Non-biting midges (Diptera; chironomidae) in waste stabilization ponds: An intensifying nuisance in Israel

M. Broza, M. Halpern, M. Inbar

Research output: Contribution to journalConference articlepeer-review


Dan Region Waste Stabilization Ponds (DRWSP) were first operated in 1970 in a rural area south of Tel-Aviv. In subsequent years, with the massive urbanization of central Israel, residence has expanded within 2 km of the ponds. The ponds were found to be a suitable habitat for non-biting midges Chironomus spp. (Diptera; Chironomidae) larvae, giving birth to billions of adult chironomids per day. Since 1998, evening breezes have been carrying large adult swarms into the adjacent town of Rishon Le-Zion where they become a severe nuisance mainly during the spring and midsummer (April-July). Midges may penetrate human mouths, eyes, and ears, restricting evening activity outdoors. In addition, dead midges create aesthetic problems, demanding frequent cleaning. The combination of intensive urbanization near DRWSP and the improved water quality, that optimized the midges developmental conditions in the ponds, may be blamed for the current situation.

Original languageEnglish
Pages (from-to)71-74
Number of pages4
JournalWater Science and Technology
Issue number1-2
StatePublished - 2000
EventProceedings of the 7th International Conference of the Israel Society for Ecology and Environmental Quality Sciences - Jerusalem, Isr
Duration: 13 Jun 199918 Jun 1999


  • Chironomidae
  • Nuisance midges
  • Stabilization ponds
  • Water quality

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology


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