Investigating Taste and Odour Characteristics in a Drinking Water Source: A Comprehensive 3-Year Monitoring Study

Zengin Z., Köker L., Özbayram E. G., Albay M., Akçaalan Albay R.

Environmental Management, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1007/s00267-024-02071-4
  • Dergi Adı: Environmental Management
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, CINAHL, Communication Abstracts, Compendex, EMBASE, Environment Index, Geobase, Greenfile, Index Islamicus, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: 2-methylisoborneol, Actinobacteria, Cyanobacteria, Drinking water, Geosmin, Metabarcoding
  • İstanbul Üniversitesi Adresli: Evet

Özet

The monitoring of drinking water quality is a vital public health concern together with taste and odour (T&O) episodes, an emerging global problem causing a loss of public trust to the quality of water. Our objective was to monitor water quality of an important drinking water source and also the production dynamics of geosmin and 2-methylisoborneol (2-MIB) which cause taste and odour problems in the lake. The trophic status of the lake was classified as mesotrophic. 2-MIB was positively correlated temperature while geosmin was positively correlated with depth. Other physicochemical parameters related with water quality did not show significant correlation with geosmin and 2-MIB. The highest 2-MIB and geosmin concentrations were detected during the thermal stratification period in 2016 and 2018 by gas chromatography-mass spectrometry (GC-MS). Cyanobacteria and Actinobacteria were detected in geosmin & 2-MIB detected samples as potential taste and odour producers by PCR. Selected samples were analysed with metabarcoding and Planktothrix, Pseudanabaena, Cyanobium, Streptomyces, and Nocardioides were detected as potential geosmin & 2-MIB producers. Micrococcus, Rhodococcus, Acinetobacter, Comamonas, Novosphingobium, Sphingopyxis, Pseudomonas, Sphingomonas, Stenotrophomonas and Flavobacterium were identified as potential geosmin & 2-MIB degraders. The results highlighted the significant role of the autochthonous bacterial community, temperature and thermal stratification in the taste and odour dynamics of a drinking water source.