Estimating the Impact of Inflow on the Chemistry of Two Different Caldera Type Lakes Located on the Bali Island (Indonesia)

Water

ឺneta Polkowska²  Lidia Wolska²  Leszek Łᆜzyński³  Marek Ruman¹  Sara Lehmann²  Katarzyna Kozak²  Magdalena Matysik¹  Damian Absalon¹  Say-Leong Ong⁴ 

[1] Faculty of Earth Sciences, University of Silesia, 60 Będzińska St., Sosnowiec 41-200, Poland; E-Mails:;Department of Analytical Chemistry, Chemical Faculty, Gdansk University of Technology (GUT), 11/12 G. Narutowicza Str., Gdańsk 80-233, Poland; E-Mails:;Laboratory of Applied Geology, Institute of Oceanography, University of Gdansk, Piłsudskiego Str 46, Gdynia 81-378, Poland; E-Mail:Department of Analytical Chemistry, Chemical Faculty, Gdansk University of Technology (GUT), 11/12 G. Narutowicza Str., Gdańsk 80-233, Poland;

关键词: caldera type lake;    water pollution;    ions;    trace elements;    total organic carbon (TOC);    fatty acids;   

DOI  :  10.3390/w7041712

来源: mdpi

【 摘 要 】

This paper is a preliminary attempt to assess the composition of pollutants in two different caldera lakes situated in the Indonesian Archipelago: Batur and Bratan. Both lakes are characterized by largely different physico-chemical regimes; Batur Lake is located in an area that is currently volcanically active, unlike Bratan Lake. The latter is much smaller and shallower than Batur Lake. The concentration of pollutants in the Indonesian equatorial lakes is largely unknown, and the impact of both biological and geothermal processes on their distribution requires attention. This study shows that the concentrations of cations (Na⁺, K⁺, Mg²⁺, Ca²⁺), anions (SO₄²⁻, F⁻, Cl⁻, Br⁻) and trace elements (Li, B, Al, V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Cd, Sn, Cs, Ba, Pb, U, Be, Ag, Sb, Tl, Bi) differ greatly between both lakes. Most chemical parameters determined in volcanically influenced Batur Lake were tens to hundreds times higher than in Bratan Lake, and in the case of trace metals, the ratios of the two lakes’ concentrations reached several hundreds. This study also compared the composition and concentration levels of organic compounds in both lakes, such as fatty acids, halocarbons and esters. On the other hand, the content of organic chemicals in the lakes also results from biological activity by phytoplankton, zooplankton and bacteria.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.