Distributional Characteristics of Cryptosporidium and Giardia in Raw Water of Large Water Treatment Facility in Korea

국내 5만톤/일 이상 대규모 정수장 원수에서 크립토스포리디움 및 지아디아 분포특성

  • Park, Sangjung (National Institute of Environmental Research) ;
  • Kim, Jongmin (National Institute of Environmental Research) ;
  • Kim, Taeseung (National Institute of Environmental Research) ;
  • Chung, Dongil (National Institute of Environmental Research) ;
  • Lee, Mokyoung (Seoul Metropolitan waterworks Research Institute) ;
  • Nam, Sehee (Korea water Resources Corporation) ;
  • Yoon, Jongho (Daegu Metropolitan waterworks Research Institute) ;
  • Jung, Jongmoon (Busan Metropolitan waterworks Research Institute) ;
  • Cho, Eunjoo (Seoul Metropolitan waterworks Research Institute) ;
  • Jeon, Hyensook (Daegu Metropolitan waterworks Research Institute) ;
  • Jang, Eunsook (Daegu Metropolitan waterworks Research Institute) ;
  • Chung, Mieun (Busan Metropolitan waterworks Research Institute)
  • Received : 2009.09.28
  • Accepted : 2009.12.30
  • Published : 2010.03.30

Abstract

In order to evaluate the distribution level of Cryptosporidium and Giardia in drinking water resources, distribution of Cryptosporidium and Giardia was studied in intake water of main water treatment facility with treatment capacity over 50,000 ton/day in Korea. 10 L samples from each study sites were collected quarterly for 2 years between Oct. '04 and Dec. '07. Cryptosporidium and Giardia were filtered and concentrated by capsule filter and centrifugation, and analyzed by immunomagnetic separation process and fluorescent assay. Cryptosporidium oocysts and Giardia cysts were detected in 7.0% and 9.3%, respectively, of a total 776 samples from 97 study sites. And mean detection number of Cryptosporidium oocysts and Giardia cysts in total 776 samples was 0.11/10 L, 0.16/10 L, detection range of Cryptosporidium oocysts and Giardia cysts was 0~7/10 L, 0~4/10 L, respectively. In seasonal distribution, Cryptosporidium was more frequent in spring as 9.2% than other season, Giardia was more frequent in winter as 14.6% than other season, but there was not shown significant seasonal characteristics. In correlation analysis with total 776 data, Cryptosporidium had significant correlation to total coliforms at the 0.05 level, but correlation value was too low as 0.07 (r=0.07). In case of Giardia, what had significant correlation at the 0.05 level was total coliforms and fecal coliforms, but correlation value was too low as 0.26, 0.27 respectively.

Keywords

References

  1. 김혜선, 윤제용, 염철민(2000). 국내 상수원수 및 하수에서 Cryptosporidiumss과 Giardia 포낭 검출. 수질 보전 한국물환경학회지, 16(5), pp. 585-594.
  2. 박상정, 정향희(2008). Nested PCR-RFLP 및 DNA Sequen-cing을 이용한 환경시료에서의 크립토스포리디움 동정. 수질보전 한국물환경학회지, 24(6), pp. 817-822.
  3. 이목영, 김도연, 조은주, 이의광, 오세종, 이채근, 하영칠(2000). 1623방법에 의한 서울시 상수도계통의 지아디아 및 크립토스포리디움 검출. 수질보전 한국물환경학회지, 16(5), pp. 595-608.
  4. 채종일, 신손문, 윤종구, 유재란, 이순형(1990). 면역억제에 의한 마우스의 Cryptosporidium 발현실험. 기생충학잡지, 28(1), pp.31-37.
  5. 환경부(2002). 정수처리에 관한 기준.
  6. Chai, J. Y., Lee, S. H., and Guk, S. M. (1996). An epidemiological survey of Cryptosporidium parvum infection in randomly selected inhabitants of Seoul and Chollanam-do. Korean J Parasitol., 34, pp. 113-119. https://doi.org/10.3347/kjp.1996.34.2.113
  7. Jose Antonio, C. H., Ignacio, G. P., Andre, A., Marta, G. W., Jose, MCDC., and Mercedes, M. (2009). Detection of Cryptosporidium spp. and Giardia duodenalis in surface water : A Health risk for humans and animals. Water Research, 43, pp. 4133-4142. https://doi.org/10.1016/j.watres.2009.06.020
  8. Kang, Y. K., Lee, H. K., Kim, S. W., and Choi, J. G. (1995). Cryptosporidiosis in a leukemia child with severe diarrhea. Seoul J. Med, 36(1), pp. 29-34.
  9. Mackenzie, W, R., Hoxie, N. J., Proctor, M. E., Gradus, M. S., Blair, K. A., Peterson, D. E., Kazmierczak, J. J., Addiss, D. G., Fox, K. R., and Rose, J. B. (1994). A massive outbreak in Milwaukee of Cryptosporidium infection transmitted through the public water supply. N Engl J Med., 331(3), pp. 161-167. https://doi.org/10.1056/NEJM199407213310304
  10. Seo, M., Huh, S., Chai, J. Y., and Yu, J. R. (2001). An epidemiological survey on Cryptosporidium parvum infection of inhabitants in Chorwon-gun, Kangwon-do. Korean J Parasitol. Jun., 39(2), pp, 201-203. https://doi.org/10.3347/kjp.2001.39.2.201
  11. USEPA (2005). Occurrence and exposure assessment for the Final LT2ES WTR. EPA 815-R-06-002.
  12. Yu, J. R., Lee, J. K., Seo, M., Kim, S. l., Sohn, W. M., Huh, S., Choi, H. Y., and Kim, T. S. (2004). Prevalence of cryptosporidiosis among the villagers and domestic animals in several rural areas of Korea. Korean J Parasito, 42, pp. 1-6. https://doi.org/10.3347/kjp.2004.42.1.1