keyword
MENU ▼
Read by QxMD icon Read
search

Dust storm

keyword
https://www.readbyqxmd.com/read/28283029/legal-immigrants-invasion-of-alien-microbial-communities-during-winter-occurring-desert-dust-storms
#1
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
#2
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...
March 1, 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
#3
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
#4
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
https://www.readbyqxmd.com/read/28102779/long-term-dust-aerosol-production-from-natural-sources-in-iceland
#5
Pavla Dagsson-Waldhauserova, Olafur Arnalds, Haraldur Olafsson
Iceland is a volcanic island in the North Atlantic Ocean with maritime climate. In spite of moist climate, large areas are with limited vegetation cover where >40% of Iceland is classified with considerable to very severe erosion and 21% of Iceland is volcanic sandy deserts. Not only do natural emissions from these sources influenced by strong winds affect regional air quality in Iceland ("Reykjavik haze"), but dust particles are transported over the Atlantic ocean and Arctic Ocean >1000 km at times. The aim of this paper is to place Icelandic dust production area into international perspective, present long-term frequency of dust storm events in northeast Iceland, and estimate dust aerosol concentrations during reported dust events...
February 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28029452/seasonal-and-spatial-differences-in-source-contributions-to-pm2-5-in-wuhan-china
#6
Ying Xiong, Jiabin Zhou, James J Schauer, Wenyang Yu, Yan Hu
Fine particle (PM2.5) samples were collected in 2011 and 2012 simultaneously at three sites in Wuhan in an industrial area (ID), downtown Wuhan (DT), and the Wuhan botanical gardens (BG). The annual average concentration of PM2.5 was highest in the industrial area at 180μgm(-3) and lowest in the botanical gardens, with an average of 93μgm(-3). The average downtown PM2.5 concentration was 113μgm(-3). All sites had concentrations well above the World Health Organization (WHO) guidelines and the Chinese air quality standard...
October 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/28018984/application-of-the-weps-and-sweep-models-to-non-agricultural-disturbed-lands
#7
J Tatarko, S J van Donk, J C Ascough, D G Walker
Wind erosion not only affects agricultural productivity but also soil, air, and water quality. Dust and specifically particulate matter ≤10 μm (PM-10) has adverse effects on respiratory health and also reduces visibility along roadways, resulting in auto accidents. The Wind Erosion Prediction System (WEPS) was developed by the USDA-Agricultural Research Service to simulate wind erosion and provide for conservation planning on cultivated agricultural lands. A companion product, known as the Single-Event Wind Erosion Evaluation Program (SWEEP), has also been developed which consists of the stand-alone WEPS erosion submodel combined with a graphical interface to simulate soil loss from single (i...
December 2016: Heliyon
https://www.readbyqxmd.com/read/28001122/spatial-and-temporal-variability-in-desert-dust-and-anthropogenic-pollution-in-iraq-1997-2010
#8
A Alexandra Chudnovsky, Petros Koutrakis, Alex Kostinski, Susan P Proctor, Eric Garshick
Satellite imaging has emerged as a method for monitoring regional air pollution and detecting areas of high dust concentrations. Unlike ground observations, continuous data monitoring is available with global coverage of terrestrial and atmospheric components. In this study we test the utility of different sources of satellite data to assess air pollution concentrations in Iraq. SeaWiFS and MODIS Deep Blue (DB) aerosol optical depth (AOD) products were evaluated and used to characterize the spatial and temporal pollution levels from the late 1990s through 2010...
2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/27958495/instantaneous-influence-of-dust-storms-on-the-optical-scattering-property-of-the-ocean-a-case-study-in-the-yellow-sea-china
#9
Shuguo Chen, Tinglu Zhang, Wenzhong Chen, Jinhui Shi, Lianbo Hu, Qingjun Song
Asian dust storms originating from arid or semi-arid regions of China or her adjacent regions have important impact on the atmosphere and water composition, and ecological environment of the Eastern China Seas. This research used data collected in the middle of the South Yellow Sea, China, during a dust storm event from 23 April to 24 April 2006 to analyze the instantaneous influence of dust storms on optical scattering properties, which are closely related to particle characteristics. The analysis results showed that the dust storm had a remarkable influence on the optical scattering property in the upper mixed layer of water, and dust particles drily deposited from the dust storm with an aerosol optical depth of nearly 2...
December 12, 2016: Optics Express
https://www.readbyqxmd.com/read/27936136/improving-the-non-hydrostatic-numerical-dust-model-by-integrating-soil-moisture-and-greenness-vegetation-fraction-data-with-different-spatiotemporal-resolutions
#10
Manzhu Yu, Chaowei Yang
Dust storms are devastating natural disasters that cost billions of dollars and many human lives every year. Using the Non-Hydrostatic Mesoscale Dust Model (NMM-dust), this research studies how different spatiotemporal resolutions of two input parameters (soil moisture and greenness vegetation fraction) impact the sensitivity and accuracy of a dust model. Experiments are conducted by simulating dust concentration during July 1-7, 2014, for the target area covering part of Arizona and California (31, 37, -118, -112), with a resolution of ~ 3 km...
2016: PloS One
https://www.readbyqxmd.com/read/27888423/assessment-of-land-use-and-land-cover-change-using-spatiotemporal-analysis-of-landscape-case-study-in-south-of-tehran
#11
Abutaleb Sabr, Mazaher Moeinaddini, Hossein Azarnivand, Benjamin Guinot
In the recent years, dust storms originating from local abandoned agricultural lands have increasingly impacted Tehran and Karaj air quality. Designing and implementing mitigation plans are necessary to study land use/land cover change (LUCC). Land use/cover classification is particularly relevant in arid areas. This study aimed to map land use/cover by pixel- and object-based image classification methods, analyse landscape fragmentation and determine the effects of two different classification methods on landscape metrics...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27864178/microbial-nursery-production-of-high-quality-biological-soil-crust-biomass-for-restoration-of-degraded-dryland-soils
#12
Sergio Velasco Ayuso, Ana Giraldo Silva, Corey Nelson, Nichole N Barger, Ferran Garcia-Pichel
Biological soil crusts (biocrusts) are slow-growing, phototroph-based microbial assemblages that develop on the topsoils of drylands. Biocrusts help maintain soil fertility and reduce erosion. Because their loss through human activities has negative ecological and environmental health consequences, biocrust restoration is of interest. Active soil inoculation with biocrust microorganisms can be an important tool in this endeavor. We present a culture-independent, two-step process to grow multispecies biocrusts in open greenhouse nursery facilities, based on the inoculation of local soils with local biocrust remnants and incubation under seminatural conditions that maintain the essence of the habitat but lessen its harshness...
February 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27847189/drought-effect-on-biocrust-resilience-high-speed-winds-result-in-crust-burial-and-crust-rupture-and-flaking
#13
Giora J Kidron, Wang Ying, Abraham Starinsky, Moshe Herzberg
Once established, biocrusts (known also as biological soil crusts or microbiotic crusts) are thought to be relatively resilient to wind erosion, with crust burial being considered as the main mechanism responsible for crust death. Thus far, to the best of our knowledge, crust flaking and rupture under natural conditions were not reported. We report herein a two-year study during two severe drought years (2010-2012) in a dunefield in the Negev Desert during which in addition to crust burial, crust rupture and flaking also took place...
February 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27751634/size-distributions-of-n-alkanes-fatty-acids-and-fatty-alcohols-in-springtime-aerosols-from-new-delhi-india
#14
Mingjie Kang, Pingqing Fu, Shankar G Aggarwal, Sudhanshu Kumar, Ye Zhao, Yele Sun, Zifa Wang
Size-segregated aerosol samples were collected in New Delhi, India from March 6 to April 6, 2012. Homologous series of n-alkanes (C19C33), n-fatty acids (C12C30) and n-alcohols (C16C32) were measured using gas chromatography/mass spectrometry. Results showed a high-variation in the concentrations and size distributions of these chemicals during non-haze, haze, and dust storm days. In general, n-alkanes, n-fatty acids and n-alcohols presented a bimodal distribution, peaking at 0.7-1.1 μm and 4.7-5.8 μm for fine modes and coarse modes, respectively...
December 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27708098/spiral-density-waves-in-a-young-protoplanetary-disk
#15
Laura M Pérez, John M Carpenter, Sean M Andrews, Luca Ricci, Andrea Isella, Hendrik Linz, Anneila I Sargent, David J Wilner, Thomas Henning, Adam T Deller, Claire J Chandler, Cornelis P Dullemond, Joseph Lazio, Karl M Menten, Stuartt A Corder, Shaye Storm, Leonardo Testi, Marco Tazzari, Woojin Kwon, Nuria Calvet, Jane S Greaves, Robert J Harris, Lee G Mundy
Gravitational forces are expected to excite spiral density waves in protoplanetary disks, disks of gas and dust orbiting young stars. However, previous observations that showed spiral structure were not able to probe disk midplanes, where most of the mass is concentrated and where planet formation takes place. Using the Atacama Large Millimeter/submillimeter Array, we detected a pair of trailing symmetric spiral arms in the protoplanetary disk surrounding the young star Elias 2-27. The arms extend to the disk outer regions and can be traced down to the midplane...
September 30, 2016: Science
https://www.readbyqxmd.com/read/27698382/lichen-elemental-composition-distinguishes-anthropogenic-emissions-from-dust-storm-inputs-and-differs-among-species-evidence-from-xilinhot-inner-mongolia-china
#16
Hua-Jie Liu, Shi-Bo Fang, Si-Wa Liu, Liang-Cheng Zhao, Xiu-Ping Guo, Yun-Jun Jiang, Jian-Sen Hu, Xiao-Di Liu, Yu Xia, Yi-Dan Wang, Qing-Feng Wu
To test the applicability of lichens in the biomonitoring of atmospheric elemental deposition in a typical steppe zone of Inner Mongolia, China, six foliose lichens (Physcia aipolia, PA; P. tribacia, PT; Xanthoria elegans, XE; X. mandschurica, XM; Xanthoparmelia camtschadalis, XPC; and Xp. tinctina, XPT) were sampled from the Xilin River Basin, Xilinhot, Inner Mongolia, China. Twenty-five elements (Al, Ba, Cd, Ce, Cr, Cs, Cu, Fe, K, La, Mn, Mo, Na, Ni, P, Pb, Sb, Sc, Sm, Tb, Th, Ti, Tl, V and Zn) in the lichens were analysed using inductively coupled plasma mass spectrometry (ICP-MS)...
October 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27513479/the-spatio-temporal-distribution-of-particulate-matter-during-natural-dust-episodes-at-an-urban-scale
#17
Helena Krasnov, Itai Kloog, Michael Friger, Itzhak Katra
Dust storms are a common phenomenon in arid and semi-arid areas, and their impacts on both physical and human environments are of great interest. Number of studies have associated atmospheric PM pollution in urban environments with origin in natural soil/dust, but less evaluated the dust spatial patterns over a city. We aimed to analyze the spatial-temporal behavior of PM concentrations over the city of Beer Sheva, in southern Israel, where dust storms are quite frequent. PM data were recorded during the peak of each dust episode simultaneously in 23 predetermined fixed points around the city...
2016: PloS One
https://www.readbyqxmd.com/read/27495363/a-case-control-study-of-innate-immunity-pathway-gene-polymorphisms-in-puerto-ricans-reveals-association-of-toll-like-receptor-2%C3%A2-596-variant-with-asthma
#18
Mario G Ortiz-Martínez, Orquídea Frías-Belén, Sylvette Nazario-Jiménez, María López-Quintero, Rosa I Rodríguez-Cotto, Braulio D Jiménez-Vélez
BACKGROUND: For many years, African Dust Storms (ADE) has been thought to be associated with high prevalence of asthma in Puerto Rico (PR). Endotoxins (ENX) have been associated with ADE particulate matter (PM) and are known to promote pro-inflammatory responses in lung cells of susceptible individuals through the Toll-like receptor (TLR2/4) signaling pathways. Genetic variants are plausible contributors to such susceptibility. Therefore, we have evaluated a series of nine single nucleotide polymorphisms (SNPs) in TLR genes, which have been correlated positive and negatively to asthma prevalence and/or risk, in the Puerto Rican asthmatic population...
2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27495251/annual-ambient-atmospheric-mercury-speciation-measurement-from-longjing-a-rural-site-in-taiwan
#19
Guor-Cheng Fang, Chaur-Tsuen Lo, Meng-Hsien Cho, Yuan-Jie Zhuang, Kai-Hsiang Tsai, Chao-Yang Huang, You-Fu Xiao
The main purpose of this study was to monitor ambient air particulates and mercury species [RGM, Hg(p), GEM and total mercury] concentrations and dry depositions over rural area at Longjing in central Taiwan during October 2014 to September 2015. In addition, passive air sampler and knife-edge surrogate surface samplers were used to collect the ambient air mercury species concentrations and dry depositions, respectively, in this study. Moreover, direct mercury analyzer was directly used to detect the mercury Hg(p) and RGM concentrations...
August 5, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27409359/the-role-of-iron-bearing-minerals-in-no2-to-hono-conversion-on-soil-surfaces
#20
Mulu A Kebede, David L Bish, Yaroslav Losovyj, Mark H Engelhard, Jonathan D Raff
Nitrous acid (HONO) accumulates in the nocturnal boundary layer where it is an important source of daytime hydroxyl radicals. Although there is clear evidence for the involvement of heterogeneous reactions of NO2 on surfaces as a source of HONO, mechanisms remain poorly understood. We used coated-wall flow tube measurements of NO2 reactivity on environmentally relevant surfaces (Fe (hydr)oxides, clay minerals, and soil from Arizona and the Saharan Desert) and detailed mineralogical characterization of substrates to show that reduction of NO2 by Fe-bearing minerals in soil can be a more important source of HONO than the putative NO2 hydrolysis mechanism...
August 16, 2016: Environmental Science & Technology
keyword
keyword
87320
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"