scholarly journals Reboisement de sites pollués – Enseignements tirés d'une étude de cas avec des métaux lourds | Reforestation of polluted soils – results of a case study on heavy metals

2006 ◽  
Vol 157 (5) ◽  
pp. 157-161 ◽  
Author(s):  
Laure Steiner ◽  
Walter Rosselli ◽  
Jean Combe ◽  
Vincent Barbezat ◽  
Alexandre Buttler

Les Abattes (Le Locle, Canton Neuchâtel) is an ancient dump contaminated by metals, like thousands of others in Switzerland,which, according to the law, does not require a reclaiming. Local trees have been grown on this site and data have been collected for 15 years between 1991 and 2005. Lessons grown from this experience are mixed. The plantation has stabilised the soil physically and immobilised the metals more rapidly than natural pioneer plants would. However growing trees have not been able to extract enough metals from soil. The risk of a diffuse metal contamination of surface water and food chain is still present. Therefore reforestation of low-contaminated sites has to be seen as a temporary solution requiring a continuous supervision in a longterm. At best it could provide timber under certain conditions. It is recommended to clearly indicate these constraints in the forest guiding plans which are now being elaborated.

2002 ◽  
Vol 82 (1-2) ◽  
pp. 33-43 ◽  
Author(s):  
K. Chandra Sekhar ◽  
K. Rajni Supriya ◽  
C.T. Kamala ◽  
N.S. Chary ◽  
T. Nageswara Rao ◽  
...  

2008 ◽  
Vol 7 (3) ◽  
pp. 263-267 ◽  
Author(s):  
Brindusa Robu ◽  
Laura Bulgariu ◽  
Dumitru Bulgariu ◽  
Matei Macoveanu
Keyword(s):  

2017 ◽  
Vol 29 (2) ◽  
pp. 133-141
Author(s):  
Farzana Yasmin ◽  
Sayma Khanom ◽  
Md Sunjid Sultan Ferdous

This study was carried out in order to assess the effect of industrial effluents on the surface water and sediment around BSCIC industrial area, Narayanganj. Different parameters such as TDS, DO, pH, EC, Turbidity, BOD, COD, and heavy metals such as Pb, Zn, Cd, Mn, Cr and Ni were investigated. The results showed that, different industries inside the BSCIC area discharge effluents composed of various chemicals at considerably higher levels compared to pollution limits of inland surface water standard given by DoE. Significantly higher levels of EC (3540 ?S/cm), TDS (3862 mg/l), BOD (143.71 mg/l) and COD (396.30 mg/l) were found in the water. Also a higher level of heavy metals along with high pH was found both for the water and sediment around the BSCIC area. A significant correlation was found between the pH, EC and heavy metal concentration of the collected water samples. The above findings point out that the water around the studied area is quite polluted by the industrial activities of the BSCIC area and malicious for surrounding environment.Bangladesh J. Sci. Res. 29(2): 133-141, December-2016


Author(s):  
Ilarie IVAN ◽  
Liana MURESAN ◽  
Teodora DEAC

Ambient  air  quality in  Cluj  County is  determined  by the  number  of pollutants,  including heavy metals represented by As, Cd, Cr, Cu, Hg, Ni, Se, Zn and especially Pb, especially due to the relatively  large quantities found in  the  environment.  Lead can’t  be degraded naturally,  affecting the environment and human health, including the accumulation in the food chain. The amount of lead in the  ambient  air can  be  determined theoretically from  the  emission  inventories and  in  practice by laboratory  processing  of  the filters that particulate  matter sampling was  performed, followed  by  the mineralization of samples and  the  determination of  heavy  metals by atomic  absorption spectrometry (AAS). All  the  data in  this article  was obtained  from activities  carried  out in  collaboration with the Regional  Agency for  Environmental  Protection Cluj-Napoca. Air  Quality  in Cluj  County has  been monitored  between 2007  and  2011 by determining  the  concentration of Pb in  particulate  matter (PM10), determined gravimetrically  with automatic  monitoring stations for  air  quality. Emissions inventory conducted in  collaboration  with Regional  Agency for  Environmental  Protection Cluj - Napoca showed  that Pb emissions dropped significantly in recent  years, in  Cluj  county. The  paper concludes  with recommendations  to local  government to  reduce pollution in  general  and lead  in particular.


2021 ◽  
Vol 6 (2) ◽  
pp. 177-184
Author(s):  
Mahidin Mahidin ◽  
M. Zaki ◽  
Asri Gani ◽  
Mariana Mariana ◽  
M. Irham ◽  
...  

Environmental pollution around the world in the last 10 years has continued to increase with increasing industrial growth. Environmental pollution has reduced the availability of clean water. Clean water is the main thing for all living things on this earth. Therefore, environmental pollution that occurs in the clean water crisis must be handled as soon as possible and reduced by various effective policies. The main focus of this research is to analyze heavy metal pollution on the surface of the water, clean water, and sediments caused by industrial activities. This research is a field study by taking samples directly at the location and then analyzing them in the laboratory. The results of the analysis showed that the highest heavy metal Fe on the water surface was found in Bireuen Regency by 0.28% compared to Lhokseumawe City with 0.0029% and Aceh Utara 0.0029%. Meanwhile, the highest heavy metals contained in clean water were recorded in Bireuen and Lhokseumawe City at 0.007% and 0.0064%, respectively. The results of the heavy metal analysis in the highest sediment were found in North Aceh at 42.93% compared to 8.02% and 18.12% for Bireuen and Lhokseumawe. Overall, the analysis carried out in this study shows that the surface water, clean water, and sediments have been contaminated by heavy metals. Meanwhile, the quality standard for surface water is 0.3 mg/l, net ai is 1.0 mg/l, and sediment is 20bj.


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