The fragranced products phenomenon: air quality and health, science and policy
AbstractFragrance is used in consumer products around the world. However, fragrance has been associated with adverse effects on indoor and outdoor air quality and human health. Questions arise, such as the following: Why does fragrance in products pose problems? What are sources of emissions and exposures? What are health and societal effects? What are possible solutions? This paper examines the issue of fragranced consumer products and its science and policy dimensions, with a focus on the implications for air quality and human health. Results include new findings and new questions for future research directions. (Source:...
Source: Air Quality, Atmosphere and Health - September 19, 2020 Category: Environmental Health Source Type: research

Protective equipment and health education program could benefit students from dust pollution
AbstractIn recent years, children living in the downstream of the Choshui River in Taiwan have been exposed to violent dust episodes. For the sake of the health of these children, we aimed to investigate the effectiveness of protective equipment (sand-proof plastic cover and air purifier) installed outside/inside the classrooms on students ’ pulmonary function and evaluate the health education program for preventing the adverse consequences of exposure to river-dust episodes. Public elementary school students in Yunlin County, which was severely affected by river-dust, were selected as the participants. Study 1 consi...
Source: Air Quality, Atmosphere and Health - September 18, 2020 Category: Environmental Health Source Type: research

Volatile chemical emissions from essential oils with therapeutic claims
This study investigated VOCs emitted from 14 commercially available essential oils with therapeutic claims, such as beneficial for coughs, colds, flus, relaxation, sleep, tension, headaches, stress, or skin irritation. The essential oils were selected from different brands and types, such as tea tree oil, lavender oil, eucalyptus oil, geranium oil, peppermint oil, bergamot oil, orange oil, and oil blends. Analyses were performed using headspace gas chromatography/mass spectrometry (GC/MS). The analyses found 1034 VOCs emitted from the 14 essential oils, representing 378 VOC identities. The most prevalent VOCs (in more than...
Source: Air Quality, Atmosphere and Health - September 18, 2020 Category: Environmental Health Source Type: research

Relationship between submicron particle formation and air mass history observed in the Asian continental outflow at Gosan, Korea, during 2008 –2018
AbstractWe investigated the impact of air mass origin on submicron particle size distributions and new particle formation (NPF) events using 10-year measurements at Gosan, Korea, in the Asian continental outflow. NPF events were identified on approximately 27.1% of total observation days, and 123 and 381 days of them were classified as strong and weak NPF days, respectively, based on the first-mode loading vectors and corresponding principal components in the cyclostationary empirical orthogonal function analysis. NPF events occurred less than 15% of the total observation days for the South China (SC), Pacific Ocean, and s...
Source: Air Quality, Atmosphere and Health - September 17, 2020 Category: Environmental Health Source Type: research

Improvement of chemical initialization in the air quality forecast system in North Macedonia, based on WRF-Chem model
AbstractUrban air quality is determined by a complex interaction of factors associated with anthropogenic emissions, atmospheric circulation, and geographic factors. Most of the urban-present pollution aerosols and trace gases are toxic to human health and responsible for damage of flora, fauna, and materials. The air quality prediction system based on state-of-the-art Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) has been configured and designed for North Macedonia. An extensive set of experiments have been performed with different model settings to forecast simultaneously the weather and air qu...
Source: Air Quality, Atmosphere and Health - September 16, 2020 Category: Environmental Health Source Type: research

Inactivation times from 290 to 315 nm UVB in sunlight for SARS coronaviruses CoV and CoV-2 using OMI satellite data for the sunlit Earth
AbstractUVB in sunlight, 290 –315 nm, can inactivate SARS CoV and SARS CoV-2 viruses on surfaces and in the air. Laboratory exposure to ultraviolet irradiance in the UVC range inactivates many viruses and bacteria in times less than 30 min. Estimated UVB inactivation doses from sunlight in J/m2 are obtained from UVC measurements and radiative transfer calculations, weighted by a virus inactivation action spectrum, using OMI satellite atmospheric data for ozone, clouds, and aerosols. For SARS CoV, using an assumed UVC dose near the mid-range of measured values,D90 = 40 J/m2, 90% inactivation timesT90 are estimated for...
Source: Air Quality, Atmosphere and Health - September 15, 2020 Category: Environmental Health Source Type: research

Comprehensive evaluation of urban air quality using the relative entropy theory and improved TOPSIS method
AbstractWith the acceleration of economic development and urbanization, urban air pollution is becoming increasingly serious and has already affected the environmental and human health. Therefore, the detection and management of air quality is imperative. An accurate air quality evaluation can help people better understand and improve the air quality. In this work, a new multi-pollutant weighted comprehensive air quality assessment method combined with the relative entropy theory and improved order preference by similarity to the ideal solution (iTOPSIS) method is proposed. First, two objective weight methods are adopted t...
Source: Air Quality, Atmosphere and Health - September 14, 2020 Category: Environmental Health Source Type: research

The impact of air pollution on urban residents ’ health expenditure: spatial evidence from Yangtze River Delta, China
AbstractCurrently, preventing and controlling air pollution and inhibiting the excessively rapid growth of medical expenditures to reduce the living burden of residents have become a focus of general concern of society as a whole. It is of great significance to conduct an in-depth study of the relationship between air pollution and public health expenditure and clarify to what extent air pollution affects health expenditure. Thus, this paper adopted spatial econometric methods to measure the impact of air pollution on residents ’ health expenditure via panel data from 16 core cities in the Yangtze River Delta in Chin...
Source: Air Quality, Atmosphere and Health - September 12, 2020 Category: Environmental Health Source Type: research

Prediction of the concentrations of PM1, PM2.5, PM4, and PM10 by using the hybrid dragonfly-SVM algorithm
In this study, the meta-heuristic dragonfly algorithm (DA) was used in order to select the optimal hyper-parameters of the Support Vector Machine model. For this, a MATLAB ® program based on the dragonfly optimization algorithm coupled with the SVM regression algorithm has been written in order to correlate for the PMi concentrations. The obtained results show that the established model has good predictive performance, with a coefficient of determinationR2 = 0.98 and root of the mean square error RMSE = 1.9261. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - September 11, 2020 Category: Environmental Health Source Type: research

UK COVID-19 lockdown: 100 days of air pollution reduction?
AbstractOn the 23 March 2020, a country-wide COVID-19 lockdown was imposed on the UK. The following 100 days saw anthropogenic movements quickly halt, before slowly easing back to a “new” normality. In this short communication, we use data from official UK air-quality sensors (DEFRA AURN) and the UK Met Office stations to show how lockdown measures affected air quality in the UK. We compare the 100 days post-lockdown (23 March to 30 June 2020) with the same period from the previous 7 years. We find, as shown in numerous studies of other countries, the nitrogen oxides levels across the country dropped substantia...
Source: Air Quality, Atmosphere and Health - September 11, 2020 Category: Environmental Health Source Type: research

Odor nuisance and health risk assessment of VOC emissions from a rendering plant
AbstractVolatile organic compounds (VOCs) are generated from animal rendering facilities, some of which are malodorous, while others are considered hazardous. Odor annoyance potential, possible carcinogenic risks, and toxic effects due to VOC emissions from a rendering plant unit in Southwest Greece were evaluated for the general population residing in the near vicinity. Nine air samples were collected from the facilities of an integrated rendering plant and the surrounding area, over a 9-month period. Volatile compounds were absorbed onto solid sorbents containing Tenax TA/Sulficarb via active sampling and analyzed by the...
Source: Air Quality, Atmosphere and Health - September 11, 2020 Category: Environmental Health Source Type: research

Impact on ground-level ozone formation by emission characterization of volatile organic compounds from a flex-fuel light-duty vehicle fleet in a traffic tunnel in Rio de Janeiro, Brazil
AbstractThe present study aimed to evaluate the contribution of mobile source emissions from, in particular, light-duty vehicles (LDVs) to tropospheric ozone formation in the Rio de Janeiro Metropolitan Area (RJMA), by quantifying the volatile organic compounds (VOCs) in a representative urban road tunnel of the city. The importance of having this type of study in Brazil is because this country has a unique vehicle emission scenario that passenger cars can use different percentages of bioethanol mixed in gasoline. The concentration of speciated VOCs in Rebou ças tunnel in Rio de Janeiro, Brazil, was measured in two ...
Source: Air Quality, Atmosphere and Health - September 10, 2020 Category: Environmental Health Source Type: research

Fragranced laundry products and emissions from dryer vents: implications for air quality and health
AbstractFragranced laundry products emit numerous volatile organic compounds (VOCs), including terpenes such as limonene. Fragrance emissions have been associated with adverse health effects such as asthma attacks and breathing difficulties. Further, fragrance terpenes are primary indoor air pollutants that can react with other compounds and contribute to both indoor and outdoor air pollution. This paper examines volatile emissions and exposures from fragranced laundry products, and the implications for air quality and health. The paper synthesizes and analyzes data from studies conducted across the United States (US) and ...
Source: Air Quality, Atmosphere and Health - September 9, 2020 Category: Environmental Health Source Type: research

Air quality data series estimation based on machine learning approaches for urban environments
AbstractAir pollution is one of the main environmental problems in residential areas. In many cases, the effects of air pollution on human health can be prevented by forecasting the air quality in the next day. In order to predict the 1  day in advance air quality index (AQI) of Orumiyeh city, the hybrid single decomposition (HSD) and hybrid two-phase decomposition (HTPD) models were used. In the first step, the AQI data were decomposed by complementary ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and was hy bridized with general regression neural network (GRNN) and extreme learning machine (ELM...
Source: Air Quality, Atmosphere and Health - September 8, 2020 Category: Environmental Health Source Type: research

Concentrations of total arsenic and arsenic species in PM 2.5 in Nanjing, China: spatial variations and influences of local emission sources
AbstractThe aim of this study was to assess the spatial variation in the concentrations of total arsenic (Astotal), arsenite (As(III)), arsenate (As(V)), monomethylarsonic acid (MMAs(V)), and dimethylarsinic acid (DMAs(V)) in fine particulate matter (PM2.5) and to explore the influence of local emission sources based on the monitoring data from 18 sampling sites in Nanjing, China. The results showed that the average concentration of Astotal in the PM2.5 was 6.81 ng/m3 in Nanjing, which exceeded the standard limit of 6 ng/m3 in China. As(V) was the dominant species and varied between 71 and 81% of water-extractible As in th...
Source: Air Quality, Atmosphere and Health - September 7, 2020 Category: Environmental Health Source Type: research

Air quality pollutants and their relationship with meteorological variables in four suburbs of Greater Sydney, Australia
This study can be used to mitigate, improve prediction and forecast accuracy o f air pollution. Such studies open the possibilities to explore the effects of air quality and its impact on public health. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - September 7, 2020 Category: Environmental Health Source Type: research

Systematics of atmospheric environment monitoring in China via satellite remote sensing
AbstractSatellite remote sensing is increasingly applied in the field of environmental protection, especially in atmospheric monitoring. Here, a comprehensive review is provided on the development, limits, and prospects of remote sensing of the atmospheric environment in China. Firstly, the paper introduced the principle of detection of three types of atmospheric parameters and commonly used satellite data. Secondly, advances in retrieval methods, product validations, and applications in China were summarized. This included aerosol, particulate matter, haze, straw burning, dust storm, gaseous pollutant (sulfur dioxide, nit...
Source: Air Quality, Atmosphere and Health - September 7, 2020 Category: Environmental Health Source Type: research

Impacts of nationwide lockdown due to COVID-19 outbreak on air quality in Bangladesh: a spatiotemporal analysis
In this study, the concentrations of NO2, SO2, CO, and O3 from 1 February to 30 May of the year 2019 and 2020 were analyzed. The average SO2 and NO2 concentrations were decreased by 43 and 40%, respectively, while tropospheric O3 were found to be increased with a maximum of> 7%. Among the major cities, Dhaka, Gazipur, Chattogram, and Narayanganj were found to be more influenced by the restricted emissions. In Dhaka, NO2 and SO2 concentrations were decreased approximately by 69 and 67%, respectively. Our analysis reveals that NO2 concentrations are highly correlated with the regional COVID-19 cases (r = 0.74). The study ...
Source: Air Quality, Atmosphere and Health - September 5, 2020 Category: Environmental Health Source Type: research

Impact of COVID -19 pandemic lockdown on distribution of inorganic pollutants in selected cities of Nigeria
In this study, we investigated the impact of the lockdown on air pollution in three highly populated and industrious cities in Nigeria. Compared with historical mean values, NO2 levels increased marginally by 0.3% and 12% in Lagos and Kaduna respectively. However, the city of Port Harcourt saw a decrease of 1.1% and 215.5% in NO2 and SO2 levels respectively. Elevated levels of O3 were observed during the period of lockdown. Our result suggests that there are other sources of air pollution apart from transportation and industrial sources. Our findings showed that the COVID-19-induced lockdown was responsible for a decrease ...
Source: Air Quality, Atmosphere and Health - September 5, 2020 Category: Environmental Health Source Type: research

Numerical simulation and experimental validation of the ventilation system performance in a heated room
This study examines the numerical simulation in a room containing a manikin sitting in front of a computer. The computational fluid dynamics (CFD) tools were considered using ANSYS Fluent 16.2 software. This software exploits the finite volume method that is based on the resolution of the Navier-Stokes equations. The distribution of the temperature, velocity, static pressure, turbulent kinetic energy, turbulent viscosity, and turbulent dissipation is tested in different planes and different directions to characterize the airflow indoor a heated room. Equally, the thermal comfort is examined by calculating the predicted mea...
Source: Air Quality, Atmosphere and Health - September 4, 2020 Category: Environmental Health Source Type: research

Microplastics as emerging atmospheric pollutants: a review and bibliometric analysis
AbstractMicroplastics are ubiquitously present in various environments; thus, they have become a noteworthy issue by researchers. The present study aimed to provide state-of-the-art on microplastic studies and in detail to review the researches on atmospheric microplastic pollution in terms of occurrence, distribution, sampling, analysis, sources, and transport. The results of the bibliometric analysis showed that the annual output in microplastic research has increased, especially during the last 5  years. The research hot spots in the microplastic topic are marine environment, surface water, freshwater, wastewater, ...
Source: Air Quality, Atmosphere and Health - September 3, 2020 Category: Environmental Health Source Type: research

Radon measurements in water galleries in Tenerife, Canary Islands (Spain)
AbstractWater galleries are one of the main systems for capturing groundwater on the western islands of the Canary Islands (Spain). Water galleries are approximately 2-m high × 2-m wide excavated, sub-horizontal drains. This research focuses on taking measurements of radon, a natural radioactive gas present in volcanic territories, such as the Canary Islands, which may cause health problems for workers inside water galleries. The aim of the research is to evaluate radon gas activity as a natural risk in a selected group of water galleries of Tenerife by means of officially approved radon passive detector devices. It ...
Source: Air Quality, Atmosphere and Health - September 2, 2020 Category: Environmental Health Source Type: research

Ecological and human health risk assessment of heavy metals in dust affected by fireworks during the Spring Festival in Beijing
AbstractTo understand the impact of fireworks on heavy metals in dust, the human health and ecological risks and source identification of six common heavy metals, lead (Pb), chromium (Cr), arsenic (As), copper (Cu), zinc (Zn) and nickel (Ni), were investigated in aged dust (AD) and fireworks dust (FD) collected from seven main administrative districts in Beijing. The health risk was assessed with the hazard quotient (HQ) and hazard index (HI) for non-carcinogenic elements and the carcinogenic risk (RI) for carcinogenic elements. The potential ecological risk was estimated based on the ecological risk index (RI). Principal ...
Source: Air Quality, Atmosphere and Health - August 31, 2020 Category: Environmental Health Source Type: research

Estimation of direct and diffuse solar radiation on the horizontal plane considering air quality index and turbidity factor in Assekrem, Tamanrasset, Algeria
This study aimed to write a mathematical model that contributes to providing all points of change for solar radiation according to variation in the angle of solar elevation. This work proposed a model sufficient to predict the solar radiation on a horizontal area in different contexts and added air pollution such as CO, CO2, and CH4 linked with parameters such as ηbeam, κbeam, κdiffuse, β, and TL, which represent a new pollution factor that defines the mathematical model according to two components, direct and diffuse radiation. We know that the effect of pollution on light is achieved by absorbing sol...
Source: Air Quality, Atmosphere and Health - August 30, 2020 Category: Environmental Health Source Type: research

The impact of COVID-19 lockdown on the air quality of Eastern Province, Saudi Arabia
AbstractSince the identification of the COVID-19 outbreak in Wuhan, China, in December 2019, the death toll from the direct infection by COVID-19 has exceeded 775,000, and more than 21 million cases have been reported to the World Health Organization (WHO) around the world. It is strongly believed that its impact might be worsened by poor outdoor and indoor air qualities, particularly on older adults. The nationwide lockdown measures were imposed between March 23 and June 20, 2020, to stop the spread of COVID-19 pandemic in the Kingdom of Saudi Arabia (KSA). In this work, the possible effects of the lockdown on the air qua...
Source: Air Quality, Atmosphere and Health - August 29, 2020 Category: Environmental Health Source Type: research

Lag effect of ambient temperature on the cardiovascular disease hospital admission in Jiuquan, China
AbstractThe association between temperature and cardiovascular disease has been widely reported. In the city of Jiuquan, a developing area that has seldom been studied, the association is still unclear. The hospital data of cardiovascular disease (CVD) admissions and meteorological data were collected from the new rural cooperative medical insurance of Gansu Province and China Meteorological Science Data Sharing Service, respectively. A total of 26,383 cases were admitted during the research period. Poisson regression with a distributed lag nonlinear model was selected to evaluate the association between temperature and th...
Source: Air Quality, Atmosphere and Health - August 28, 2020 Category: Environmental Health Source Type: research

Radon exposure assessment and its decay products aerosols in some houses of the province of El Jadida, Morocco
In this study, indoor and outdoor activities of radon and its progeny were measured using the passive dosimetry CR-39 detectors inside and outside of 60 houses of El Jadida province, Morocco. Thereafter, three radiological parameters namely the potential alpha energy concentrations (PAEC), the annual effective dose (E), and the lung cancer cases per year per million person (CPPP) were calculated. The obtained results showed that the nature of construction materials, the presence of wells inside houses and the proximity of the industrial zone of Jorf Lasfar have a significant impact on indoor radon concentrations and its de...
Source: Air Quality, Atmosphere and Health - August 27, 2020 Category: Environmental Health Source Type: research

Pandemic products and volatile chemical emissions
This study investigates the volatile organic compounds (VOCs) emitted from “pandemic products” that are being used frequently and extensively in society. In addition, among these emissions, this study identifies potentially hazardous compounds, compares so-called green and regular versions of products, and examines whether ingredients are disclosed to the public. Using gas chromatography/mass spectrometry, 26 commonly used pandemic products, including 13 regular and 13 so-called green versions, were analyzed for their volatile emissions. Product types included hand sanitizers, air disinfectants, multipurpose cl...
Source: Air Quality, Atmosphere and Health - August 27, 2020 Category: Environmental Health Source Type: research

Exploring a deep LSTM neural network to forecast daily PM 2.5 concentration using meteorological parameters in Kathmandu Valley, Nepal
This study proposes a deep LSTM neural network to forecast accurate PM2.5 concentration in the Kathmandu valley. Correlation analysis illustrates that dew, minimum ambient temperature, maximum ambient temperature, and pressure are strongly correlated with PM2.5 concentration. Hence, five models are developed based on different input parameter combinations and are eventually evaluated to determine the best performing model. Model 2 with single-step prediction is the best performing deep LSTM model with RMSE of 13.04  μg/m3 and MAE of 10.81  μg/m3. The SARIMA model applied to the univariate PM2.5 data series ...
Source: Air Quality, Atmosphere and Health - August 26, 2020 Category: Environmental Health Source Type: research

An estimation of shipping emissions to analysing air pollution density in the Izmir Bay
In conclusion, the highest emissions were recorded in Port of Alsancak and inner bay due to long hoteling periods. The port area was determined as the riskiest region that threatens public health. The study recommends emission reduction strategies such as replacement of ships ’ source of energy in ports (e.g. cold ironing) and increase usage of green fuels. (Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - August 25, 2020 Category: Environmental Health Source Type: research

Comparison of diffusion tube –measured nitrogen dioxide concentrations at child and adult breathing heights: who are we monitoring for?
This study examines variations in NO2 concentrations with height at two roadside locations along a busy urban road in Newcastle upon Tyne (UK) over an 8-month period. NO2 concentrations were passively monitored at building facades (approximately 7.0  m from the roadside) at heights of 0.7 m, 1.7 m and 2.7 m to replicate child breathing height in prams and buggies, adult breathing height and the Newcastle City Council sampling height (for 2017), respectively. Pairedt tests indicated that NO2 concentrations were significantly lower at 2.7  m (4.7% lower,n = 16,p = 0.001) a...
Source: Air Quality, Atmosphere and Health - August 25, 2020 Category: Environmental Health Source Type: research

A study on variation of atmospheric pollutants over Bhubaneswar during imposition of nationwide lockdown in India for the COVID-19 pandemic
This study reports change in air quality and its impact on the environment during the unique lockdown scenario at Bhubaneswar, a coastal smart city in east India. The urban air shows a remarkable reduction in the mean pollutant levels influenced by traffic emission viz. NOx (~ 67 %) and BC (~ 47 %) during lockdown over the pre-lockdown. Comparatively, a lower reduction of CO (~ 14 %) is attributed to the dominance of natural atmospheric chemical regulation and biogenic sources in addition to anthropogenic contributions. In addition to the lockdown, frequent rain events due to depression in the Bay of Bengal (BoB) also had ...
Source: Air Quality, Atmosphere and Health - August 24, 2020 Category: Environmental Health Source Type: research

Do natural resources heal the environment? Empirical evidence from Turkey
AbstractThe increase in environmental degradation has rapidly enhanced the interest in the main determinants of CO2 emissions. Although many attempts have been exerted to discover the determinants of CO2 emissions, the impact of natural resources (NAT), which have significant environmental impacts on CO2 emissions, has been considerably neglected. To fulfill this gap in the literature, the study analyzes the impact of NAT on CO2 emissions covering the period 1975 –2017 in Turkey. In addition, economic growth, renewable energy consumption, trade openness, and energy consumption are added in the model as explanatory va...
Source: Air Quality, Atmosphere and Health - August 24, 2020 Category: Environmental Health Source Type: research

The impact of emissions and climate change on future ozone concentrations in the USA
AbstractThe potential impacts of climate change and future anthropogenic emissions on ozone levels in the USA are examined by linking global climate models to regional meteorological and air quality models during 3-year summer periods over the nine climate regions of the continental United States for three cases: (1) using 2016 meteorology and emissions (CTRL), (2) using 2050 meteorology and 2016 emissions (CASE1), and (3) using 2050 meteorology and 2050 emissions (CASE2). As climate change alone is expected to worsen ozone pollution and emission reductions are expected to reduce ozone concentrations, in this paper, the no...
Source: Air Quality, Atmosphere and Health - August 23, 2020 Category: Environmental Health Source Type: research

Particulate matter (PM 10 and PM 2.5 ) concentrations during a Saharan dust episode in Istanbul
This study focuses on particulate matter concentrations (PM10 and PM2.5) during this Saharan dust episode to better understand the effect of dust transportation on Istanbul ’s air quality. HYSPLIT trajectory model, satellite products, and air quality monitoring data from ground observations were utilized. We show that the PM10 concentrations increased significantly during the dust episode while PM2.5 concentrations didn ’t increase considerably. There was only a slight rise in the values of PM2.5. The significant increase for the PM10 values can be explained by the higher gravitational settling velocities of co...
Source: Air Quality, Atmosphere and Health - August 22, 2020 Category: Environmental Health Source Type: research

An integrated approach for analyzing air quality monitoring data: a case study in Hanoi, Vietnam
AbstractIn this research, we propose an integrated approach to retrieve the information of air quality monitoring data for air quality assessment. Used data is the hourly concentrations of PM10, PM2.5, SO2, NO, NO2, O3, and CO measured by an ambient air quality monitoring station in Hanoi, Vietnam, in the period of 2010 –2018. First, the dataset was preprocessed to remove outliers by a simple removing method. Then, the missing values were filled up using a deep learning technique. After that, the preprocessed data went through the process of analysis to infer the probability distributions. After the probability d ens...
Source: Air Quality, Atmosphere and Health - August 22, 2020 Category: Environmental Health Source Type: research

Our change of Co-Editor-in-Chief and why the journal ’s future is bright
(Source: Air Quality, Atmosphere and Health)
Source: Air Quality, Atmosphere and Health - August 22, 2020 Category: Environmental Health Source Type: research

Fluctuations in nighttime ground-level ozone concentrations during haze events in Malaysia
This study focused on O3 variations and the titration effects of NOx during nighttime at urban, industrial, sub-urban and background sites. Nighttime O3 concentration variations and the presence of high particles with an aerodynamic diameter of less than 10  μm (PM10) were examined because haze disturbs the photochemical reactions of O3. Hourly data on O3, NO2, NO and PM10 concentrations provided by the Air Quality Division of the Department of Environment were divided into two groups of daytime and nighttime and analysed. The maximum O3 concentrations during daytime were generally observed during noon. At nighttim...
Source: Air Quality, Atmosphere and Health - August 21, 2020 Category: Environmental Health Source Type: research

The association between COVID-19 deaths and short-term ambient air pollution/meteorological condition exposure: a retrospective study from Wuhan, China
AbstractThe emergence of coronavirus disease 2019 (COVID-19) has become a worldwide pandemic after its first outbreak in Wuhan, China. However, it remains unclear whether COVID-19 death is linked to ambient air pollutants or meteorological conditions. We collected the daily COVID-19 death number, air quality index (AQI), ambient air pollutant concentrations, and meteorological variables data of Wuhan between Jan 25 and April 7, 2020. The Pearson and Poisson regression models were used accordingly to understand the association between COVID-19 deaths and each risk factor. The daily COVID-19 deaths were positively correlated...
Source: Air Quality, Atmosphere and Health - August 15, 2020 Category: Environmental Health Source Type: research

Air pollution in Kenya: a review
This article provides an overview of published studies that report the concentrations of widespread ambient pollutants, outline major themes, and identify data gaps. This review reveals that since the 1980 ’s particulate matter (PM) concentrations in some Nairobi locations, such as the industrial area, have been at dangerously high levels. Almost all of the studies included show that PM concentrations in Nairobi violate the World Health Organization (WHO) guidelines. Moreover, black carbon (BC) conc entrations in Nairobi are among the highest in the world, indicating the need for cleaner vehicles in the city. There h...
Source: Air Quality, Atmosphere and Health - August 15, 2020 Category: Environmental Health Source Type: research

Fine particles as a public health indicator in Brazil: from monitoring to modeling
AbstractThe study of fine particles (PM2.5) and its relationship with health has not been much explored in Brazil. Only with Resolution CONAMA 491/2018 that PM2.5 was nationally considered a pollutant of interest, while the World Health Organization brings guidelines for its environmental concentration since 2006. PM2.5 monitoring in Brazil is still restricted to few Southeast municipalities. From Brazilian time series epidemiological studies that studied PM2.5 and its relationship with health, mainly due to respiratory causes, air quality modeling was mostly employed. This paper aims to survey epidemiological studies alre...
Source: Air Quality, Atmosphere and Health - August 15, 2020 Category: Environmental Health Source Type: research

Source apportionment of rainwater chemical composition in wet precipitation at Kelaniya in Sri Lanka
This study was conducted during the period from 2012 to 2014, and wet precipitation was analyzed for pH, conductivity, Na+, NH4+, K+, Mg2+, Ca2+, F−, Cl−, NO3−, SO42 −, Pb, Cu, Mn, Al, Zn, and Fe for a total of seventy-eight (78) samples. Volume-weighted average concentrations of the major ionic species present in precipitation samples were in the order of Na+> Ca2+> Cl−> SO42 −> NH4+> Mg2+> NO3−> K+> F−. Neutralization of the acidic species would take place due to the presence of NH4+ and CaCO3. When considering marine contribution, SO42 −/Na+, ...
Source: Air Quality, Atmosphere and Health - August 15, 2020 Category: Environmental Health Source Type: research

Attention of Nigerian newspapers to air pollution
This study examines how Nigerian newspapers pay attention to this deadly environmental problem in order to create awareness and arouse government attention to it. The study adopted the method of content analysis. One-year daily editions of three national newspapers from July 2016 to June 2017 were analysed. The newspapers are The Guardian, Daily Sun and Vanguard. The variables examined are the volume and the frequency of coverage, the genres of story used and the prominence given to air pollution stories. The result showed that air pollution was poorly reported by the newspapers. Air pollution reports represented 4.07% of ...
Source: Air Quality, Atmosphere and Health - August 13, 2020 Category: Environmental Health Source Type: research

Consequences of COVID-19 on the social isolation of the Chinese economy: accounting for the role of reduction in carbon emissions
AbstractThe main contribution of the present study to the energy literature is to explore the relationship between economic growth and pollution emission amidst globalization. In contrast to the existing studies, this research examines the effects of economic and social isolation as dimensions of globalization. The present paper allows underpinning the impact on the Chinese economic development of the isolation phenomenon as a consequence of coronavirus (COVID-19). To this end, annual time –frequency data is used to achieve the hypothesized claims. The study resolutions include (1) the existence of a long-run associa...
Source: Air Quality, Atmosphere and Health - August 13, 2020 Category: Environmental Health Source Type: research

Air pollution improvement and mortality rate during COVID-19 pandemic in India: global intersectional study
AbstractThis research was carried out using the open-source database system along with the continuous air quality monitoring station results from global data sets during the COVID-19 pandemic lockdown in India and the global. Our purpose of this research is to study the improvement of air quality and human mortality rates in countries worldwide during the COVID-19 pandemic lockdown. Worldwide air quality data were collected from>  12,000 continuous air quality monitoring stations on six continents covering 1000 major cities from over 100 countries. Here, we discussed the implementation of the open-source data set...
Source: Air Quality, Atmosphere and Health - August 12, 2020 Category: Environmental Health Source Type: research

Fluctuations in environmental pollutants and air quality during the lockdown in the USA and China: two sides of COVID-19 pandemic
This study aims to describe the variations in the environmental pollutants (CO, NO2, SO2, PM2.5 and PM10) with and without the lockdown period in the majorly hit states and provinces of the USA and China, respectively. Data during the first quarter year of 2019 and 2020 (lockdown period) was used in this study. Moreover, the effect of these pollutants on the pandemic spread was also studied. The results illustrated that the overall concentrations of CO, NO2 and PM2.5 were decreased by 19.28%, 36.7% and 1.10%, respectively, while PM10 and SO2 were increased by 27.81% and 3.81% respectively in five selected states of the USA...
Source: Air Quality, Atmosphere and Health - August 9, 2020 Category: Environmental Health Source Type: research

Investigation and analysis of climate comfort on people health tourism in Ardabil province, Iran
AbstractOne of the effective factors that affect human comfort and health is suitable for climatic conditions Therefore, the climate is an important part of environmental life in which entertainment and tourism are formed. The purpose of this study was to determine the calendar of the tourism areas of Ardabil province using the indicators of bioclimatic and geographic information system analysis. For this purpose, the climatic data including average daily temperature, average monthly minimum temperature, average maximum monthly temperature, average temperature, average dry temperature, relative wind speed and wind speed fr...
Source: Air Quality, Atmosphere and Health - August 9, 2020 Category: Environmental Health Source Type: research

Surface water formation on the natural surface under supersaturation: from local water balance to air pollutant deposition
AbstractHeterogeneous nucleation and subsequent growth of surface water occur on hydrophobic natural substrates under supersaturation; however, this basic physical relationship has been explained only empirically as yet. In order to derive a new method to determine supersaturation at the canopy –air interface, we considered the parameters that contribute to surface water formation (SWF) and examined their importance by field observations at an urban site in the period 2015–2017. We found that both the interfacial and vertical temperature differences ranged 1–3 K and that they were n ecessary but not ...
Source: Air Quality, Atmosphere and Health - August 8, 2020 Category: Environmental Health Source Type: research

Does the inflow of remittances and energy consumption increase CO 2 emissions in the era of globalization? A global perspective
This study investigates the impact of remittances, energy use, and globalization on CO2 emissions using a global sample of 97 countries during 1990-2016. Our findings based on robust system GMM indicate that remittances and energy use increases CO2 emissions, however, globalization reduces CO2 emissions. To capture the national difference, this study divides the global sample into  two sub-samples: first comprised of developed countries and second developing and emerging countries. Interestingly our findings are similar in both sub-samples. Further, our results are robust to various robustness checks, which ...
Source: Air Quality, Atmosphere and Health - August 7, 2020 Category: Environmental Health Source Type: research

Predicting the non-carcinogenic health hazards associated with emissions from developing coal-fired power plants in Payra, Bangladesh
This study involved simulation of pollutant concentration and evaluation of health risks due to emission from these power plants. Four pollutants, SO2, NOx, PM2.5, and PM10, were assessed for health risks under two scenarios: (a) scenario I, operation of Payra phase I and phase II power plants (expected by 2022); and (b) scenario II, cumulative operation of all 5 power plants. An air dispersion model has been used to investigate the pollutant dispersion and ground-level concentration at receptor grids over a 30  × 30-km model domain for a 1-year period. Hazard quotients (HQ) of the selected pollutants w...
Source: Air Quality, Atmosphere and Health - August 5, 2020 Category: Environmental Health Source Type: research