Characterization of Sand and Dust Pollution Degradation …
In the field of microelectromechanical system ... In this experiment, a sand and dust pollution test platform (CET-CC1000) was chosen as shown in Figure 12, which continuously collects dust during regular operation to observe the effect of pollutants on the device parameters in a short time. The sand and dust contamination test of MEMS ...
Dust pollution from the Sahara and African infant …
We show that future climate change driven changes in Saharan rainfall—a control on dust export—could generate large child health impacts, and that seemingly exotic proposals to pump and apply...
Tracking sand and dust storms
In 2016, UN Environment and partners published the world's first global assessment of sand and dust storms. The report describes the sources of dust, outlines key trends, and offers specific policy recommendations.
How Extreme Temperature Swings in Deserts Stir Sand and Dust
Sand grains skipped along the surface, and dust moved up into the atmosphere. After sunset, the temperature of the air and sand dropped quickly. Wind speeds at the surface died down and the sand ...
Heavy metal pollution characteristics and health risk assessment …
Introduction. Due to accelerated social and economic development, an increasing number of pollutants are frequently discharged into the environment (Huang et al., 2015).Among these air pollutants, heavy metals are some of the most highly toxic, mobile, unstable, and accumulative (Koz, Cevik & Akbulut, 2012; Turkyilmaz, Sevik & …
Dust pollution from the Sahara and African infant …
Air pollution harms health but rises with economic activity, which aids health. This study uses long-range Saharan dust to isolate impacts, finding a significant rise in Sub-Saharan infant ...
An analysis of air pollution associated with the 2023 sand and dust …
Every spring, a large part of China is confronted with sand and dust storms (SDS) – mainly originating in the Gobi (including Chinese and Mongolian Gobi) and Taklamakan deserts. In March-April 2023, most of northern, northwestern and northeastern China was struck by three sandstorms that affected an area with more than 500 million people.
Dusts | Air Pollution Information System
Given the wide variety of pollutants and chemical compositions involved, dust particles play a role in many air pollution issues. These include: light scattering leading to the potential to offset global warming. climate change will affect PM concentrations in polluted environments by ±0.1-1μg m -3 over the coming decades.
Modeling for the source apportionments of PM10 during sand and dust …
Sand and dust storms occur frequently in East Asia, and the dust particles could be transported to most areas of East Asia. To quantify the dust emissions in 18 dust source regions in China and Mongolia and their contributions to PM 10 concentrations over East Asia, 10 sand and dust storms (SDSs) episodes in 2020 were simulated using the …
An analysis of air pollution associated with the 2023 sand and dust …
In general, in 24 cities of the country, the average hourly concentration exceeded 3000 µg/m 3.In Fig. 1, which depicts the average daily concentrations of PM 10, the highest dust intensity was on March 22.The average hourly PM 10 concentrations on this date exceeded 1000 µg/m 3 in 79 Chinese cities located in the northern and eastern …
Stratospheric impacts on dust transport and air pollution in …
Here we show that on timescales of weeks to months, North African dust emission and transport are impacted by sudden stratospheric warmings (SSWs), which establish a negative North Atlantic...
Sand and dust storms | UNEP
This factsheet highlights how sand and dust storms are a global environmental problem that affects the health and livelihoods of millions of people across the world.
Mongolian Sand and Dust Storms' Impacts on Asia-Pacific …
In a 2021 review, Opp et al. summarized that sand and dust storms (SDS) have significant impacts on human health, agriculture, industry, transportation, water, and air quality, but in the end, "…our review of SDS publications has confirmed the huge lack of knowledge in the field of the economic evaluation of SDS effects" (p. 14).
T63 Engine Sand and Dust Tolerance Development and Field Experience
T63 Engine Sand and Dust Tolerance Development and Field Experience. 670334. This paper generally describes the overall Allison T63 turboshaft engine contaminant ingestion development program and field experience to date. The presentation encompasses results of tests conducted to provide (1) definition of the contaminant ingestion problems, (2 ...
Characterization of red sand dust pollution control
Red sand dust pollution is of great concern for its occupational and environmental detriments. The current remediation technique includes water spray and non-traditional stabilization via the application of polymer stabilizers. The dust erosion resistance plays a significant role in quantifying the effectiveness of red sand dust …
How Dust Affects the World's Health
The image below shows dust from the Thar Desert blowing east over the densely populated Indo-Gangetic Plain and mixing with smoke and haze from crop fires and urban pollution on April 7, 2021. Both …
Characteristics of air pollution in Beijing during sand-dust …
In the Beijing area, March and April have the highest frequency of sand-dust weather. Floating dust, blowing sand, and dust storms, primarily from Mongolia, account for 71%, 20%, and 9% of sand-dust weather, respectively. Ambient air monitoring and analysis of recent meteorological data from Beijing sand-dust storm periods revealed that PM10 …
Dust prevention and control in China: A systematic
Dust pollution has a tremendous impact on clean and safe production in Chinese enterprises. According to statistics, coal mine dust accidents caused about 500 deaths in China from 2000 to 2020 [4]. ... Simulation analysis and engineering application of distribution characteristics about multi-stage atomization field for cutting dust in fully ...
Effect of polymer stabilizers' viscosity on red sand …
As a result, this paper only focuses on the dust control of red sand. One potential approach to mitigating red sand dust pollution is the chemical stabilization by applying the solutions of polymer stabilizers [[10], [11], [12]]. Due to the thickening and non-Newtonian properties, polymer stabilizer solutions can effectively enhance the ...
Suppression of dust pollution by double-network material …
Coal dust from open-cast mines is a significant air pollutant; thus, dust particles and toxins contained in the dust are a severe threat to human health and ecosystems.
Sand and dust storm frequency increasing in many world …
Sand and dust storms are an underappreciated problem now "dramatically" more frequent in some places worldwide, with at least 25% of the phenomenon attributed to human activities, according to the UN Convention to Combat Desertification (UNCCD). Accompanied by policy recommendations, the warning comes as a five-day meeting …
The influence of the sand-dust environment on air-gap …
The main reason for this is that the distortion of the local electric field formed by the polarization and charging of sand particles under the action of the electric field affects the dielectric ...
Dust deposition on the photovoltaic panel: A
Nevertheless, one challenge that arises with the outdoor use of PV modules is the accumulation of dust and soiling on their surfaces. This build-up acts as a barrier that impedes the interaction between the module and the incident light, thereby impacting its performance [6].Dust comprises various substances or particles with a diameter smaller …
T63 Engine Sand and Dust Tolerance Development and Field …
T63 Engine Sand and Dust Tolerance Development and Field Experience. G. Bianchini. Published 1 February 1967. Engineering, Environmental Science, Materials Science. View via Publisher. Save to Library. Create Alert. Cite.
Environmental Pollution
Targino et al., 2019, dust weather, and haze pollution frequently superimposed each other, resulting in a high pollution level in Beijing.The events of pollution (hereinafter referred to as EP) are typically classified based on daily PM 2.5 concentrations (exceeding the NAAQS grade II standard of 75 μg m −3) and duration …
Impacts of Transboundary Dust Transport on Aerosol Pollution …
The dust continued to travel to the southeast and arrived at the Xi'an site at 14:00 on April 5. Due to diffusion, with dry and wet deposition processes, the concentration of dust had decreased by that time, and the peak PM 10 concentration that day was 244 μg/m 3. The sand and dust arrived at Hefei at 12:00 on April 6.
Field observations of sand flux and dust emission above a
Purpose Gobi deserts are a major source of natural and anthropogenic aerosols in China. However, the characteristics of the sand flow and dust emission processes are still an open question. This study intends to accurately describe the characteristics of the sand flow and dust emission and to determine the relationship …
Environmental Implications of Quarry Rock Dust: A …
Quarry rock dust (QRD), a waste obtained during the quarrying process is a significant source of air pollution yet has the potential of becoming a sustainable and economical alternative to sand in concrete. Studies confirmed that replacing sand in conventional concrete with QRD increases its durability and robustness by ten percent.
Impact of long-term dust accumulation on photovoltaic …
Extensive research has been undertaken to explore the effects of dust on PV module. The conducted studies are: 1. Experimental studies: These studies measure PV behavior considering dust deposition through experimental testing in the laboratory or field, as shown in Fig. 3(a) and (b), respectively. One example of a study that measures the …
Effects of Desert Dust and Sandstorms on Human Health: A …
Desert dust and sandstorms are recurring environmental phenomena that are reported to produce serious health risks worldwide. Inconsistencies in exposure definitions and modeling strategies may have contributed to the observed heterogeneity in the effect estimates.