Magnetic measurements and pollutants of sediments from Cauvery and Palaru River, India

Variations in the Concentration of Magnetic Minerals and Heavy Metals in Suspended Sediments from Citarum River and Its Tributaries, West Java, Indonesia

“…In general, these Fe and Ti contents were relatively higher than those of the report in the literature for other rivers (Fe in [8,9,28,29,[32][33][34], and Ti in [32,33]). Moreover, the Fe contents in the suspended sediment samples exceeded the environmental safety threshold, which is 20 mg/kg according to [35].…”

“…In general, these Cu, Zn, and V contents were relatively higher than those of the reports in the literature for other rivers (Cu and Zn [8,9,28,29,32,34] and V [8,34]). The values of Cu content were generally lower than the environmental contamination threshold, which is 110 mg/kg according to [36], except for samples C and D, which represent densely-populated tributaries in the southern part of Bandung.…”

“…Comparing the river sediment to that from elsewhere [5,8,9,[27][28][29], the values of χ LF in the Citarum River were relatively high. This is to be expected, as the samples used in the other studies were taken from a non-volcanic catchment area.…”

Magnetic, chemical and radionuclide studies of river sediments and their variation with different physiographic regions of Bharathapuzha river, southwestern India

“…Previous studies in Bharathapuzha River showed mean values of  higher than in others rivers of southern India, such as Palaru, Cauvery, Vellar and Ponnaiyar rivers (Chaparro et al, 2008(Chaparro et al, , 2011(Chaparro et al, , 2013. Furthermore, Krishnamoorthy et al (2014) found statistically significant correlations between  and the activity concentration of natural radionuclides ( 40 K and 226 Ra).…”

“…Magnetic iii parameters have been widely used in environmental magnetism and some of them have been proven to be good proxies for environmental changes and contamination. Thus, magnetic proxies allow rivers to be assessed for reduced or wide extensions using the bed sediments (e.g., Scholger, 1998;Magiera et al, 2002;Jordanova et al, 2004;Desenfant et al, 2004;Chaparro et al, 2004Chaparro et al, , 2008Chaparro et al, , 2013Knab et al, 2006;Yang et al, 2007;Franke et al, 2009;Zhang et al, 2011;Sandeep et al, 2011).…”