Effects of airborne fluoride on soil and vegetation

Koblar, Alenka; Tavčar, Gašper; Ponikvar‐Svet, Maja

doi:10.1016/j.jfluchem.2011.05.022

Cited by 35 publications

(15 citation statements)

References 14 publications

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“…He also observed higher fluoride concentrations near the emitter, mainly from the leeward side. Similar observations have been presented by Koblar et al (2011). …”

Section: Introductionsupporting

confidence: 92%

Fluoride pollution of atmospheric precipitation and its relationship with air circulation and weather patterns (Wielkopolski National Park, Poland)

Walna

Kurzyca

Bednorz

et al. 2012

Environ Monit Assess

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A 2-year study (2010–2011) of fluorides in atmospheric precipitation in the open area and in throughfall in Wielkopolski National Park (west-central Poland) showed their high concentrations, reaching a maximum value of 2 mg/l under the tree crowns. These high values indicate substantial deposition of up to 52 mg/m2/year. In 2011, over 51 % of open area precipitation was characterized by fluoride concentration higher than 0.10 mg/l, and in throughfall such concentrations were found in more than 86 % of events. In 2010, a strong connection was evident between fluoride and acid-forming ions, and in 2011, a correlation between phosphate and nitrite ions was seen. Analysis of available data on F− concentrations in the air did not show an unequivocal effect on F− concentrations in precipitation. To find reasons for and source areas of high fluoride pollution, the cases of extreme fluoride concentration in rainwater were related to atmospheric circulation and weather patterns. Weather conditions on days of extreme pollution were determined by movement of weather fronts over western Poland, or by small cyclonic centers with meteorological fronts. Macroscale air advection over the sampling site originated in the western quadrant (NW, W, and SW), particularly in the middle layers of the troposphere (2,500–5,000 m a.s.l.). Such directions indicate western Poland and Germany as possible sources of the pollution. At the same time in the lower troposphere, air inflow was frequently from the north, showing short distance transport from local emitters, and from the agglomeration of Poznań.

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“…He also observed higher fluoride concentrations near the emitter, mainly from the leeward side. Similar observations have been presented by Koblar et al (2011). …”

Section: Introductionsupporting

confidence: 92%

Fluoride pollution of atmospheric precipitation and its relationship with air circulation and weather patterns (Wielkopolski National Park, Poland)

Walna

Kurzyca

Bednorz

et al. 2012

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…The stinging nettle plants were obtained in nutrient rich soil environment (Razori, Slovenia) free from anthropogenic F À sources [7]. Nettle was spread by branching rhizomes.…”

Section: Plant Spreading Growth Conditions and Growthmentioning

confidence: 99%

“…The following assumptions were made: (1) the target biomass production of the aboveground tissues of the nettle is up to 700 g m À2 [27]; (2) the aboveground tissues contain 51-110 mg F kg À1 ; (3) assumed bulk density of the soil is 1.3 t ha À1 ; (4) normal soils contain 100-600 mg F kg À1 [5], of which 0.05-0.5% is in the form of F À [6,7]; and (5) only F À from the top 20 cm layer of the soil can be extracted. Based on this model it was estimated that 0.36-0.77 kg of F À can be extracted from the top layer of 1 ha of the soil.…”

Section: Bioaccumulation and Translocation Of F In The Nettlementioning

confidence: 99%

“…The average F contents in soil range from about 100-600 mg kg À1 [5], and of F À contents from about 0.05-0.5% of the F contents [6,7]. The minimum of F solubility is at pH 6.0-6.5; the greater solubility under acidic conditions can be explained by the formation of AlF x complexes, whereas under alkaline conditions by desorption of F À as a result of repulsion by the negatively charged surfaces [8].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been conducted on heavy metals (Cu, Zn, Pb, Cd, Hg, Cr) uptake by U. dioica [28][29][30][31]. Recently increased contents of F were reported in the nettle (Urtica dioica L.) from F À contaminated area thus nettle has been suggested as a promising passive bioindicator for monitoring phytotoxic effects of F À in the soil on the vegetation [7].…”

Section: Introductionmentioning

confidence: 99%

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