DOI: 10.1016/j.watres.2018.10.034
Scopus记录号: 2-s2.0-85055106923
论文题名: Enhanced real-time cyanobacterial fluorescence monitoring through chlorophyll-a interference compensation corrections
作者: Choo F. ; Zamyadi A. ; Stuetz R.M. ; Newcombe G. ; Newton K. ; Henderson R.K.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 148 起始页码: 86
结束页码: 96
语种: 英语
英文关键词: Algae and cyanobacteria
; In situ probe
; Phycocyanin
; Source management
Scopus关键词: Chlorophyll
; Fluorometers
; Measurement errors
; Potable water
; Cyanobacterial blooms
; Cyanobacterial species
; Interference compensation
; Interference sources
; Optimal correction
; Phycocyanin
; Recreational water
; Source management
; Algae
; chlorophyll a
; phycocyanin
; chlorophyll a
; concentration (composition)
; correction
; cyanobacterium
; drinking water
; fluorescence
; green alga
; instrumentation
; measurement method
; pigment
; probe
; Ankistrodesmus
; Article
; Chlorella vulgaris
; cyanophage
; Cylindrospermopsis raciborskii
; Dolichospermum circinale
; fluorometry
; measurement error
; Microcystis aeruginosa
; nonhuman
; statistical significance
; turbidity
; waste water treatment plant
; algae
; Chlorophyta
; Cyanobacteria
英文摘要: In situ fluorometers can be used as a real-time cyanobacteria detection tool to maintain safe drinking and recreational water standards. However, previous studies into fluorometers have established issues arising mainly from measurement inaccuracies due to green algae interference. Therefore, this study focusses on developing correction factors from a systematic study on the impact of green algae as an interference source. This study brings a novel technique where the chlorophyll-a (Chl-a) and phycocyanin measurements are used to correct the fluorometer output for interference bias; four fluorometers were tested against three key cyanobacterial species and the relationship between phycocyanin output, green algae and cyanobacteria concentrations were investigated. Good correlation (R 2 > 0.9, p-value < 0.05) was found between the fluorometer phycocyanin output and increasing green algae concentration. The optimal correction method was selected for each of the fluorometer and cyanobacteria species pairs by validating against data from the investigation of green algae as an interference source. The correction factors determined in this study reduced the measurement error for almost all the fluorometers and species tested by 21%–99% depending on the species and fluorometer, compared to previous published correction factors in which the measurement error was reduced by approximately 11%–81%. Field validation of the correction factors showed reduction in fluorometer measurement error at sites in which cyanobacterial blooms were dominated by a single species. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122224
Appears in Collections: 气候变化事实与影响
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作者单位: BioMASS Lab, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia; Département des génies civil, géologique et des mines, École Polytechnique de Montréal, Montréal, Québec H3T 1J4, Canada; UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia; Australian Water Quality Centre, SA Water Corporation, Adelaide, South Australia 5000, Australia
Recommended Citation:
Choo F.,Zamyadi A.,Stuetz R.M.,et al. Enhanced real-time cyanobacterial fluorescence monitoring through chlorophyll-a interference compensation corrections[J]. Water Research,2019-01-01,148