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https://www.readbyqxmd.com/read/29128772/intrinsic-and-extrinsic-factors-which-influence-metal-adsorption-to-road-dust
#1
Ayomi Jayarathne, Prasanna Egodawatta, Godwin A Ayoko, Ashantha Goonetilleke
The adsorption behaviour of metals deposited on road surfaces is a complex process and influenced by a range of factors common to the urban environment. However, all factors do not have the same level of importance. It is therefore important to identify the most crucial factors for accurate stormwater quality predictions and to implement effective stormwater pollution mitigation measures. Accordingly, this study investigated the extrinsic and intrinsic factors in terms of their degree of influence on the adsorption of individual metal cations to particulates...
November 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29121489/health-impacts-quantification-of-ambient-air-pollutants-using-airq-model-approach-in-hamadan-iran
#2
Farshad Bahrami Asl, Mostafa Leili, Yaser Vaziri, Soheila Salahshour Arian, Antonio Cristaldi, Gea Oliveri Conti, Margherita Ferrante
Iranian western cities, including Hamadan, have been experiencing Middle East Dust Storms (MEDS) phenomenon problems in recent years, so the air quality is getting worse every year in these cities. The aim of this study was to evaluate the human health impacts of criteria air pollutants including PM10, PM2.5, NO2, SO2, CO and O3 on the citizens of Hamadan using AirQ model software 2.2.3. Considering the determined baseline incidence (BI) and relative risk (RR) rate, the attributable proportion (AP) of deaths due to cardiovascular and respiratory mortality attributed to PM2...
November 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/29066201/insights-into-extinction-evolution-during-extreme-low-visibility-events-case-study-of-shanghai-china
#3
Zhen Cheng, Shuxiao Wang, Liping Qiao, Hongli Wang, Min Zhou, Xiao Fu, Shengrong Lou, Lina Luo, Jingkun Jiang, Changhong Chen, Xiaoliang Wang, Jiming Hao
Apportionment of ambient extinction coefficient is essential for quantifying the causes of visibility degradation. Previous studies focused on either seasonal or episode-average extinction coefficients. The extinction evolution during different types of low visibility events was still unclear and seldom investigated. In this study, hourly-resolution apportionment of ambient extinction coefficient, including dry extinction coefficient and hygroscopic portion, during three low visibility events (i.e., dust storm, autumn and winter haze) and one clear episode was retrieved through online measurement in Shanghai, China...
October 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29053862/a-study-of-the-radioactivity-in-the-dust-storm-event-of-april-2015-in-arabian-peninsula
#4
Zaid Q Ababneh, Anas M Ababneh, Sultan Alsagabi, Fahad I Almasoud
Gulf countries are often affected by dust storms which have a significant influence on the environment and public health. The present work examines the radioactivity content in the intense dust storm occurred over Gulf countries on 1 April 2015. The results showed that the average value of 137Cs in dust samples (±SD) is 14.4 ± 1.6 Bq/kg, which is almost two orders of magnitude larger than those in soil samples. 7Be was detected with a considerable amount only in dust samples. The activity concentrations of the natural radionuclides (234,238U, 228,230,232Th, 226,228Ra and 40K) in dust samples were found to be approximately two to three times higher than the corresponding values in soil samples, which is attributed to the abundance of the finest particle size in the dust samples...
October 19, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29029208/dust-storms-heart-attacks-and-protecting-those-at-risk
#5
Mary B Rice, Murray A Mittleman
No abstract text is available yet for this article.
November 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28993926/effects-of-dust-on-forest-tree-health-in-zagros-oak-forests
#6
A Moradi, K Taheri Abkenar, M Afshar Mohammadian, N Shabanian
Dust is one of the most devastating factors for the environment threatening all animal and plant species. In many regions, the ecological and economic impact of microdust on scarce species is critical. In the western region of Iran, the Zagros forests have been exposed to dust storms for many years. In this study, the effect of dust on oak trees, the most important trees of Zagros forests, is investigated. For this purpose, 3-year-old seedlings of three species of oak trees under natural conditions were exposed to dust during spring and summer months...
October 10, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28932981/the-spatial-distribution-and-accumulation-characteristics-of-heavy-metals-in-steppe-soils-around-three-mining-areas-in-xilinhot-in-inner-mongolia-china
#7
Yongfei Gao, Honglin Liu, Guixiang Liu
Metal deposition has become a major environmental problem in China due to its adverse effects on human and ecosystem health, particularly in Inner Mongolia, where frequent dust storms (due to steppe degradation and desertification) and soil pollution (associated with the increasing mining activities) have occurred in recent decades. To assess spatial distribution of heavy metals and the influences of mining activities on geochemical behavior of heavy metals in soils, soil samples with depth of 0-10, 10-20, and 20-30 cm at each site were collected from different directions in the vicinity of three mines (coal mine, gold mine, and fluorite mine) in a typical steppe zone of Inner Mongolia, China...
November 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28828754/elemental-and-carbonaceous-characterization-of-tsp-and-pm10-during-middle-eastern-dust-med-storms-in-ahvaz-southwestern-iran
#8
Abbas Shahsavani, Maryam Yarahmadi, Mostafa Hadei, Mohammad Hossein Sowlat, Kazem Naddafi
Middle Eastern dust (MED) storms carry large amounts of dust particles to the Southern and Western cities of Iran. This study aimed to characterize the elemental and carbonaceous composition of total suspended particles (TSP) and PM10 in Ahvaz, Iran. TSP and PM10 samples were collected using two separate high-volume air samplers. The sampling program was performed according to EPA guidelines and resulted in 72 samples. Twenty-eight elements and two carbonaceous components in TSP and PM10 were measured. Over the entire study period, the mean concentration (SD) of TSP and PM10 was 1548...
August 21, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28783496/the-transport-of-polycyclic-aromatic-hydrocarbons-during-rainfall-and-snowmelt-in-contrasting-landscapes
#9
Abha Parajulee, Ying Duan Lei, Ajitha Kananathalingam, David S McLagan, Carl P J Mitchell, Frank Wania
Though it has been established that stream concentrations of polycyclic aromatic hydrocarbons (PAHs) in urban watersheds can be much greater than those in less developed watersheds, knowledge of transport mechanisms is lacking, particularly in temperate, Northern climates with seasonal snow packs. We combine high-resolution stream water sampling with air, suspended solid and stream flow monitoring to investigate the source to stream transport of PAHs during rainfall and snowmelt in paired watersheds with contrasting land use...
November 1, 2017: Water Research
https://www.readbyqxmd.com/read/28772999/aging-and-curing-temperature-effects-on-compressive-strength-of-mortar-containing-lime-stone-quarry-dust-and-industrial-granite-sludge
#10
Muhammad Nasir Amin, Kaffayatullah Khan, Muhammad Umair Saleem, Nauman Khurram, Muhammad Umar Khan Niazi
In this study, the researchers investigated the potential use of locally available waste materials from the lime stone quarry and the granite industry as a partial replacement of cement. Quarry sites and granite industry in the eastern province of Saudi Arabia produces tons of powder wastes in the form of quarry dust (QD) and granite sludge (GS), respectively, causing serious environmental problems along with frequent dust storms in the area. According to ASTM C109, identical 50-mm3 specimens were cast throughout this study to evaluate the compressive strength development of mortars (7, 28 and 91 days) containing these waste materials...
June 11, 2017: Materials
https://www.readbyqxmd.com/read/28742415/air-and-dust-borne-fungi-in-indoor-and-outdoor-home-of-allergic-patients-in-a-dust-storm-affected-area
#11
Elham Shabankarehfard, Afshin Ostovar, Shokrollah Farrokhi, Behrouz Naeimi, Sasan Zaeri, Shahrokh Nazmara, Mozhgan Keshtkar, Farzaneh Sadeghzadeh, Sina Dobaradaran
Despite the recent increases in fungi-induced allergic diseases, there is no report yet in the region of the Persian Gulf on concentration levels of fungi in relationship with health state. Therefore, our aim was to measure fungi prevalence as well as to evaluate the relationships between air- and dust-borne fungal genera and allergic diseases. A matched case-control study was carried out including 45 allergic cases and 45 age- and gender-matched controls for each individual. Indoor and outdoor dust and indoor air samples were collected from participant homes during May to October 2015...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28738173/simulating-the-meteorology-and-pm10-concentrations-in-arizona-dust-storms-with-the-weather-research-and-forecasting-model-with-chemistry-wrf-chem
#12
Peter Hyde, Alex Mahalov, Jialun Li
Nine dust storms in south-central Arizona, USA were simulated with the Weather Research and Forecasting with Chemistry model (WRF-Chem) at 2-km resolution. The windblown dust emission algorithm was the Air Force Weather Agency model. In comparison with ground-based PM10 observations, the model unevenly reproduces the dust storm events. The model adequately estimates the location and timing of the events, but it is unable to precisely replicate the magnitude and timing of the elevated hourly concentrations of particles 10 microns and smaller ([PM10])...
July 24, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28725442/identification-of-dust-storm-origin-in-south-west-of-iran
#13
Parya Broomandi, Bahram Dabir, Babak Bonakdarpour, Yousef Rashidi
BACKGROUND: Deserts are the main sources of emitted dust, and are highly responsive to wind erosion. Low content of soil moisture and lack of vegetation cover lead to fine particle's release. One of the semi-arid bare lands in Iran, located in the South-West of Iran in Khoozestan province, was selected to investigate Sand and Dust storm potential. METHODS: This paper focused on the metrological parameters of the sampling site, their changes and the relationship between these changes and dust storm occurrence, estimation of Reconaissance Drought Index, the Atterberg limits of soil samples and their relation with soil erosion ability, the chemical composition, size distribution of soil and airborne dust samples, and estimation of vertical mass flux by COMSALT through considering the effect of saffman force and interparticle cohesion forces during warm period (April-September) in 2010...
2017: Journal of Environmental Health Science & Engineering
https://www.readbyqxmd.com/read/28717135/projection-of-american-dustiness-in-the-late-21-st-century-due-to-climate-change
#14
Bing Pu, Paul Ginoux
Climate models project rising drought risks over the southwestern and central U.S. in the twenty-first century due to increasing greenhouse gases. The projected drier regions largely overlay the major dust sources in the United States. However, whether dust activity in U.S. will increase in the future is not clear, due to the large uncertainty in dust modeling. This study found that changes of dust activity in the U.S. in the recent decade are largely associated with the variations of precipitation, soil bareness, and surface winds speed...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28661464/road-environments-impact-of-metals-on-human-health-in-heavily-congested-cities-of-poland
#15
Ewa Adamiec
Road dust as a by-product of exhaust and non-exhaust emissions can be a major cause of systemic oxidative stress and multiple disorders. Substantial amounts of road dust are repeatedly resuspended, in particular at traffic lights and junctions where more braking is involved, causing potential threat to pedestrians, especially children. In order to determine the degree of contamination in the heavily traffic-congested cities of Poland, a total of 148 samples of road dust (RD), sludge from storm drains (SL) and roadside soil (RS) were collected...
June 29, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28651090/spatio-temporal-variability-of-particulate-matter-in-the-key-part-of-gansu-province-western-china
#16
Qingyu Guan, Ao Cai, Feifei Wang, Liqin Yang, Chuanqi Xu, Zeyu Liu
To investigate the spatial and temporal behaviors of particulate matter in Lanzhou, Jinchang and Jiayuguan during 2014, the hourly concentrations of PM2.5 and PM10 were collected from the Ministry of Environmental Protection (MEP) in this study. The analysis indicated that the mean annual PM10 (PM2.5) concentrations during 2014 were 115 ± 52 μg/m(3) (57 ± 28 μg/m(3)), 104 ± 75 μg/m(3) (38 ± 22 μg/m(3)) and 114 ± 72 μg/m(3) (32 ± 17 μg/m(3)) in Lanzhou, Jinchang and Jiayuguan, respectively, all of which exceeded the Chinese national ambient air quality II standards for PM...
November 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28640687/dust-exposure-and-coccidioidomycosis-prevention-among-solar-power-farm-construction-workers-in-california
#17
Gail L Sondermeyer Cooksey, Jason A Wilken, Jennifer McNary, Debra Gilliss, Dennis Shusterman, Barbara L Materna, Duc J Vugia
OBJECTIVES: To investigate if work activities, dust exposure, and protection measures were associated with a 2011 to 2014 coccidioidomycosis outbreak among workers constructing 2 solar farms in California. METHODS: In 2013, we mailed self-administered questionnaires to employees who were onsite at the solar farms where the outbreak occurred to identify cases of clinical coccidioidomycosis and compare with asymptomatic workers by using multivariate logistic regression...
August 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28635552/temporal-variation-of-fine-and-coarse-particulate-matter-sources-in-jeddah-saudi-arabia
#18
Chris C Lim, George D Thurston, Magdy Shamy, Mansour Alghamdi, Mamdouh Khoder, Abdullah M Mohorjy, Abdulrahman K Alkhalaf, Jason Brocato, Lung Chi Chen, Max Costa
This study provides the first comprehensive analysis of the seasonal variations and weekday/weekend differences in fine (PM2.5) and coarse (PM2.5-10) particulate matter mass concentrations, elemental constituents, and potential source origins in Jeddah, Saudi Arabia. Air quality samples were collected over one year, from June 2011 to May 2012 at a frequency of three times per week, and analyzed. The average mass concentrations of PM2.5 (21.9 μg/m(3)) and PM10 (107.8 μg/m(3)) during the sampling period exceeded the recommended annual average levels by the World Health Organization (WHO) for PM2...
June 21, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28631126/a-comparative-study-of-hospital-admissions-for-respiratory-diseases-during-normal-and-dusty-days-in-iran
#19
Sahar Geravandi, Pierre Sicard, Yusef Omidi Khaniabadi, Alessandra De Marco, Ali Ghomeishi, Gholamreza Goudarzi, Mohammad Mahboubi, Ahmad Reza Yari, Sina Dobaradaran, Ghasem Hassani, Mohammad Javad Mohammadi, Shahram Sadeghi
During the last century, most of people around the world moved from communicable to non-communicable diseases, mainly due to air pollution. Air pollutants and dust storm increase risk of morbidity, for cardiovascular and respiratory diseases, and increase the number of deaths. The city of Ahvaz is considered as the focal point of air pollution and dust storm in Iran. The aim of this study was to determine the number of Hospital Admission Respiratory Disease (HARD) including asthma attacks, acute bronchitis and chronic obstructive pulmonary disease attributed to PM10 by a descriptive study during normal and dust event days in Ahvaz during the time period 2010-2012...
June 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28599141/chinese-yellow-dust-and-korean-infant-health
#20
Duha T Altindag, Deokrye Baek, Naci Mocan
Naturally-occurring Yellow Dust outbreaks, which are produced by winds flowing to Korea from China and Mongolia, create air pollution. Although there is a seasonal pattern of this phenomenon, there exists substantial variation in its timing, strength, and location from year to year. To warn residents about air pollution in general, and about these dust storms in particular, Korean authorities issue different types of public alerts. Using birth certificate data on more than 1.5 million babies born between 2003 and 2011, we investigate the impact of air pollution, and the avoidance behavior triggered by pollution alerts on various birth outcomes...
August 2017: Social Science & Medicine
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