Spatial and long-term analysis of rainwater chemistry over the conterminous United States

Keresztesi, Ágnes; Niţă, Ion-Andrei; Boga, Réka; Bîrsan, Marius-Victor; Bodor, Zsolt; Szép, Róbert

doi:10.1016/j.envres.2020.109872

Cited by 62 publications

(40 citation statements)

References 56 publications

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“…3). This revealed that precipitation amount is the important factor impacting rainwater ionic species, which is in agreement to the previous findings (Keresztesi et al, 2020b;Szép et al, 2018). The more clear relationship between rainfall amount and ions concentrations were illuminated in Figs.…”

Section: Temporal Variation Influencing Causes and Neutralization Coefficients Of Ion Compositionssupporting

confidence: 92%

Rainwater chemistry observation in a karst city: variations, influence factors, sources and potential environmental effects

Zeng¹,

Han²

2021

PeerJ

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The rainwater chemistry and related air contaminants are used to investigate the rainwater ions sources, variations, and influence factors from 2012 to 2014 in Guiyang city (the typical karst urban area of Southwest China). According to temporal rainwater ion concentrations, the obvious variations were presented in the study period, such as Ca2+ (125∼6,652 μeq L−1) and SO42− (11∼4,127 μeq L−1). Consequently, Ca2+, Mg2+, SO42− and Cl− are considered as the leading ions. Three critical influencing factors of rainwater ions concentrations, including sources variations, rainfall amount and long-distance migration (rainfall amount > 100 mm) are identified. Based on the typical ionic ratios, source identification suggested that anthropogenic inputs mainly contributed to F−, NO3− and SO42−, while the dusts (crustal sources) are the primary sources of Mg2+, Ca2+ and K+. Cl− Enrichment in long-distance transport is the main contributor of Cl−. According to the observation of high level of total wet acid deposition, the more detailed spatio-temporal monitoring of rainfall-related acid deposition (particularly sulfur deposition) is required to understand its potential environmental effects in the aquatic ecosystem of the earth surface.

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Section: Temporal Variation Influencing Causes and Neutralization Coefficients Of Ion Compositionssupporting

confidence: 92%

Rainwater chemistry observation in a karst city: variations, influence factors, sources and potential environmental effects

Zeng¹,

Han²

2021

PeerJ

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“…SO loaded into mantle and crustal rocks during hydrothermal alteration in the Cretaceous and now present in salts and/or adsorbed to other minerals (Oeser et al, 2012 (Keresztesi et al, 2020;Vong, 1990). Oxidation of sulfide minerals stored in the dunites and harzburgites from prior generations of magmatic processes and/or aqueous alteration is another potential source of O via catalytic transition metal (Fe/ Mn) redox cycling, and sulfide oxidation tends to occur 3 10 to 6 10 times faster when mediated by microbes (Luther et al, 2011;Singer & Stumm, 1970).…”

Section: Microbial Ecologymentioning

confidence: 99%

Aqueous Geochemical and Microbial Variation Across Discrete Depth Intervals in a Peridotite Aquifer Assessed Using a Packer System in the Samail Ophiolite, Oman

et al. 2021

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The potential for molecular hydrogen ( 2 H ) generated via serpentinization to fuel subsurface microbial ecosystems independent from photosynthesis has prompted biogeochemical investigations of serpentinization-influenced fluids. However, investigations typically sample via surface seeps or open-borehole pumping, which can mix chemically distinct waters from different depths. Depthindiscriminate sampling methods could thus hinder understanding of the spatial controls on nutrient availability for microbial life. To resolve distinct groundwaters in a low-temperature serpentinizing environment, we deployed packers (tools that seal against borehole walls during pumping) in two 400m -deep, peridotite-hosted wells in the Samail Ophiolite, Oman. Isolation and pumping of discrete intervals as deep as 108m to 132m below ground level revealed multiple aquifers that ranged in pH from 8 to 11. Chemical analyses and 16S rRNA gene sequencing of deep, highly reacted

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“…Risk evaluation is a widely used method to evaluate the elevated risk of health issues in individuals exposed to high concentrations of particulate matter. From region to region the PM concentration and chemical composition show significant variation, which mainly depends on the geographical position, specific climate condition, anthropogenic activities and combustion sources [11] , [15] , [21] , [22] , [23] , [29] , [3] .…”

Section: Introductionmentioning

confidence: 99%

Spatial and long-term analysis of rainwater chemistry over the conterminous United States

Cited by 62 publications

References 56 publications

Rainwater chemistry observation in a karst city: variations, influence factors, sources and potential environmental effects

Rainwater chemistry observation in a karst city: variations, influence factors, sources and potential environmental effects

Aqueous Geochemical and Microbial Variation Across Discrete Depth Intervals in a Peridotite Aquifer Assessed Using a Packer System in the Samail Ophiolite, Oman

The human health risk assessment of particulate air pollution (PM2.5 and PM10) in Romania

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