Groundwater characterization in major industrial and residential locations of Lagos metropolis

2019 ◽  
Vol 29 (1) ◽  
pp. 169-179
Author(s):  
Lekan Taofeek Popoola
2019 ◽  
Vol 18 (9) ◽  
pp. 1967-1976
Author(s):  
Tiberiu Frentiu ◽  
Marin Senila ◽  
Costel Sarbu ◽  
Oana Cadar ◽  
Calin Baciu ◽  
...  

2016 ◽  
Author(s):  
Abigail Burt ◽  
◽  
Desmond R.B. Rainsford ◽  
André Pugin ◽  
Barbara Dietiker ◽  
...  

1994 ◽  
Vol 28 (4) ◽  
pp. 640-661 ◽  
Author(s):  
Alejandro Portes ◽  
Richard Schauffler

The language adaptation of second generation children is explored in the context of the history of linguistic absorption and bilingualism in America. Strong nativist pressures toward monolingualism have commonly led to the extinction of immigrant languages in two or three generations. Contemporary fears of loss of English dominance are based on rapid immigration during recent decades and the emergence of linguistic enclaves in several cities around the country. This article explores the extent of language transition and the resilience of immigrant languages on the basis of data from south Florida, one of the areas most heavily affected by contemporary immigration. Results from a sample of 2,843 children of immigrants in the area indicate that: 1) knowledge of English is near universal; 2) preference for English is almost as high, even among children educated in immigrant-sponsored bilingual schools; 3) preservation of parental languages varies inversely with length of U.S. residence and residential locations away from areas of ethnic concentration. Hypotheses about other determinants of bilingualism are examined in a multivariate framework. The relationships of bilingualism to educational attainment and educational and occupational aspirations are also explored.


2009 ◽  
Vol 15 (4) ◽  
pp. 299-304 ◽  
Author(s):  
Clara H. Mulder ◽  
Thomas J. Cooke

2018 ◽  
Vol 30 (1) ◽  
pp. 93-108 ◽  
Author(s):  
Andrea Zanini ◽  
Emma Petrella ◽  
Anna Maria Sanangelantoni ◽  
Letizia Angelo ◽  
Beatrice Ventosi ◽  
...  

2010 ◽  
Vol 10 ◽  
pp. 742-759 ◽  
Author(s):  
Hang Thi Nguyen ◽  
Chan Goo Park ◽  
Jin-A Kim ◽  
Je-Seung Lee ◽  
Jin-Hong Lee ◽  
...  

Concentrations of 17 trace metals bound in total suspended particulate (TSP) were measured at four urban residential locations (Jong Ro [JR], Gwang Jin [GJ], Gang Seo [GS], and Yang Jae [YJ]) in Seoul, Korea from February to July 2009. The maximum concentrations of metals were recorded by Fe in the range of 2599 (JR) to 2914 ng m-3(GJ), while the least values were observed from Ag or Co with a few ng m-3. The relative ordering of the mean concentration (ng m-3) at these sites is generally found on the order of Fe > Zn > Ba > Mn > Pb > Cu > B > Cr > Ni > Sr >V > As > Li > Cd > Mo > Co > Ag or with a few exceptions (e.g., a reversal between Ba and Mn or between Ni and Sr). Calculation of the enrichment factor suggests the significant role of man-made processes on such metals as Cd, Zn, and Pb. Inspection of the temporal patterns indicates the peak occurrence of most metals during the spring season due in part to the Asian Dust (AD) event. However, according to the factor analysis, sources of these metals were dominated by both resuspended soil/road dust and the combustion of fossil fuels. The overall results of our study suggest that the interaction between the environmental conditions and roadside traffic activities are paramount in explaining the metal pollution in these urban residential areas.


2019 ◽  
Vol 83 (8) ◽  
pp. 1682-1688 ◽  
Author(s):  
Takeyuki Kiguchi ◽  
Kosuke Kiyohara ◽  
Tetsuhisa Kitamura ◽  
Chika Nishiyama ◽  
Daisuke Kobayashi ◽  
...  

2018 ◽  
Vol 59 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Diana Mance ◽  
Davor Mance

We tested the validity of the traditional hypothesis of a causal effect between rainfall occurrence, groundwater discharging into the sea, and marine microbial contamination. For groundwater characterization, we used the \(^18 O\) isotope. This stable isotope, together with 2 H, proved to be a useful physical, naturally occurring tracer primarily due to its abundance variations at different stages of water cycle. Test locations include Bakar Bay and selected adjacent Rijeka city beaches (Croatia). To test for statistical associations, we used the Panel Data Pairwise Granger Causality test. At examined locations, we found statistically significant relationships between the amount of rainfall and the abundance of \(^18 O\) isotope in groundwater, as well as relationships between the abundance of \(^18 O\) isotope in groundwater and faecal bacteria concentrations. Accordingly, \(^18 O\) isotope, when used as an indicator for the functioning of karstic groundwater systems, may also be used as the predictor of faecal contamination of bathing waters in associated karst littoral areas. We believe this physical method could be a valuable addition to present methods of predicting microbiological contamination and economic allocation of stock and flow pollutants in scarce common pool resources as fresh water basins, springs and beaches.


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