Geochemical investigations on atmospheric precipitation in a medium-sized city (G�ttingen, F.R.G.)

Ruppert, Hans

doi:10.1007/bf00280728

Cited by 31 publications

(3 citation statements)

References 13 publications

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“…Considering the position of soils in the natural cycle of the elements the close contact to the atmosphere, biosphere, and hydrosphere may explain these data. As Peirson and others (1973) and Ruppert (1975) showed, heavy metals are enriched in airborne particles by a factor of 10-100 (normalized according to the A[ content). The soluble components are washed out of the soils by rain and later partly concentrated in shales and partly in seawater.…”

Section: Resultsmentioning

confidence: 90%

Potential metal pollution in grass and soil samples around brickworks

Brumsack¹

1977

Geo

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ABSTRACT/42 soil samples, chosen from 4 transects around orickworks in the G6ttingen area (W. Germany), were examined for the toxic elements Bi, TI, Cd, Pb, and Zn, as well as Fe, Mn, and ~rganic carbon. In 44 plant samples (grass) taken from the same sites the trace elements Cd, Pb, and Zn and the matrix elements K, Ca, Mg, and Na, were determined. Around brickworks, which are situated in an unfavorable morphological region, small anomalies could be :letected. A comparison with a highly polluted area around a leadzinc smelter shows the relatively low level of pollution of the 36ttingen area. ~y investigating 3 different sets of clay and bricks, the loss of some Jolatile heavy metals in the process of converting clay to brick could oe estimated; the losses are between 17 and 83 percent. Extrapolating this to the entire German Federal Republic, Cd, TI, Bi, and Hg are emitted in the 10-30 (tons per year) range, Pb and Zn n the 500-1000 t/y range. The contamination of the environment ~y these metals from brickworks is about equal to that released 3y the coal as it is burned.

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Section: Resultsmentioning

confidence: 90%

Potential metal pollution in grass and soil samples around brickworks

Brumsack¹

1977

Geo

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“…Phosphorus loading from bulk atmospheric deposition and lakeside septic tanks were lumped together and assumed to remain constant at 44 and 56 percent, respectively. Atmospheric input was based on recorded precipitation and P content determined previously in rainfall collected 5 km from the lake (Johnson, et a,!, 1966) and using a factor of 1.5 to convert soluble to total P (Ruppert, 1975). The estimate for septic tank leachate was based on a per capita loading rate of 0.88 kg yr-l and an 80 percent soil retention factor (Gilliom, 1978).…”

Section: Internal Loading Calculationsmentioning

confidence: 99%

ALUM CONTROL OF INTERNAL PHOSPHORUS LOADING IN A SHALLOW LAKE¹

Welch¹,

Michaud²,

Perkins³

1982

J American Water Resour Assoc

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Alum treatment of a shallow lake, with mean depth 2 m and area 137 ha, curtailed internal loading of P for at least one ear. Mean summer total P and chl a decreased from 76 and 27μg l−1, respectively, in 1978 before treatment. to 29 and 14 μ l−1, while mean summer Sed transparency increased from 1.6 to 2.2 m and blue green algae were no longer dominant. Macrophyte biomass and distribution retuned during the post‐alum year, 1980‐1981, to previous levels after a 1979 four‐month lake level drawdown had reduced biomass by 84 percent The improved transparency, resulting from the decrease in chl a following treatment, could encourage greater biomass of macrophytes in the deeper area of the lake. Recovery of macrophyte biomass to predrawdown levels may restore internal loading of P through enrichment of deep water sediments during winter dieback and decomposition.

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“…The most common sources of Ca 2+ and SO 4 2À are rainfall, wind deposition, mineral weathering, fossil salts, and various surface and groundwater occurrences which cause redistribution of accumulated salts, often as a result of man's activities (Bresler et al, 1982). Increased concentrations of atmospheric sulfur components are often found near industrial areas (Matschullat et al, 2000) and in cities (Ruppert, 1975). They can increase the quantity of SO 4 2À added annually from the atmosphere to soils of such regions.…”

Section: Introductionmentioning

confidence: 99%