Influences of single and binary metal mixtures on microbial growth in sandy soil of infiltration site. (2018)

• Record Type: Journal Article
• Authors: Ko, Kyung-Seok; Ha, Kyoochul; Kong, In Chul
• Is Part Of: International journal of environment and pollution. Volume 63:Number 3(2018)
• Page Start: 178
• Page End: 191
• Publication Date: 2018
• Subjects: adenosine triphosphate -- ATP -- dehydrogenase activity -- DHA -- metal mixture -- microbial growth -- viable cell count -- VCC; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

Abstract

Effects of single and binary mixture metals on microbial biofilm growth were evaluated on silty-sandy soil collected from an artificial storage and recovery (ASR) site. The effects of metals on the adenosine triphosphate (ATP) content and viable cell count (VCC) showed considerable differences depending on the metal types and concentrations, whereas dehydrogenase activity (DHA) did not change significantly. The sensitivity of the ATP and VCC measurements was also greater than that of DHA. Toxicity based on the ATP content was Cu ≈ Cd > Cr ≈ As(III) ≈ As(V). In the presence of the binary metal mixtures, a synergistic and additive effect was commonly observed for the ATP contents and VCC, respectively. Therefore, understanding the effects of metal mixtures is essential for proper assessment of the contaminated environment. This study also indicated that the evaluation of metal effects may be considerably influenced by the endpoints of microbial growth measurement.