Mineralogical composition and potential sources of dust fallout deposits in Kuwait, Northern Arabian Gulf

Khalaf, Fikry I.; Al‐Kadi, A. S.; Al-Saleh, S.

doi:10.1016/0037-0738(85)90047-8

Cited by 46 publications

(30 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Detailed mineralogical investigations of dust fallout deposits collected at eleven locations in Kuwait have been reported by Khalaf et al (1979Khalaf et al ( , 1985. The dust fallout deposited in Kuwait is quartzitic calcareous sandy silt (dolomite, gypsum) and is mostly derived from the dry Mesopotamian flood plain in the middle and south of Iraq.…”

Section: Analysis Of Du In Rainwatermentioning

confidence: 99%

Transport of carbon-bearing dusts from Iraq to Japan during Iraq's War

Tazaki

Wakimoto

Minami

et al. 2004

Atmospheric Environment

View full text Add to dashboard Cite

Abstract-Rainwater collected during the period of February to April, 2003, at Kanazawa University, the Japan Sea Coast, was investigated by Ion chromatography for the dissolved ions. The filtered samples were evaluated by various kinds of 1 micro-techniques. The pH, Eh, electrical conductivity (EC), dissolved oxygen (DO), and depleted U (DU) of the rainwater were also measured. The results showed a rare case with low pH and high EC values of rainwater. The

show abstract

Section: Analysis Of Du In Rainwatermentioning

confidence: 99%

Transport of carbon-bearing dusts from Iraq to Japan during Iraq's War

Tazaki

Wakimoto

Minami

et al. 2004

Atmospheric Environment

View full text Add to dashboard Cite

show abstract

“…Up to two billion tons of dust blows into the atmosphere in a single year within major SDS trajectories [11]. Frequent occurrences of SDS in the Arabian Gulf cause an acute environmental problem that can affect the health, safety and economic well-being of society [12]. The SDS passing over the Arabian Gulf is considered to be the major sources of sediments [13].…”

Section: Introductionmentioning

confidence: 99%

Types, Indications and Impact Evaluation of Sand and Dust Storms Trajectories in the Arabian Gulf

2017

View full text Add to dashboard Cite

Dust is a common weather phenomenon in the Arabian Gulf, which has severely affected economy and health. Sand and dust storms (SDS) trajectories in the Arabian Gulf were temporally and spatially monitored from March 2000 to March 2017. Eight major SDS trajectories were detected from satellite images. The dust storms trajectories were categorized according to shape and size into three main types with 12 subtypes in the region. The annual transported dust amount into the Arabian Gulf was estimated by 89.1 million metric tons, which is about 10,330 metric tons per cubic kilometer of water volume. In comparison to other seas and oceans, the amount of dust deposited into the Arabian Gulf water body volume is the highest. Dust deposited in the coastal regions within the Arabian Gulf are originated from Mesopotamian Flood Plain (MFP), Ahwaz (HZ), Ahwar (HR) and Baluchistan Desert (BSH) and characterized by physical parameters and composition. Such physical characterization of the trajectories of SDS, and of the properties of particles transported in the Arabian Gulf can be helpful to assess and mitigate the environmental impact of future similar events.

show abstract

“…Illite is a dominant clay mineral in arid regions (Claquin et al, 1999). Illite is observed in dusts from desert regions (Khalaf et al, 1985;Singer, 1988;Blanco et al, 2002;Bruintjes et al, 2002). The reaction rate increased with increasing temperature and it decreased with increasing relative humidity.…”

Section: Introductionmentioning

confidence: 99%

Laboratory study on heterogeneous decomposition of methyl chloroform on various standard aluminosilica clay minerals as a potential tropospheric sink

et al. 2003

View full text Add to dashboard Cite

Abstract.Methyl chloroform (1,1,1-trichloroethane, CH 3 CCl 3 ) was found to decompose heterogeneously on seven types of standard clay minerals (23 materials) in dry air at 313 K in the laboratory. All reactions proceeded through the elimination of HCl; CH 3 CCl 3 was converted quantitatively to CH 2 =CCl 2 . The activities of the clay minerals were compared via their pseudo-first-order reaction rate constants (k 1 ). A positive correlation was observed between the k 1 value and the specific surface area (S) of clay minerals, where the S value was determined by means of the general Brunauer-Emmett-Teller (BET) equation. The k 1 value was anti-correlated with the value of n, which was a parameter of the general BET equation and related to the average pore size of the clay minerals, and correlated with the water content that can be removed easily from the clay minerals. The reaction required no special pretreatment of clay minerals, such as heating at high temperatures; hence, the reaction can be expected to occur in the environment. Photoillumination by wavelengths present in the troposphere did not accelerate the decomposition of CH 3 CCl 3 , but it induced heterogeneous photodecomposition of CH 2 =CCl 2 . The temperature dependence of k 1 , the adsorption equilibrium coefficient of CH 3 CCl 3 and CH 2 =CCl 2 , and the surface reaction rate constant of CH 3 CCl 3 were determined for an illite sample. The k 1 value increased with increasing temperature. The amount of CH 3 CCl 3 adsorbed on the illite during the reaction was proportional to the partial pressure of CH 3 CCl 3 . The reaction was sensitive to relative humidity and the k 1 value decreased with increasing relative humidity. However, the reaction was found to proceed at a relative humidity of 22% at 313 K, although the k 1 value was about one-twentieth of the value in non-humidified air. The conditions required for the reaction may be present in major desert regions of the world. A simple estimation indicates that the possible heterogeneous decomposition of CH 3 CCl 3 on the ground surface in arid reCorrespondence to: S. Kutsuna (s-kutsuna@aist.go.jp) gions is worth taking into consideration when inferring the tropospheric lifetime of CH 3 CCl 3 and global OH concentration from the global budget concentration of CH 3 CCl 3 .

show abstract

Mineralogical composition and potential sources of dust fallout deposits in Kuwait, Northern Arabian Gulf

Cited by 46 publications

References 8 publications

Transport of carbon-bearing dusts from Iraq to Japan during Iraq's War

Transport of carbon-bearing dusts from Iraq to Japan during Iraq's War

Types, Indications and Impact Evaluation of Sand and Dust Storms Trajectories in the Arabian Gulf

Laboratory study on heterogeneous decomposition of methyl chloroform on various standard aluminosilica clay minerals as a potential tropospheric sink

Contact Info

Product

Resources

About