Water Application for Dust Control in the Central Plateau: Impacts, Alternatives, and Work Strategies

Yonkofski, Catherine; Appriou, Delphine; Song, Xianfang; Downs, Janelle L.; Johnson, Christian D.; Milbrath, Valarie C.

doi:10.2172/1488558

Cited by 8 publications

(4 citation statements)

References 32 publications

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“…In most cases the effectiveness of dust control can be greatly improved by utilizing additives to the water such as a surfactant. Many surfactants are a soap-based solution, which improves the wetting ability of water and can remain on soil surface after water has evaporated and aids in soil particle agglomeration (Yonkofski 2018). This approach will add to the cost of water application because of surfactant cost and possibly for specialized equipment needed for application.…”

Section: Erosion From Vegetation Removal/loss Dust Control For Wind-d...mentioning

confidence: 99%

Idaho National Laboratory Site Natural Resources: Wildland Fire Recovery Framework

Forman,

Kramer,

Shive

et al. 2024

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Section: Erosion From Vegetation Removal/loss Dust Control For Wind-d...mentioning

confidence: 99%

Idaho National Laboratory Site Natural Resources: Wildland Fire Recovery Framework

Forman,

Kramer,

Shive

et al. 2024

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“…Tuberculosis, which is a severe infection, is aggravated by silicosis [32]. Excavation, filling, stockpiling, and haulage operations generate huge volumes of dust containing silica that could spread beyond the site limits as dump trucks transport these materials to disposal sites [33]. Vehicle movement on unpaved roads, which is typical of temporary roads within construction sites, also creates large quantities of dust [34].…”

Section: Dust Generation and Its Impactmentioning

confidence: 99%

“…However, countries or regions that experience water shortage find this technique to be expensive and morally inappropriate. A study commissioned by the US Department of Energy found water suppression to control dust has several negative impacts, including ground water contamination [33]. Overall, behavioral control methods are a promising alternative to the engineering control methods as it deals directly with dust generation.…”

Section: Dust Pollution Control On Sitesmentioning

confidence: 99%

Mitigating Dust Pollution from Construction Activities: A Behavioural Control Perspective

et al. 2021

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Construction sites constitute major sources of pollutants creating negative impacts on the environment. Sustainable construction aims at mitigating these negative externalities while promoting economic and social outcomes. Dust pollution in construction sites is an invisible hazard, which is often ignored as little more than a nuisance. Although behavioral control is a popular way of preventing dust generation, past research has paid little attention to worker behavior regarding dust mitigation. This study aims to test a model that predicts intentions to alter the conduct of workers towards dust control in construction activities. This study adopted a questionnaire survey design with construction participants in Sri Lanka, using structural equation modelling to test several hypotheses based on the Norm Activation Model. The results proved that awareness of consequences and ascription of responsibility could have a positive impact on personal norms, which in turn could influence the behavior of site employees. The study also provided new insights on employees’ awareness of dust hazards, their sense of responsibility for its control, and the importance of their company. Policymakers and practitioners are recommended to pay more attention to how to harness worker’s support to mitigate dust pollution, and construction companies should initiate educational campaigns to raise awareness about environmental impacts, to influence personal norms of the workers in building sites. This research contributes to the body of knowledge by enhancing our understanding of factors influencing employees’ dust control behavior.

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“…On playas within desert plains, water that lies only a few tens of millimetres below the surface also governs saltation and dust emission, though primarily through its role in crust development (Cahill et al, 1996; Reid et al, 1994; Stout, 2003). Water is widely applied through sprinkling or shallow flooding to mitigate sand drifting and dust emission, inclusive of both natural surfaces and unpaved roads, stockpiles, tailings ponds and construction sites (Yonkofski et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Effect of the surface water content on dry saltation cloud dynamics: A wind tunnel simulation with particle tracking velocimetry

O'Brien,

Neuman

2023

Earth Surf Processes Landf

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The mass transport rate of wind‐borne particles, and indeed the fluid stress required for their entrainment, is strongly governed by inter‐particle cohesion arising from water retained through adsorption and capillary force. This paper reports on a series of wind tunnel experiments in which high‐speed photography was used to record the motion of dry sand particles as they impinged on test beds of systematically varied target gravimetric pore water content (0% ≤ W ≤ 10%). The wind friction velocity was preset to 0.33 m s−1, sufficient to maintain a saltation cloud above an upwind strip of dry sand, which then was blown over the wetted surface. Discrete particle trajectories were identified in the camera images using expected particle area searching–particle tracking velocimetry (EPAS‐PTV). Adding progressively more water produced an exponential decrease in the normalized particle number density over the test surface. The largest response was achieved by wetting the bed surface to just 2%. To reduce the number of particles by a further 40%, it was necessary to add eight times more water, signifying a diminishing return regarding water use. Relative to particles either rebounding or splashed from a dry bed, the total particle velocity increased incrementally by a factor between 1.5 and 2 with increasing water content. Increasing amounts of pore water were associated with progressively higher saltation trajectories, reaching a plateau beyond W ~8%. The spatio‐temporal adjustment in the sand cloud was observed to be extremely rapid. There is no consensus in the literature on how to measure the water content that effectively governs aeolian transport. In this study, all approaches to sampling W produced strong correlation (R2 ≥ 0.85). Sampling the topmost grains, however, provided the most accurate prediction of the normalized number density over the full range of water content.

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Water Application for Dust Control in the Central Plateau: Impacts, Alternatives, and Work Strategies

Cited by 8 publications

References 32 publications

Idaho National Laboratory Site Natural Resources: Wildland Fire Recovery Framework

Idaho National Laboratory Site Natural Resources: Wildland Fire Recovery Framework

Mitigating Dust Pollution from Construction Activities: A Behavioural Control Perspective

Effect of the surface water content on dry saltation cloud dynamics: A wind tunnel simulation with particle tracking velocimetry

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