Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Long-term seasonal and temporal changes of hydrogen peroxide from cyanobacterial blooms in fresh waters

Authors
Yoon, HyojikKim, Hyun-ChulKim, Sungpyo
Issue Date
15-11월-2021
Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Keywords
Algal bloom; Antibiotic; Cyanobacteria; Heavy metal; Hydrogen peroxide
Citation
JOURNAL OF ENVIRONMENTAL MANAGEMENT, v.298
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume
298
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/135730
DOI
10.1016/j.jenvman.2021.113515
ISSN
0301-4797
Abstract
In water, hydrogen peroxide (H2O2) is produced through abiotic and biotic reactions with organic matter, including algal cells. The production of H2O2 is influenced by harmful algal cell communities and toxicity. However, only a few studies have been conducted on H2O2 concentrations in natural water. Particularly, the seasonal and temporal patterns of H2O2 concentration suggest that H2O2 generation from aquatic microorganisms could be identified to compare of photochemical production from dissolved organic matter. Study area is a source of raw water and is a large artificial lake located near a metropolitan city. Due to various environmental conditions, harmful algal blooms frequently occur in summer. The purpose of this study was to trace the H2O2 concentration and water quality parameters of study area where algal bloom occurs and what factors directly affect the H2O2 concentration. Experiments were performed on the influencing factors via water samples from study area and lab-scale culture tank. The lake produces an average of 553 nM H2O2, which increases by more than three times (1460 nM) in summer compared the winter. The lake (18.6-23.8 nMh(-1)) produced more H2O2 than streams (7.4-9.0 nMh(-1)) during daylight hours. All water sites presented the lowest production rates in dark conditions (1.1-1.5 nMh(-1)). Daytime environment increased the generation rate more than the nighttime. The trend of H2O2 produced by algal cells was similar to that of the growth of algal cells. The exposure to external substances (heavy metals and antibiotics) increased the incidence by approximately five times; antibiotics were more influential than heavy metals.
Files in This Item
There are no files associated with this item.
Appears in
Collections
Graduate School > Department of Environmental Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kim, Sung pyo photo

Kim, Sung pyo
환경공학과
Read more

Altmetrics

Total Views & Downloads

BROWSE