The River Rhine as a source of micropollutants in the canal sediments of the city of Delft (The Netherlands)

2003 ◽  
Vol 48 (10) ◽  
pp. 143-150 ◽  
Author(s):  
P. Kelderman ◽  
Y. Xuedong ◽  
Q. Wenchuan ◽  
W.M.E. Drossaert

This paper presents a statistical analysis of the pollution levels for heavy metals and organic micropollutants at 182 sediment stations in the city canals of Delft. High pollution levels were especially observed in the inner city canal sediments, probably related to the import of polluted river Rhine water. In contrast, the more-or-less isolated outer city sites were generally much less polluted. Regression analysis on the database generally showed highly significant correlations between individual heavy metal contents. The heavy metal contents were usually significantly correlated with polycyclic aromatic hydrocarbons (PAHs) as well. This points to one or more common sources for these micropollutants. Factor analysis and the K-means cluster analysis technique were applied on the above database; it showed a large cluster of stations, nearly all located in the outer city of Delft, characterized by relatively low heavy metal and organic micropollutants’ contents. Another cluster of 18 stations, mostly located in the inner city of Delft, possessed intermediate pollution levels, directly related with the supply of river Rhine water. Finally, the stations of a third cluster, situated in the inner city as well, were highly polluted, especially by local pollution sources. The above hypotheses were further supported by a more detailed statistical analysis for a number of inner city stations, together with 10-year river Rhine pollution data.

1994 ◽  
Vol 29 (3) ◽  
pp. 241-248 ◽  
Author(s):  
A. Rosso ◽  
M. Lafont ◽  
A. Exinger

The aim of this research is to describe the impact of heavy metals contaminating sediments on oligochaete communities. Sediments were collected three times (June, August, October 1991) for chemical and biological analyses in 15 sites situated in the river I11 and its tributaries (Rhine Basin, France). The sediments are characterized by high contents of heavy metals, mainly Hg, Cu, Cr, Pb, Zn from below the city of Mulhouse. The majority of sediments are heavily loaded with organic matter and organic micropollutants are also present. Oligochaete communities are rich in species. However five species only, considered as pollution-tolerant or opportunist, are significantly present and abundant. The percentages of Tubificidae without hair setae are positively related to heavy metal contents of the sediments, and the percentages of Tubificidae with hair setae are negatively related. Several species such as N. communis, N. barbata, D. digitata and Bothrioneurum sp. are considered as tolerant to heavy metals; on the contrary L. claparedeanus, L. udekemianus, Stylodrilus sp. and S. josinae are considered as intolerant. The reproductive strategy of oligochaetes in contaminated areas and the role of organic matter are discussed. Several recommendations are given for the rehabilitation of the investigated sites.


2012 ◽  
Vol 518-523 ◽  
pp. 1621-1624 ◽  
Author(s):  
Lin Hua Sun

Heavy metal (Zn, V, Cr, Co, Cu and Pb) concentrations in bottom sediments from Tuo River in Suzhou City have been analyzed for determing their average levels and distribution concentrations, and statistical analysis (correlation, cluster and principle component) have been taken place for evaluating their lithogenic and/or anthropogenic sources. The results imply that the concentration of metals following the order Co>Zn>V>Cr>Cu>Pb with homogeneous distribution. The lithogenic metals (V, Cr and Co) are enriched out of the city, whereas the anthropogenic (industry and vehicle related) metals (Zn, V, Cu and Pb) are enriched in the city.


2012 ◽  
Vol 7 (1) ◽  
pp. 74-77
Author(s):  
Armen Saghatelyan ◽  
Lilit Sahakyan ◽  
Olga Belyaeva

This research is focused on the level of heavy metal contents in dust of a near-ground layer of atmosphere. The dust load level was evaluated as medial. Indicated was a quality composition of dominating dust pollutants. The level of summary load of metals was low.


1994 ◽  
Vol 30 (10) ◽  
pp. 207-212 ◽  
Author(s):  
Yu Kuang-Chung ◽  
Ho Shien-Tsong ◽  
Chang Jiunn-Kae ◽  
Lai Sheue-Duan ◽  
Wang Chao-Hsiung

The correlations of benthic invertebrates, sediments and water quality were investigated at two stations in the Ell-Ren river of Taiwan by means of statistical analysis every two months during a one year period. A total of 8 aquatic insect species and 2 annelid species were collected. Based upon the statistical analyses, several significant correlations for the population of benthic invertebrates and heavy metal contents of sediment were found between Simulium sp. and “adsorptive and exchangeable” lead, Simulium sp. “bound to carbonates” copper as well as Baetis sp. and “bound to carbonates” chromium. Results of stepwise multiple regression indicated that the heavy metal contents of sediment could explain a considerable portion of the variance in the population of benthic invertebrates. “Adsorptive and exchangeable” lead accounted for 86.2% of the variance of the population of Simulium sp. while “Bound to carbonates” chromium retained 81.5% of the variance of the population of Baetis sp.


2016 ◽  
Vol 29 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Monira Begum ◽  
SM Imamul Huq

A research was done to focus on the level of heavy metal pollution by three point sources in Barisal, a southern district of Bangladesh. Soils were collected from four distinct distances (100 m, 200 m, 400 m and 600 m from the point of discharge) of three different industrial sites, namely textile, cement and medicine industry. Maximum build-up of heavy metals was found in the vicinity of textile industry, while the minimum was observed in soils of medicine industry. Cu, Cr, Cd, Mn and Ni were found in the highest concentrations in textile industry, while As, Pb and Zn were found in the highest content near the cement industry. Negative correlation values indicate that pollution levels decrease with the increasing distance from the pollution sites.Bangladesh J. Sci. Res. 29(1): 11-17, June-2016


2014 ◽  
Vol 6 (3) ◽  
Author(s):  
Tímea Vince ◽  
György Szabó ◽  
Zoltán Csoma ◽  
Gábor Sándor ◽  
Szilárd Szabó

AbstractIn the present study we examined the Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn contamination levels of the soils of Berehove, a small city in West-Ukraine. As a first step we determined the spatial distribution of the heavy metal contents of the urban soils; then, by studying the land use structure of the city and by statistical analysis we identified the major sources of contamination; we established a matrix of correlations between the heavy metal contents of the soils and the different types of land use; and finally, we drew a conclusion regarding the possible origin(s) of these heavy metals. By means of multivariate statistical analysis we established that of the investigated metals, Ba, Cd, Cu, Pb and Zn accumulated in the city’s soils primarily as a result of anthropogenic activity. In the most polluted urban areas (i.e. in the industrial zones and along the roads and highways with heavy traffic), in the case of several metals (Ba, Cd, Cu, Pb, Zn) we measured concentration levels even two or three times higher than the threshold limit values. Furthermore, Cr, Fe and Ni are primarily of lithogenic origin; therefore, the soil concentrations of these heavy metals depend mainly on the chemical composition of the soil-forming rocks.


Author(s):  
Cleiton Junior Ribeiro Lazzari ◽  
Vilmar Müller Junior ◽  
Lucas Benedet ◽  
Rafael da Rosa Couto ◽  
Jucinei José Comin ◽  
...  

Composting is an important tool for recycling and proper disposal of organic waste. However, in small-scale composting, where total soil sealing and leachate collection is not carried out, elements such as P, Cu, Zn, Cd, Cr, Ni and Pb may accumulate in soil. This study aimed to assess phosphorus and heavy metal contents in soils of areas used for small-scale food waste composting. In order to do this, we sampled soil depths of 0-5, 5-10, 10-20, 20-30 and 30-40 cm of four areas with composting times of 16, 12, 7 and 1 year, in addition to four reference areas. All the study areas are located in the city of Florianópolis, Santa Catarina state, Brazil. We determined available P, Cu and Zn contents and total Cu, Zn, Cd, Cr, Ni and Pb contents in the soil samples. We found that the production of organic compost directly on the soil generally promoted increases in available P contents, which were above acceptable environmental limits, especially at the uppermost soil layers. Still, the presence of Cu, Zn, Cd, Cr, Ni and Pb was not an environmental liability in the composting areas, as the contents found were below those recommended by legislation.


2016 ◽  
Vol 81 (4) ◽  
pp. 447-458
Author(s):  
Gordana Andrejic ◽  
Tamara Rakic ◽  
Jasmina Sinzar-Sekulic ◽  
Nevena Mihailovic ◽  
Jasmina Grubin ◽  
...  

In order to assess heavy metal pollution in the city of Belgrade (Serbia) concentrations of V, Cr, Mn, Co, Ni, Cu, Zn, Cd and Pb were measured on 18 topsoil samples collected in the proximity to central urban boulevards and in urban parks. In addition, concentrations of specified elements were determined in leaves of three evergreen plant species Buxus sempervirens L., Mahonia aquifolium (Pursh) Nutt. and Prunus laurocerasus L. so as to estimate their sensitivity to heavy metal pollution. Even though various types of soils from different quarts of Belgrade were sampled, their heavy metal contents were very similar, with somewhat higher concentrations of almost all elements detected in the proximity to high traffic roads. Generally, concentrations of heavy metals in leaves of investigated plant species paralleled the heavy metal concentrations found in their respective soils and were higher in plants sampled from boulevards then from urban parks. Since investigated plant show no visible injuries induced by detected heavy metal pollution these species are suitable for the successful urban landscaping.


2019 ◽  
Vol 29 (3SI) ◽  
pp. 411
Author(s):  
N. H. Quyet ◽  
Le Hong Khiem ◽  
V. D. Quan ◽  
T. T. T. My ◽  
M. V. Frontasieva ◽  
...  

The aim of this paper was the application of statistical analysis including principal component analysis to evaluate heavy metal pollution obtained by moss technique in the air of Ha Noi and its surrounding areas and to evaluate potential pollution sources. The concentrations of 33 heavy metal elements in 27 samples of Barbula Indica moss in the investigated region collected in December of 2016 in the investigated area have been examined using multivariate statistical analysis. Five factors explaining 80% of the total variance were identified and their potential sources have been discussed.


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