World Academy of Science, Engineering and Technology
Published August 27, 2008 | Version 8464
Journal article Open

Use of Caffeine and Human Pharmaceutical Compounds to Identify Sewage Contamination

Description

Fecal coliform bacteria are widely used as indicators of sewage contamination in surface water. However, there are some disadvantages in these microbial techniques including time consuming (18-48h) and inability in discriminating between human and animal fecal material sources. Therefore, it is necessary to seek a more specific indicator of human sanitary waste. In this study, the feasibility was investigated to apply caffeine and human pharmaceutical compounds to identify the human-source contamination. The correlation between caffeine and fecal coliform was also explored. Surface water samples were collected from upstream, middle-stream and downstream points respectively, along Rochor Canal, as well as 8 locations of Marina Bay. Results indicate that caffeine is a suitable chemical tracer in Singapore because of its easy detection (in the range of 0.30-2.0 ng/mL), compared with other chemicals monitored. Relative low concentrations of human pharmaceutical compounds (< 0.07 ng/mL) in Rochor Canal and Marina Bay water samples make them hard to be detected and difficult to be chemical tracer. However, their existence can help to validate sewage contamination. In addition, it was discovered the high correlation exists between caffeine concentration and fecal coliform density in the Rochor Canal water samples, demonstrating that caffeine is highly related to the human-source contamination.

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References

  • I.J. Buerge, T. Poiger, M.D. M├╝ller, and H-R. Buser, "Caffeine, an anthropogenic marker for wastewater contamination of surface waters," Environ. Sci. Technol., vol. 37, pp. 691-700, 2003.
  • C.L. Meays, K. Broersma, R. Nordin, A. Mazumder, "Source tracking fecal bacteria in water: a critical review of current methods," Journal of Environmental Management, vol. 73, pp. 71-79, 2004.
  • K.G. Field, M. Samadpour, "Fecal source tracking, the indicator paradigm, and managing water quality," Water Research, vol. 41, pp. 3517-3538, 2007.
  • R.L. Seiler, S.D. Zaugg, J.M. Thomas, D.L. Howcroft, "Caffeine and pharmaceuticals as indicators of waste water contamination in wells," Ground Water, vol. 37, pp. 405-410, 1999.
  • K.A. Peeler, S.P. Opsahl, J.P. ChantonI, "Tracking anthropogenic inputs using caffeine, indicator bacteria, and nutrients in rural freshwater and urban marine systems," Environ. Sci. Technol., vol. 40, pp. 7616-7622, 2006.
  • M.J. Benotti, B.J. Brownawell, "Distributions of pharmaceuticals in an urban estuary during both dry- and wet-weather conditions," Environ. Sci. Technol., vol. 41, pp. 5795-5802, 2007.
  • C. Maldonado, J. Dachs, J.M. Bayona, "Trialkylamines and coprostanol as tracers of urban pollution in waters from enclosed seas: the Mediterranean and black sea," Environ. Sci. Technol., vol. 33, pp. 3290-3296, 1999.
  • K.O. Isobe, M. Tarao, M.P. Zakaria, N.H. Chiem, L.Y. Minh, H. Takada, "Quantitative application of fecal sterols using gas-chromatography-mass spectrometry to investigate fecal pollution in tropical waters: western Malaysia and Mekong Delta, Vietnam," Environ. Sci. Technol., vol. 36, pp. 4497-4507, 2002.
  • I.J. Buerge, T. Poiger, M.D. M├╝ller, H-R Buser, "Combined sewer overflows to surface waters detected by the anthropogenic markers," Environ. Sci. Technol., vol. 40, pp. 4096-4102, 2006. [10] S.T. Glassmeyer, E.T. Furlong, D.W. Kolpin, J.D. Cahill, S.D. Zaugg, S.L. Werner, M.T. Meyer, D.D. Kryak, "Transport of chemical and microbial compounds from known wastewater discharges: potential for use as indicators of human fecal contamination," Environ. Sci. Technol., vol. 39, pp. 5157-5169, 2005. [11] P.D. Anderson, V.J. D-aco, P. Shanahan, S.C. Chapra, M.E. Buzby, V.L. Cunningham, B.M. Duplessie, E.P. Hayes, F.J. Mastrocco, N.J. Parke, J.C. Rader, J.H. Samuelian, B.W. Schwab, "Screening analysis of human pharmaceutical compounds in U.S. Surface," Environ. Sci. Technol., vol. 38, pp. 838-849, 2004. [12] C. Pratt, J. Warnken, R. Leeming, J.M. Arthur, D.I. Grice, "Detection of intermittent sewage pollution in a subtropical oligotrophic, semi-enclosed embayment system using sterol signatures in sediments," Environ. Sci. Technol., vol. 41, pp. 792-802, 2007.