous wavelet transform (CWT) on the eight monitoring points in the study area, and the results showed that they have obviously s...
Source: Air Quality, Atmosphere and Health - March 19, 2021 Category: Environmental Health Source Type: research

The effect of consecutive ambient air pollution on the hospital admission from chronic obstructive pulmonary disease in the Chengdu region, China
AbstractHospitalisation risks for chronic obstructive pulmonary disease (COPD) have been attributed to ambient air pollution worldwide. However, a rise in COPD hospitalisations may indicate a considerable increase in fatality rate in public health. The current study focuses on the association between consecutive ambient air pollution (CAAP) and COPD hospitalisation to offer predictable early guidance towards estimates of COPD hospital admissions in the event of consecutive exposure to air pollution. Big data analytics were collected from 3-year time series recordings (from 2015 to 2017) of both air data and COPD hospitalis...
Source: Air Quality, Atmosphere and Health - March 18, 2021 Category: Environmental Health Source Type: research

A deep learning method for estimating the atmospheric pollutants removal potential of the large-scale environmental strategy based on green roofs
This study provides an intuitive basis for environment policy making and urban green system planning. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - March 13, 2021 Category: Environmental Health Source Type: research

Concentrations, sources, and health risk associated with exposure to BTEX at ten sites located in an urban-industrial area in the Bajio Region, Mexico
AbstractThe purpose of this study was to study the spatial and temporal variation of BTEX in the ambient air of Leon, Guanajuato, Mexico, to assess the inhalation health risk to the local population from exposure to these compounds. BTEX were monitored using passive samplers during two sampling seasons (rainy 2019 and cold dry 2020), and samples were analyzed by gas chromatography with flame ionization detection. BTEX ratios and meteorological analysis suggested that the concentrations were mainly influenced by vehicular and local sources located to the SE of the study area. The sum of average concentrations of BTEX in rai...
Source: Air Quality, Atmosphere and Health - March 13, 2021 Category: Environmental Health Source Type: research

Oxidative potential of ambient fine particulate matter for ranking of emission sources: an insight for emissions reductions
AbstractIn Delhi, the capital of India, fine particulate matter (PM2.5) poses alarming challenges to human health and well-being. The majority of air pollution studies are focused on measurements of concentrations and composition of atmospheric particulate matter and gaseous species. However, a more useful insight is the actual impact on human health due to air pollution —and how this varies with pollutant abundance and pollutant source. Toxic potential measures the intrinsic/extrinsic toxicity of PM. Source apportionment studies are required to determine dominant sources contributing to PM toxic potential. Thus, hea...
Source: Air Quality, Atmosphere and Health - March 12, 2021 Category: Environmental Health Source Type: research

Particulate matter 10 (PM 10 ): persistence and trends in eight European capitals
AbstractThis paper examines the statistical properties of daily PM10 in eight European capitals (Amsterdam, Berlin, Brussels, Helsinki, London, Luxembourg, Madrid and Paris) over the period 2014 –2020 by applying a fractional integration framework; this is more general than the standard approach based on the classical dichotomy between I(0) stationary and I(1) non-stationary series used in most other studies on air pollutants. All series are found to be characterised by long memory and fr actional integration, with orders of integration in the range (0, 1), which implies that mean reversion occurs and shocks do not h...
Source: Air Quality, Atmosphere and Health - March 11, 2021 Category: Environmental Health Source Type: research

Inter- and intra-city comparisons of PM 2.5 concentration changes under COVID-19  social distancing in seven major cities of South Korea
This study analyzes changes in the concentrations of fine particulate matter (PM2.5) during the 30-day periods before and since the start of social distancing on 29 February 2020 using measurement data from air quality monitoring stations at various locations of the seven major cities of South Korea, namely, Seoul, Busan, Incheon, Daegu, Daejeon, Gwangju, and Ulsan. All seven cities experienced decreased levels of PM2.5 concentration by up to 25% and smaller fluctuations during the period of social distancing. Inter-city comparisons show that the PM2.5 concentration changes are positively correlated with the city-wide PM2....
Source: Air Quality, Atmosphere and Health - March 11, 2021 Category: Environmental Health Source Type: research

Temporal variation of sulfate concentration in PM 2.5 and major factors enhancing sulfate concentration in the atmosphere of Seoul, Korea
AbstractDespite frequent observations of high particulate matter (PM) concentrations in Seoul, Korea, the sulfate (SO42 −) concentrations in PM with an aerodynamic diameter below or equal to 2.5 μm (PM2.5) in Seoul have been reduced during the 1990s. However, there has been no decreasing trend during the 2000s. Despite the very low ambient SO2 concentrations, high SO42 − concentration episodes frequently occur in Seoul; however, the reasons for this remain poorly understood. In the present study, we sought to determine the major factors that enhance sulfur oxidation in Seoul by analyzing measurement data fro...
Source: Air Quality, Atmosphere and Health - March 10, 2021 Category: Environmental Health Source Type: research

Comparison between AirQ+  and BenMAP-CE in estimating the health benefits of PM 2.5 reduction
AbstractThe city of Tehran faces a severe problem of air pollution, and one of the most harmful pollutants in its ambient air is PM2.5. The present study aims to estimate the health benefits of reducing PM2.5 concentration to WHO air quality guideline levels using AirQ+  and BenMAP-CE software tools and subsequently compare their estimations. We statistically analyzed the PM2.5 concentration in Tehran during 2016 –2018. The concentration and mortality data were acquired from Tehran’s air quality monitoring stations and cemetery registry. The number of deaths due to all causes, ischemic heart disease, and...
Source: Air Quality, Atmosphere and Health - March 9, 2021 Category: Environmental Health Source Type: research

Al 3+ reduces PM 2.5 -induced cytotoxicity in human bronchial epithelial cells via reducing ROS production
This study presents a meaningful method to study the cytotoxicity and mechanisms of specific components in complex PM2.5 particles and these findings have implications for revealing the enormous deviations of toxicity of PM2.5 particles in different periods and locations. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - March 2, 2021 Category: Environmental Health Source Type: research

Spatial-temporal prediction of ambient nitrogen dioxide and ozone levels over Italy using a Random Forest model for population exposure assessment
AbstractWe developed an integrated approach coupling a chemical transport model (CTM) with machine learning (ML) techniques to produce high spatial resolution NO2 and O3 daily concentration fields over Italy. Three years (2013 –2015) simulations, at a spatial resolution of 5 km, performed by the Flexible Air quality Regional Model (FARM) were used as predictors, together with other spatial-temporal data, such as population, land-use, surface greenness and road networks, by a ML Random Forest (ML-RF) algorithm to produc e daily concentrations at higher resolution (1 km) over the national territory. The evalu...
Source: Air Quality, Atmosphere and Health - March 1, 2021 Category: Environmental Health Source Type: research

VOCs and PM concentrations in underground parking garages of the commercial center and high-rise residential buildings
This study sampled or online monitored the concentrations of benzene, toluene, xylenes, formaldehyde, TVOC (total volatile organic compounds), PM2.5, and PM10 in the underground garage of three commercial center and high-rise residential buildings. The time-weighted average (TWA) concentrations of pollutants in the underground garage in the commercial center/high-rise residential buildings were as follows: benzene 0.12/0.11 mg·m−3, toluene 0.33/0.31 mg·m−3, xylenes 0.23/0.20 mg·m−3, TVOC 1.04/1.19 mg·m−3, PM2.5 0.20/0.19 mg·m−3, and PM10 0.24/0.22 mg·m...
Source: Air Quality, Atmosphere and Health - March 1, 2021 Category: Environmental Health Source Type: research