Although extensive studies were conducted for water soluble inorganic ions (WSIIs) in PM2.5, most of them concentrated on developed cities while limited studies in mountainous cities. In this study, daily PM2.5 was sampled for a year (from Sept. 1, 2017 to Aug. 31, 2018) to comprehensively investigate the characteristics of WSIIs in a typical mountainous city, Chongqing. The results showed that air

Mechanized conservation agriculture, mainly no-till (NT) based production systems, is of utmost importance for the conservation of natural resources and restoration of the environmental quality. However, the impact of machine-induced compaction on the methane (CH4) uptake in the absence of the growing crop is not known. Emission of CH4 from soil to the atmosphere through anthropogenic activities plays

The UK may be required to expand its bioenergy production in order to make a significant contribution towards the delivery of its ‘net zero’ greenhouse gas emissions target by 2050. However, some trees grown for bioenergy are emitters of volatile organic compounds (VOCs), including isoprene and terpenes, precursors in the formation of tropospheric ozone, an atmospheric pollutant, which require assessment

Air quality in urban environments is directly related to structural aspects of streets and traffic variables, justifying the need for local assessments. This information is crucial as input to obtain accurate and reliable statistical modelling of the implementation of different mitigation scenarios aiming to improve the local air quality management. The present study intended to assess temporal trends

Each year, considerable levels of dust particles coming from arid regions of the earth contribute to the atmosphere. Because dust has serious environmental and human health effects, predictions of dust concentrations and their contribution to PM surface concentrations are essential for atmospheric research and the implementation of air quality programs and rules. This study aims to assess dust contributions

Characterizing the relationship between signal timing and particulate matter (PM) is important for a sustainable traffic signal control and accurate exposure assessment at emission hotspot locations. The impact of traffic signal timing and meteorological variables on size-resolved PM in the 0.25–10 μm range at the signalized intersection was investigated. The PMs, particle number concentrations (PNCs)

The Lewis-Clark Valley is a rural area that includes the cities of Lewiston, Idaho, Clarkston, Washington and the surrounding areas. The largest industry in the Lewis-Clark Valley is a pulp paper mill located in Lewiston which emits particulate matter and odorous sulfur air pollutants. This study analyzed the Lewis-Clark Valley air composition and seasonal, temporal and spatial variations of volatile

Poor indoor air quality (IAQ) can cause several respiratory diseases and symptoms. In this study, IAQ of 121 homes located in 3 different towns of Çanakkale, Turkey was monitored throughout a year. Target air pollutants were particulate matter, volatile organic compounds (VOCs), bioaerosols, and Carbon dioxide (CO2), as well as air temperature and humidity. Moreover, pulmonary functions of the occupants

This work focuses on the concentration and health effects of volatile organic compounds (VOCs) at an intercity bus terminal in Taipei City, Taiwan. In this study, 36 VOCs were detected in the bus terminal, including 19 hazardous air pollutants. The measurement results indicate that ethanol, acetone, toluene, and methyl tert-butyl ether (MTBE) were the main VOCs dominating this bus terminal. Moreover

This comprehensive study aims to examine the relationships between ambient air quality (AAQ) and respiratory health of the participants residing in three different towns of Çanakkale city, Turkey between August 2013 and 2014. AAQ measurements for bioaerosols, volatile organic compounds (VOCs), total particulate matter (PM) count, carbon dioxide (CO2), and carbon monoxide (CO) were performed and monthly

Ambient air pollution kills over four million people every year globally. Improving air quality presents a complex problem for governments as emissions are produced from a wide range of sources and tend to cross boundaries. To understand the challenge of transboundary air pollution transfer, we use a detailed emissions inventory and a source-oriented chemical transport model to explore state-to-state

In recent years, the frequent occurrence of haze and fog events in East and Central China has caused a serious reduction in atmospheric visibility and had a huge impact on human health. Based on the relative humidity, visibility and PM2.5 concentration, the occurrence frequencies of haze as well as the spatial and temporal variations of fog, haze and mist in China from 2013 to 2018 were analyzed. The

The real-world emission factors (EFs) and emission performance of bi-fuel (CNG/GAS) vehicles have been seriously investigated by the emission scientists and urban planners. In the present study, we propose an almost new practical methodology and perform on-road experiments on 60 bi-fuel vehicles to discuss the impacts of vehicle speed, fuel type, usage, and accumulated mileage on the CO, HC, and NOx

Aerosol particles have been shown to trigger cardiovascular and respiratory diseases in populations living in polluted regions, depending on their size and composition. Although fine aerosol particles have been found to reach the lungs and the blood stream, their acute effects are related to the fraction of ultrafine aerosol particles (i.e., UFPs, d < 0.1 μm). In the present study, the concentration

In this study, the ambient benzene concentrations were measured in 7 air quality monitoring stations in Greece. The pollutant measurements were continuously being collected from the air quality monitoring network of the country through a calendar year (from 1st January 2016 to 31st December 2016). The monitoring stations were classified as Urban Traffic, Urban-Industrial, Suburban-Industrial and Urban

Comprehensive air monitoring of hazardous air pollutants (HAPs) was conducted at four residential sites (three in the town and one in a suburb) in Pohang, where Korea's largest iron-steel industrial complex is located. The objectives of this study were to evaluate the occurrence and spatiotemporal distributions of HAPs and to identify important HAPs based on a health risk assessment. The 130 HAPs that

The Guanzhong Basin (GZB) has exhibited an obvious air pollution zone in the cold season in recent years. The variability of haze days combined with dynamic circulation was investigated using meteorological observation data and ERA-5 reanalysis data. The results show that large-scale and mountain-valley circulation, local meteorological factors and mountains affected the variability of severe haze

An air pollution process in Jiangsu Province on December 22–23, 2016 is discussed by analyzing various data set, including the meteorological observation data, the reanalysis data from National Centers for Environmental Prediction (NCEP), the Air Quality Index (AQI), the PM2.5 and PM10 concentrations data, and the airflow backward trajectory model of National Oceanic and Atmospheric Administration

The mass concentrations and content of water-soluble anions (Cl−, NO3−, SO42−) and cations (Na+, NH4+, K+, Mg2+, Ca2+) in the PM2.5 particle fraction were measured, and an investigation of their relationship and their contribution to the total PM2.5 mass measured was conducted at an urban background site as part of the Croatian monitoring network for air quality located in Rijeka, Croatia. Daily samples

This study investigates the relationship between particulate matter that have an aerodynamic diameter less than 10 diameter (PM10) and air temperature (T) in the Caribbean basin. To conduct this analysis, eleven years of daily time series recorded in Guadeloupe archipelago were used. Firstly, the stationarity threshold of both time series is quantified using the infinite moving average. Then, statistical

Anthropogenic activities such as mining, metal extraction from ores and smelting are important sources of environmental pollution with toxic elements. Knowing the spatial distribution of soil pollution around these sources is important for dealing with the risk situation. The objective of this study was to determine factors and processes dominating the spatial distribution of copper (Cu), and a variety

Many studies have shown that aerosols have an important effect on the cloud reflectance of solar radiation and cloud lifetime, however, the effect of aerosols on the cloud development might be over- or under-estimated without considering the meteorological conditions. In this study, the effect of aerosol optical depth (AOD) on low warm cloud development (cloud fraction (CF) and cloud top pressure (CTP)

With China's economic development, air pollution has become increasingly serious. Studying the concentration of PM2.5, as the main component of haze, is the key to control air quality. Extent research lacks spatiotemporal correlations and full regional coverage. Therefore, a fine-grained prediction method was developed for continuous prediction of station-specific and regional PM2.5 concentrations

In this study, the combination of multiple satellite data was used to improve the assessments of aerosol properties including the aerosol optical depth, Angstrom exponent, UV aerosol index, and single scattering albedo over a semi-arid urban area during the period from 2008 to 2017. The data sets were derived from MODIS and OMI. The critical threshold values for each of the aerosol properties have

Fine particulate matter is one of the major air pollutants in urban areas, which adversely affects people's health and is considered as a serious threat to the society. Effective prediction of this pollutant can provide information for sensitive people to avoid or reduce outdoor activities and on the other hand can help regulators for efficient decision-making related to precautionary measures. This

In this study, PM2.5-bound carbonaceous compounds, including organic carbon (OC), elemental carbon (EC), water-soluble ionic species (WSIS), and polycyclic aromatic hydrocarbons (PAHs) in the ambient air of Bangkok were analysed. The mean PM2.5 concentration was 77.0 ± 21.2 μg m−3, while the average concentrations of OC, and EC were 8.03 ± 4.02, and 2.62 ± 1.49 μg m−3, respectively. The relatively

Total suspended particulate (TSP) samples were collected in the atmosphere of Bolu Mountain Highway Tunnel located on the axis of Edirne-Istanbul-Ankara on the main artery of Turkey, by using PUF samplers between 24 and June 29, 2018. Thirty-five major and trace metals, 11 water-soluble anions and cations, and OC and EC concentrations were determined at the entrance and the exit of the tunnel. Emission

Forecasting the Ozone concentration is a substantial process in many important environmental issues such air pollution management, risk assessment, public health, and global warming. Early and accurate prediction of Ozone is very significant for efficient monitoring of pollution towards constituting advanced early alarm systems. In this study, wavelet transform (WT) approach was applied to handle input

Precipitation chemistry is important for understanding atmospheric chemistry and transportation mechanism for a region. Therefore, 6-h rain samples were collected manually on the Black Sea Region of Turkey between March 2019 and May 2019. Totally, 21 wet deposition samples were collected in 12 rainy days. The collected rain samples were analyzed by ion chromatography for ions, including Cl−, NO2−,

An air quality monitoring network (AQMN) having the ability to provide high spatial resolution real-time information is one of the key tools for developing management strategies for air quality improvement. National Environmental Engineering Research Institute (CSIR-NEERI) has deployed a Sensor-based Wireless Air Quality Monitoring Network (SWAQMN) to monitor real-time particulate matter (PM10 and

Radiation and aerosols are essential to climate change but are not well reported or understood over the Tibetan Plateau (TP) due to the scarcity of observational data from this unique geographical location. This study analyzed the characteristics of radiation and aerosols and evaluated satellite products over the TP by using ground-based measurements from an atmospheric campaign at Qaidam during the

The seasonal variation of fine carbonaceous aerosol was evaluated in an urban traffic site in Istanbul. PM2.5 samples were collected on selected days during four seasons between Jan 2017–Jan 2018. Daily PM2.5 concentrations were obtained experimentally by the gravimetric method in Beşiktaş, while hourly concentrations were obtained from the Air Quality Monitoring Network of Istanbul in Çatladıkapı

This study investigates the origin and background atmospheric mechanisms that cause high PM10 concentrations in Istanbul, Turkey. High-PM10 values in Besiktas are defined as days in which the 24-h mean PM10 exceed 100 μgm−3 during the period 2007–2017. As a consequence of the application of Ward's minimum clustering technique to HYSPLIT 72 h backward trajectory, mainly four different clusters, which

A recently developed open source tool kit named the Trajectory based Potential Source Apportionment (TraPSA) was used to identify the sources of respirable particulates at Kochi, India. Using 24-h average particulate matter data from samples collected at five regulatory monitoring stations over the five-year period from January 2011 to October 2016, local and regional scale analyses were made. Concentration

Air pollution is a crucial concern which impacts human health, agricultural harvests, forestry, animals as well as the environment. Indigenous environmental or health organizations regularly make daily air contamination predictions for public awareness and for use in making decisions concerning reduction methods in addition to the management air quality. Predictions are customarily based on statistical

Traffic-related emissions are the main sources of certain air pollutants that affect large number of people in many city centers. Because of this fact, quantification of traffic-related emissions and their dispersion modeling are required to determine human exposure to these pollutants. In this study, the most populated Ortahisar district of Trabzon, a city located in the Eastern Black Sea region of

Epidemiological studies have linked exposure to heavy metals and increased blood pressure (BP). We conducted a repeated measures study to examine the associations between airborne heavy metals and BP, and we looked at effect modification by participant characteristics. We assessed blood cadmium (B–Cd), lead (B–Pb), and mercury (B–Hg), and studied measurements of systolic (SBP) and diastolic (DBP) blood

The goal of the present work was to investigate the seasonal variations of organochlorine pesticide (OCP) levels in Bursa, Turkey. The sampling site was a campus and considered as a semi-rural site. Atmospheric OCPs in the particulate and gas phases were measured separately during night and day time periods. The average of the total concentrations was determined as 599 ± 194 pg/m3 and on average 65%

This study evaluated and compared the carcinogenic risks due to inhalation exposure to particulate matter with an aerodynamic diameter below 10 μm (PM10) during dust and normal days in Ahvaz, Iran. PM10 was sampled every 6 day during a one-year period, with additional sampling during dust episodes (total = 84). The concentrations of arsenic, cadmium, chromium, nickel, and lead were determined using

In Turkey, Southeastern Anatolia region is the highest in terms of solar radiation level. However, the provinces in the region are subject to Particulate Matter (PM) coming from the Sahara desert, the Syrian Desert and the Arabian Desert by atmospheric transport. The daily limit of PM10 and PM2.5 set by WHO for health is often exceeded in Sanliurfa. PM10 and PM2.5 pollutants also accumulate on the

Aerosols released into the atmosphere from anthropogenic sources and natural events affect human health, reduce visibility, and alter Earth's radiation budget. Aerosol Optical Depth (AOD) is a quantitative estimate of the amount of aerosol present in the atmosphere, and it can be used as a proxy for surface particulate matters. The AERONET is a network of ground-based sun photometers, providing globally

The present study is primarily aimed to establish a detailed exhaustive emission inventory of urban motor vehicles in a medium-sized city, i.e. Isfahan. The International Vehicle Emission (IVE) model was utilized to estimate the motor vehicle Emission Factors (EFs) in different areas of Isfahan. IVE was adjusted using the results obtained by on-board real-world EF measurements. A high resolution 1

Particulate matter (PM), emitted during agricultural activities, could be a source for the atmospheric dispersal of pathogenic or antibiotic resistant bacteria when agricultural fields are fertilized with contaminated manure. The use of contaminated bedding material from chicken breeding as farmyard manure can initiate a releasing process for resistant bacteria into the environment. In this study,

This work investigates the spatial and temporal variability of atmospheric ammonia concentrations in the Lombardy region in Northern Italy, where its continuous measurement at hourly resolution began in 2007 at monitoring sites representative of three different land use areas (urban, rural, and mountain locations). Ammonia concentration data have been jointly analyzed with wind direction and speed

With the growing population and rapidly developing industrialization in Turkey, energy demand is also increasing. The majority of the energy is produced using imported products, which increase the current account deficit in Turkey. The use of coal from domestic sources are encouraged for economic reasons. One of the coal (lignite) fueled thermal power plants established for this purpose is operating

Few studies of volatile organic compounds (VOCs) near oilfields have been performed. Continuous online measurements of 102 VOC species were made for 1 year in Kuytun city (northwestern China), near the Karamay and Tuha oilfields. The total VOC (TVOC) concentrations were high (mean 45.6 ppbv, range 21.9–86.1 ppbv). Alkanes, alkenes, nitrogen- and oxygen-containing VOCs, acetylene, halohydrocarbons,

The Chinese government has already been aware of NOx emissions because they are mainly responsible for a complex air pollution situation in China. The main aim of this research is to disclose the temporal variations and the spatial patterns of NOx emissions of Chinese provinces, and then analyze reduction potentials. The main findings are as follows. (1) From 2006, the total NOx emissions in China

Low- and middle-income countries (LMICs) often lack the necessary tools, guidance, and capacity for compiling an emission inventory (EI) for air pollutants. A reliable EI is an important prerequisite for the identification of key emissions sources, as an input to modelling atmospheric transport and impacts of air pollutants, and the identification of appropriate mitigation policies. The publicly-available