Stable Isotope Ratios of Mercury in Commercially Available Thermometers and Fluorescent Tubes

Irei, Satoshi

doi:10.1021/acsomega.1c06060

Cited by 2 publications

(2 citation statements)

References 33 publications

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“…The positive Δ 199 Hg and Δ 200 Hg values are consistent with the source of Hg being from fluorescent light bulbs, which are among the Hg bearing material handled at the facility. They are known to have a highly unusual isotopic signatures that is thought to occur during self‐shielding type isotopic fractionation during photochemical reactions within fluorescent light bulbs resulting in positive Δ 199 Hg and Δ 200 Hg values in the vapor phase (Irei, 2022; Mead et al., 2013). Upon breakage of the bulbs, the vapor‐phase Hg can be released to the atmosphere (Johnson et al., 2008).…”

Section: Resultsmentioning

confidence: 99%

Applying Passive Air Sampling and Isotopic Characterization to Assess Spatial Variability of Gaseous Elemental Mercury Across Ontario, Canada

Szponar

Stupple

et al. 2023

JGR Atmospheres

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This study deployed 59 passive air samplers (PAS) across the province of Ontario, Canada (and eight additional deployments in bordering states of northern USA) to assess the influence of local/regional sources, temporal differences, and possible transformations in the atmospheric gaseous elemental mercury (GEM) pool. The spatial mapping achieved with the PASs allowed for the observation of differences in GEM and its isotopic composition over the region. Concentrations of GEM were higher with more negative δ202Hg values near urban/industrial areas and suspected emission sources in southern Ontario. In northern Ontario, far from industrial influences, lower concentrations of GEM with isotopically more positive δ202Hg values were found at the boreal forest sites compared to sites within the Hudson Bay Lowlands. The differences in northern Ontario may be from greater uptake of GEM by the boreal forest removing isotopically light Hg and lowering concentrations. Lower GEM and a shift toward more positive δ202Hg were also observed during the summer relative to other times of year supporting vegetation uptake as an important sink for GEM. PASs were also deployed along a transect of increasing distance from a Hg recycling facility. The Hg emissions from the facility had unique positive Δ199Hg and Δ200Hg signatures, but GEM concentrations and isotopic compositions returned to background within 400 m of the facility. The province‐wide variations in atmospheric GEM and isotopic compositions show that both sources (e.g., urban/industrial emissions) and sinks (e.g., vegetation uptake) contribute to the spatial and temporal patterns of the residual atmosphere GEM pool.

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Section: Resultsmentioning

confidence: 99%

Applying Passive Air Sampling and Isotopic Characterization to Assess Spatial Variability of Gaseous Elemental Mercury Across Ontario, Canada

Szponar

Stupple

et al. 2023

JGR Atmospheres

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“…Before the advent of soft electronics, liquid metals are particularly attractive because of their low melting points, so they were often used in coolant, dentures, thermometers, and phase change material (ZHU et al, 2016;LIU et al, 2022a;IREI, 2022). With the development of soft electronics, more applications are developed according to the different properties of liquid metals.…”

Section: Typical Applications Of Liquid Metal In Soft Electronicsmentioning

confidence: 99%

Recent progress in fiber-based soft electronics enabled by liquid metal

Yang

Tang

2023

Front. Bioeng. Biotechnol.

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Soft electronics can seamlessly integrate with the human skin which will greatly improve the quality of life in the fields of healthcare monitoring, disease treatment, virtual reality, and human-machine interfaces. Currently, the stretchability of most soft electronics is achieved by incorporating stretchable conductors with elastic substrates. Among stretchable conductors, liquid metals stand out for their metal-grade conductivity, liquid-grade deformability, and relatively low cost. However, the elastic substrates usually composed of silicone rubber, polyurethane, and hydrogels have poor air permeability, and long-term exposure can cause skin redness and irritation. The substrates composed of fibers usually have excellent air permeability due to their high porosity, making them ideal substrates for soft electronics in long-term applications. Fibers can be woven directly into various shapes, or formed into various shapes on the mold by spinning techniques such as electrospinning. Here, we provide an overview of fiber-based soft electronics enabled by liquid metals. An introduction to the spinning technology is provided. Typical applications and patterning strategies of liquid metal are presented. We review the latest progress in the design and fabrication of representative liquid metal fibers and their application in soft electronics such as conductors, sensors, and energy harvesting. Finally, we discuss the challenges of fiber-based soft electronics and provide an outlook on future prospects.

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Stable Isotope Ratios of Mercury in Commercially Available Thermometers and Fluorescent Tubes

Cited by 2 publications

References 33 publications

Applying Passive Air Sampling and Isotopic Characterization to Assess Spatial Variability of Gaseous Elemental Mercury Across Ontario, Canada

Applying Passive Air Sampling and Isotopic Characterization to Assess Spatial Variability of Gaseous Elemental Mercury Across Ontario, Canada

Recent progress in fiber-based soft electronics enabled by liquid metal

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