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https://www.readbyqxmd.com/read/28635552/temporal-variation-of-fine-and-coarse-particulate-matter-sources-in-jeddah-saudi-arabia
#1
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
#2
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
#3
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...
May 15, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28573562/hospital-admissions-in-iran-for-cardiovascular-and-respiratory-diseases-attributed-to-the-middle-eastern-dust-storms
#4
Yuef Omidi Khaniabadi, Roberto Fanelli, Alessandra De Marco, Seyed Mohammad Daryanoosh, Itai Kloog, Philip K Hopke, Gea Oliveri Conti, Margherita Ferrante, Mohammad Javad Mohammadi, Ali Akbar Babaei, Hassan Basiri, Gholamreza Goudarzi
The main objective of this study was to assess the possible effects of airborne particulate matter less than 10 μm in diameter (PM10) from the Middle Eastern Dust (MED) events on human health in Khorramabad (Iran) in terms of estimated hospital admissions (morbidity) for cardiovascular diseases (HACD) and for respiratory diseases (HARD) during the period of 2015 to 2016. The AirQ program developed by the World Health Organization (WHO) was used to estimate the potential health impacts to daily PM10 exposures...
June 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28551883/chemical-fractionation-and-mobility-of-traffic-related-elements-in-road-environments
#5
Ewa Adamiec
Due to considerable progress in exhaust control emission technology and extensive regulatory work regarding this issue, non-exhaust sources of air pollution have become a growing concern. This research involved studying three types of road environment samples such as road dust, sludge from storm drains and roadside soil collected from heavily congested and polluted cities in Poland (Krakow, Warszawa, Opole and Wroclaw). Particles below 20 µm were examined since it was previously estimated that this fine fraction of road dust is polluted mostly by metals derived from non-exhaust sources of pollution such as brake linings wear...
May 27, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28487836/allergic-conjunctivitis-in-asia
#6
REVIEW
Bernard Yu-Hor Thong
Allergic conjunctivitis (AC), which may be acute or chronic, is associated with rhinitis in 30%-70% of affected individuals, hence the term allergic rhinoconjunctivitis (AR/C). Seasonal and perennial AC is generally milder than the more chronic and persistent atopic and vernal keratoconjunctivitis. Natural allergens like house dust mites (HDM), temperate and subtropical grass and tree pollen are important triggers that drive allergic inflammation in AC in the Asia-Pacific region. Climate change, environmental tobacco smoke, pollutants derived from fuel combustion, Asian dust storms originating from central/north Asia and phthalates may also exacerbate AR/C...
April 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28475960/health-risk-assessment-of-exposure-to-the-middle-eastern-dust-storms-in-the-iranian-megacity-of-kermanshah
#7
G Goudarzi, S M Daryanoosh, H Godini, P K Hopke, P Sicard, A De Marco, H D Rad, A Harbizadeh, F Jahedi, M J Mohammadi, J Savari, S Sadeghi, Z Kaabi, Y Omidi Khaniabadi
OBJECTIVE: This study assessed the effects of particulate matter (PM), equal or less than 10 μm in aerodynamic diameter (PM10), from the Middle-Eastern Dust events on public health in the megacity of Kermanshah (Iran). STUDY DESIGN: This study used epidemiological modeling and monitored ambient air quality data to estimate the potential PM10 impacts on public health. METHODS: The AirQ2.2.3 model was used to calculate mortality and morbidity attributed to PM10 as representative of dust events...
July 2017: Public Health
https://www.readbyqxmd.com/read/28468126/airborne-dust-absorption-by-semi-arid-forests-reduces-pm-pollution-in-nearby-urban-environments
#8
Daphna Uni, Itzhak Katra
Dust storms are a major source of global atmospheric particulate matter (PM), having significant impacts on air pollution and human health. During dust storms, daily averages of atmospheric PM concentrations can reach high levels above the World Health Organization (WHO) guideline for air quality. The objective of this study was to explore the impact of forests on PM distribution following dust events in a region that is subjected to frequent dust storms (Northern Negev, Israel). Dust was measured in a forest transect including urban environments that are nearby the forest and at a distal location...
November 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28432864/plutonium-in-the-atmosphere-a-global-perspective
#9
REVIEW
P Thakur, H Khaing, S Salminen-Paatero
A number of potential source terms have contributed plutonium isotopes to the atmosphere. The atmospheric nuclear weapon tests conducted between 1945 and 1980 and the re-entry of the burned SNAP-9A satellite in 1964, respectively. It is generally believed that current levels of plutonium in the stratosphere are negligible and compared with the levels generally found at surface-level air. In this study, the time trend analysis and long-term behavior of plutonium isotopes ((239+240)Pu and (238)Pu) in the atmosphere were assessed using historical data collected by various national and international monitoring networks since 1960s...
April 19, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28422476/origin-dependent-variations-in-the-atmospheric-microbiome-community-in-eastern-mediterranean-dust-storms
#10
Daniella Gat, Yinon Mazar, Eddie Cytryn, Yinon Rudich
Microorganisms carried by dust storms are transported through the atmosphere and may affect human health and the functionality of microbial communities in various environments. Characterizing the dust-borne microbiome in dust storms of different origins or that followed different trajectories provides valuable data to improve our understanding of global health and environmental impacts. We present a comparative study on the diversity of dust-borne bacterial communities in dust storms from three distinct origins (North Africa, Syria and Saudi Arabia) and compare them with local bacterial communities sampled on clear days, all collected at a single location: Rehovot, Israel...
May 5, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28420157/the-effects-of-pm2-5-from-asian-dust-storms-on-emergency-room-visits-for-cardiovascular-and-respiratory-diseases
#11
Ssu-Ting Liu, Chu-Yung Liao, Cheng-Yu Kuo, Hsien-Wen Kuo
A case-crossover study examined how PM2.5 from Asian Dust Storms (ADS) affects the number of emergency room (ER) admissions for cardiovascular diseases (CVDs) and respiratory diseases (RDs). Our data indicated that PM2.5 concentration from ADS was highly correlated with ER visits for CVDs and RDs. The odds ratios (OR) increased by 2.92 (95% CI: 1.22-5.08) and 1.86 (95% CI: 1.30-2.91) per 10 µg/m³ increase in PM2.5 levels, for CVDs and RDs, respectively. A 10 µg/m³ increase in PM2.5 from ADSs was significantly associated with an increase in ER visits for CVDs among those 65 years of age and older (an increase of 2...
April 16, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28409432/short-term-effects-of-air-pollution-on-daily-hospital-admissions-for-cardiovascular-diseases-in-western-china
#12
Yuxia Ma, Haipeng Zhang, Yuxin Zhao, Jianding Zhou, Sixu Yang, Xiaodong Zheng, Shigong Wang
Controlling the confounding factors on cardiovascular diseases, such as long-time trend, calendar effect, and meteorological factors, a generalized additive model (GAM) was used to investigate the short-term effects of air pollutants (PM10, SO2, and NO2) on daily cardiovascular admissions from March 1st to May 31st during 2007 to 2011 in Lanzhou, a heavily polluted city in western China. The influences of air pollutants were examined with different lag structures, and the potential effect modification by dust storm in spring was also investigated...
April 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28382377/health-benefits-of-pm10-reduction-in-iran
#13
Mohammad Bagherian Marzouni, Mahsa Moradi, Alireza Zarasvandi, Shayan Akbaripoor, Mohammad Sadegh Hassanvand, Abdolkazem Neisi, Gholamreza Goudarzi, Mohammad Javad Mohammadi, Reza Sheikhi, Majid Kermani, Mohammad Shirmardi, Abolfazl Naimabadi, Moeen Gholami, Saeed Pourkarim Mozhdehi, Mehdi Esmaeili, Kian Barari
Air pollution contains a complex mixture of poisonous compounds including particulate matter (PM) which has wide spectrum of adverse health effects. The main purpose of this study was to estimate the potential health impacts or benefits due to any changes in annual PM10 level in four major megacities of Iran. The required data of PM10 for AirQ software was collected from air quality monitoring stations in four megacities of Iran. The preprocessing was carried out using macro coding in excel environment. The relationship between different presumptive scenarios and health impacts was determined...
April 5, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28357800/comparison-of-normal-and-dusty-day-impacts-on-fractional-exhaled-nitric-oxide-and-lung-function-in-healthy-children-in-ahvaz-iran
#14
Abdolkazem Neisi, Mehdi Vosoughi, Esmaeil Idani, Gholamreza Goudarzi, Afshin Takdastan, Ali Akbar Babaei, Kambiz Ahmadi Ankali, Sadegh Hazrati, Maryam Haddadzadeh Shoshtari, Iman Mirr, Heidar Maleki
Children are the vulnerable group at risk of adverse health effects related to air pollution due to dust storm in Ahvaz. The purpose of this study was to compare the values of fractional exhaled nitric oxide (FENO) and lung functions as parameters of adverse health effects of particulate matter (PM) in dusty and normal (non-dusty) days in elementary schoolchildren. The study was conducted among elementary school students in Ahvaz. The healthy elementary schoolchildren (N = 105) were selected from different districts for FENO and lung function sampling during the dusty and normal days...
May 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28347611/ambient-particulate-matter-and-carbon-monoxide-at-an-urban-site-of-india-influence-of-anthropogenic-emissions-and-dust-storms
#15
Ravi Yadav, L K Sahu, G Beig, Nidhi Tripathi, S N A Jaaffrey
Continuous measurements of PM2.5, PM10 and CO were conducted at an urban site of Udaipur in India from April 2011 to March 2012. The annual mean concentrations of PM2.5, PM10 and CO were 42 ± 17 μg m(-3), 114 ± 31 μg m(-3) and 343 ± 136 ppbv, respectively. Concentrations of both particulate and CO showed high values during winter/pre-monsoon (dry) period and lowest in the monsoon season (wet). Local anthropogenic emission and long-range transport from open biomass burning sources along with favourable synoptic meteorology led to elevated levels of pollutants in the dry season...
March 24, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28336085/the-dual-effect-of-vegetation-green-up-date-and-strong-wind-on-the-return-period-of-spring-dust-storms
#16
Jieling Feng, Ning Li, Zhengtao Zhang, Xi Chen
Vegetation phenology changes have been widely applied in the disaster risk assessments of the spring dust storms, and vegetation green-up date shifts have a strong influence on dust storms. However, the effect of earlier vegetation green-up dates due to climate warming on the evaluation of dust storms return periods remains an important, but poorly understood issue. In this study, we evaluate the spring dust storm return period (February to June) in Inner Mongolia, Northern China, using 165 observations of severe spring dust storm events from 16 weather stations, and regional vegetation green-up dates as an integrated factor from NDVI (Normalized Difference Vegetation Index), covering a period from 1982 to 2007, by building the bivariate Copula model...
March 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28283029/legal-immigrants-invasion-of-alien-microbial-communities-during-winter-occurring-desert-dust-storms
#17
Tobias Weil, Carlotta De Filippo, Davide Albanese, Claudio Donati, Massimo Pindo, Lorenzo Pavarini, Federico Carotenuto, Massimiliano Pasqui, Luisa Poto, Jacopo Gabrieli, Carlo Barbante, Birgit Sattler, Duccio Cavalieri, Franco Miglietta
BACKGROUND: A critical aspect regarding the global dispersion of pathogenic microorganisms is associated with atmospheric movement of soil particles. Especially, desert dust storms can transport alien microorganisms over continental scales and can deposit them in sensitive sink habitats. In winter 2014, the largest ever recorded Saharan dust event in Italy was efficiently deposited on the Dolomite Alps and was sealed between dust-free snow. This provided us the unique opportunity to overcome difficulties in separating dust associated from "domestic" microbes and thus, to determine with high precision microorganisms transported exclusively by desert dust...
March 10, 2017: Microbiome
https://www.readbyqxmd.com/read/28251534/do-rainfalls-wash-out-anthropogenic-airborne-magnetic-particulates
#18
Amarjargal Baatar, Raegyung Ha, Yongjae Yu
We separated dust particles from the mesh-filtered sets of rainwaters collected on rainy days with daily precipitations exceeding 10 mm per day. A total of 136 rainwaters (or snow during the winter season) samples collected from February 2009 to February 2013 were analyzed. In particular, 33 out of 136 rainwaters were collected during or just after the Asian dust storm (ADS) events. Values of pH were relatively higher during warmer seasons. During ADS events, precipitations were alkaline, possibly due to abundant supply of alkaline minerals from the deserts source area to the precipitation...
April 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28241509/the-association-between-ambient-air-pollution-and-allergic-rhinitis-further-epidemiological-evidence-from-changchun-northeastern-china
#19
Bo Teng, Xuelei Zhang, Chunhui Yi, Yan Zhang, Shufeng Ye, Yafang Wang, Daniel Q Tong, Binfeng Lu
With the continuous rapid urbanization process over the last three decades, outdoors air pollution has become a progressively more serious public health hazard in China. To investigate the possible associations, lag effects and seasonal differences of urban air quality on respiratory health (allergic rhinitis) in Changchun, a city in Northeastern China, we carried out a time-series analysis of the incidents of allergic rhinitis (AR) from 2013 to 2015. Environmental monitoring showed that PM2.5 and PM10 were the major air pollutants in Changchun, followed by SO₂, NO₂ and O₃...
February 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28208496/extension-of-discrete-tribocharging-models-to-continuous-size-distributions
#20
Dylan Carter, Christine Hartzell
Triboelectric charging, the phenomenon by which electrical charge is exchanged during contact between two surfaces, has been known to cause significant charge separation in granular mixtures, even between chemically identical grains. This charging is a stochastic size-dependent process resulting from random collisions between grains. The prevailing models and experimental results suggest that, in most cases, larger grains in a mixture of dielectric grains acquire a positive charge, while smaller grains charge negatively...
January 2017: Physical Review. E
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