Atmospheric behaviour of oil-shale combustion fly ash in a chamber study

Teinemaa, Erik; Кирсо, У.; Strommen, Michael R.; Kamens, Richard M.

doi:10.1016/s1352-2310(01)00520-9

Cited by 18 publications

(19 citation statements)

References 26 publications

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“…The historical records for the emissions from power plants and previous studies of the temporal distribution of spherical fly ash particles in the sediments of some small lakes showed that the first signs of the impact of these emissions appeared in the 1920s and increased exponentially since the 1950s (Punning et al 1997). Evidence of atmospheric transport of PAHs adsorbed onto the smallest fly ash particles has been shown by many researchers (Trapido and Veldre 1996;Teinemaa et al 2002). Chamber experiments have identified the desorbed PAHs, PHE, FLT, pyrene, BaA, CHR, BbF and BaP (Teinemaa et al 2002).…”

Section: Pahs Distribution Patternsmentioning

confidence: 92%

“…Evidence of atmospheric transport of PAHs adsorbed onto the smallest fly ash particles has been shown by many researchers (Trapido and Veldre 1996;Teinemaa et al 2002). Chamber experiments have identified the desorbed PAHs, PHE, FLT, pyrene, BaA, CHR, BbF and BaP (Teinemaa et al 2002). Their molecular weight is from 178 to 252 and they belong to two-to five-ring PAHs.…”

Section: Pahs Distribution Patternsmentioning

confidence: 93%

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Historical changes in the concentrations of polycyclic aromatic hydrocarbons (PAHs) in Lake Peipsi sediments

Punning

Terasmaa

Vaasma

et al. 2008

Environ Monit Assess

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The distribution of 11 individual polycyclic aromatic hydrocarbons (PAHs) was analysed in a (210)Pb dated sediment core from the deepest area of Lake Peipsi and in four surface sediment samples taken from littoral areas. According to the concentrations in the core three groups of PAHs may be distinguished: (1) relatively stable concentrations of PAHs within the whole studied time interval; (2) very low concentrations in sediments accumulated before intensive anthropogenic impact (from 19th century up to the 1920s) following a slight increase and (3) an overall increase in PAH concentrations since the 1920s up to the present. Comprehensive analysis of PAHs in the core and monitoring data obtained in the 1980s together with the lithology of sediments show that an increase of anthropogenically induced PAHs correlates well with the history of fuel consumption in Estonia and speaks about atmospheric long-distance transport of PAHs. The continuous increase of PAH concentrations since the 1920s do not support the earlier hypothesis about the dominating impact of the oil shale fired power plants near the lake, because their emissions decreased significantly in the 1990s. The concentration of PAHs in the deep lake core sample correlates well with the content of organic matter, indicating absorption and co-precipitation with plankton in the sediment.

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Section: Pahs Distribution Patternsmentioning

confidence: 92%

Section: Pahs Distribution Patternsmentioning

confidence: 93%

Historical changes in the concentrations of polycyclic aromatic hydrocarbons (PAHs) in Lake Peipsi sediments

Punning

Terasmaa

Vaasma

et al. 2008

Environ Monit Assess

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“…Much of the airborne plume research effort has gone into characterizing aerosol mass and sulfate gas‐to‐particle conversion rates because of the need to address PM 2.5 , acid deposition, and regional haze and because of the difficulty in sampling transient, heterogeneous plumes from a moving aircraft. To expand the number of data sets in this analysis, three laboratory studies [ Teinemaa et al , 2002; Dekati Ltd. , 2003; Lipsky et al , 2004] were included where conditions of dilution and residence time represented the mesoscale. Two of the laboratory studies and one ambient study were conducted in Europe, while 12 ambient data sets and the remaining laboratory data set were collected in North America.…”

Section: Selection Of Mesoscale Emission Size Distributionsmentioning

confidence: 99%

Aerosol size distribution modeling with the Community Multiscale Air Quality modeling system in the Pacific Northwest: 3. Size distribution of particles emitted into a mesoscale model

Elleman

Covert

2010

J. Geophys. Res.

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[1] In order to improve the Community Multiscale Air Quality modeling system (CMAQ) performance for ultrafine particle concentrations in the Pacific Northwest, CMAQ v4.4 was modified so that particles are input to the model with an appropriate size distribution. CMAQ's default emission size distributions are based on outdated measurements which underrepresent ultrafine particles. At the same time, the size distribution must represent the results of all processes between the point of emission and the smallest resolvable spatial scale of the model. As a computationally efficient and simple solution, size distributions were compiled from published modern observations for trafficdominated urban areas, power plants, and marine sources at the typical mesoscale air quality model spatial resolution of 4-15 km. CMAQ was modified so that all chemical species are input according to the emission size distribution of traffic-dominated urban areas because this source emits the majority of each aerosol species in the Pacific Northwest.

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“…Since commercial mining began in 1916, hills of semicoke and ash tailings from oil shale mines have accumulated throughout northeastern Estonia, particularly around the city of Narva (Toomik and Liblik, 1998; Brendow, 2002). Environmental degradation resulting from mine tailings hills includes sulfur and toxic metal contamination of soils and groundwater and the deterioration and destruction of forests (United Nations Economic Commission for Europe, 2001; Teinemaa et al, 2002). Both semicoke and ash also prove inhospitable to most life, at least in the near term.…”

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confidence: 99%

Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills

Shefferson

Kull

Tali

2008

American J of Botany

109

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Northeastern Estonia is home to extensive oil shale mines. Associated with these are desolate and environmentally damaging hills of ash and semicoke tailings. Interestingly, some of the first plants to colonize these hills are rare orchids. Here, we assess the identities of the mycorrhizal fungi associated with these orchids, in particular Epipactis atrorubens, Orchis militaris, and Dactylorhiza baltica, and compare them with mycorrhizal fungi from orchids from pristine habitat. Epipactis atrorubens associated with the widest breadth of fungi, including unnamed members of the basidiomycete family Tulasnellaceae and the potentially ectomycorrhizal ascomycetes Trichophaea woolhopeia and Geopora cooperi. Orchis militaris also associated with unnamed members of the Tulasnellaceae. Dactylorhiza baltica associated with Ceratobasidium albasitensis. In Epipactis and Orchis, the same fungi associated with plants in the pristine habitat as with those on ash hills. The tulasnelloid and ceratobasidioid fungi mycorrhizal with these orchids appear closely related to common orchid mycorrhizal fungi, while one of the ascomycetes mycorrhizal with E. atrorubens is closely related to a mycorrhizal fungus with E. microphylla. Our results suggest that these orchids and their fungi are not limited to pristine habitats and that environmentally polluted sites may present novel habitats that may be exploited for endangered plant conservation.

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Atmospheric behaviour of oil-shale combustion fly ash in a chamber study

Cited by 18 publications

References 26 publications

Historical changes in the concentrations of polycyclic aromatic hydrocarbons (PAHs) in Lake Peipsi sediments

Historical changes in the concentrations of polycyclic aromatic hydrocarbons (PAHs) in Lake Peipsi sediments

Aerosol size distribution modeling with the Community Multiscale Air Quality modeling system in the Pacific Northwest: 3. Size distribution of particles emitted into a mesoscale model

Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills

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