Trace Gases and Particles in the Atmospheric Boundary Layer at the Waldstein Site: Present State and Historic Trends

Klemm, Otto

doi:10.1007/978-3-662-06073-5_3

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…Wastewater was sampled as individual grab samples. The third aerosol sampling site was established at a forested rural site at the meteorological and air chemical station Waldstein situated in northeastern Bavaria, Germany (30). There, no direct influence of residential areas or WWTPs on the aerosol composition was assumed.…”

Section: Methodsmentioning

confidence: 99%

Sterols and Anionic Surfactants in Urban Aerosol: Emissions from Wastewater Treatment Plants in Relation to Background Concentrations

Radke

2005

Environ. Sci. Technol.

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Aerosol particles that are emitted from aeration tanks of wastewater treatment plants (WWTPs) can be enriched with environmentally relevant wastewater constituents. In this study, aerosol particles were sampled simultaneously at the pre-aeration tank of a municipal WWTP and at two urban locations approximately 1 km away from the WWTP to evaluate the significance of these aerosol emissions. Moreover, aerosol particles were sampled at a small wastewater irrigation facility and at a rural site. In aerosol particles and wastewater, six sterols (cholesterol, coprostanol, campesterol, beta-sitosterol, stigmasterol, stigmastanol) and anionic surfactants (expressed in terms of methylene blue active substances, MBAS) were quantified. The results showed significantly higher concentrations of sterols and MBAS at the WWTP than atthe urban locations. At the WWTP, average concentrations of cholesterol (848 +/- 321 pg m(-3)), coprostanol (1132 +/- 565 pg m(-3)), and MBAS (132 +/- 43 ng m(-3)) in aerosol were approximately twice as high. This can be attributed to emissions from the treatment tank. Coprostanol, a unique tracer for wastewater, was detected only occasionally at the urban locations. The results of this study show that the aeration of wastewater is a continuously operating local source for organic compounds in aerosol. The wastewater irrigation facility was a minor source of aerosol-bound sterols (coprostanol, 287 +/- 218 pg m(-3)) and anionic surfactants (64 +/- 32 ng m(-3)). Except for coprostanol, all compounds were also present in samples of rural aerosol.

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Section: Methodsmentioning

confidence: 99%

Sterols and Anionic Surfactants in Urban Aerosol: Emissions from Wastewater Treatment Plants in Relation to Background Concentrations

Radke

2005

Environ. Sci. Technol.

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History of the Waldstein Measuring Sites

Foken

Tenhunen

2017

Energy and Matter Fluxes of a Spruce Forest Ecosystem

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Reactive Trace Gas and Aerosol Fluxes

Held

Deventer

Meixner

et al. 2017

Energy and Matter Fluxes of a Spruce Forest Ecosystem

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Quantifying the atmosphere-surface exchange of reactive trace gases and aerosols is extremely important for a full understanding of biogeochemical cycles and their implications for air quality and climate. However, turbulent fluxes of reactive gases such as ozone and volatile organic compounds (VOC) as well as aerosol particles are still difficult to measure. Chemical reactions contribute to changes in trace gas or aerosol concentrations, and production or loss processes have to be carefully separated from turbulent transport. Also, for many trace gas measurements and for size-resolved and chemically speciated aerosol measurements, instruments are limited with respect to time resolution, sensitivity, and accuracy, which restricts their application in micrometeorological techniques. Here, we present flux measurements of reactive trace gases and aerosols above tall vegetation. We focus on ozone deposition and its implications for the NO/NO2/O3 triad, biogenic emissions of volatile organic compounds and their subsequent oxidation reactions, and finally, turbulent aerosol fluxes in a spruce forest ecosystem

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Trace Gases and Particles in the Atmospheric Boundary Layer at the Waldstein Site: Present State and Historic Trends

Cited by 5 publications

References 7 publications

Sterols and Anionic Surfactants in Urban Aerosol: Emissions from Wastewater Treatment Plants in Relation to Background Concentrations

Sterols and Anionic Surfactants in Urban Aerosol: Emissions from Wastewater Treatment Plants in Relation to Background Concentrations

History of the Waldstein Measuring Sites

Reactive Trace Gas and Aerosol Fluxes

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