scholarly journals Cyanobacterial Toxins and Cyanopeptide Transformation Kinetics by Singlet Oxygen and pH-Dependence in Sunlit Surface Waters

2021 ◽  
Author(s):  
Regiane Natumi ◽  
Christoph Dieziger ◽  
Elisabeth M.-L. Janssen
Keyword(s):  
Singlet Oxygen ◽  
Surface Waters ◽  
Ph Dependence ◽  
Transformation Kinetics ◽  
Cyanobacterial Toxins

Singlet oxygen in surface waters — Part I: Furfuryl alcohol as a trapping agent

Chemosphere ◽  
1984 ◽  
Vol 13 (5-6) ◽  
pp. 631-640 ◽  
Author(s):  
Werner R. Haag ◽  
Ju¨rg Hoigne´ ◽  
Ernst Gassman ◽  
Andre´M. Braun
Keyword(s):  
Singlet Oxygen ◽  
Surface Waters ◽  
Furfuryl Alcohol ◽  
Trapping Agent

Singlet Oxygen Analysis in Irradiated Surface Waters

1986 ◽  
Vol 27 (1-2) ◽  
pp. 137-149 ◽  
Author(s):  
André. M. Braun ◽  
Fritz H. Frimmel ◽  
Jürg Hoigné
Keyword(s):  
Singlet Oxygen ◽  
Surface Waters

Distribution, salinity and pH dependence of elements in surface waters of the catchment areas of the Salars of Coipasa and Uyuni, Bolivian Altiplano

2004 ◽  
Vol 84 (3) ◽  
pp. 141-166 ◽  
Author(s):  
David Banks ◽  
Howard Markland ◽  
Paul V. Smith ◽  
Carlos Mendez ◽  
Javier Rodriguez ◽  
...  
Keyword(s):  
Surface Waters ◽  
Ph Dependence ◽  
Catchment Areas ◽  
Bolivian Altiplano

The formation of singlet oxygen in surface waters

Chemosphere ◽  
1981 ◽  
Vol 10 (1) ◽  
pp. 59-62 ◽  
Author(s):  
C.J.M. Wolff ◽  
M.T.H. Halmans ◽  
H.B. van der Heijde
Keyword(s):  
Singlet Oxygen ◽  
Surface Waters

Assessing the photochemical transformation pathways of acetaminophen relevant to surface waters: Transformation kinetics, intermediates, and modelling

2014 ◽  
Vol 53 ◽  
pp. 235-248 ◽  
Author(s):  
Elisa De Laurentiis ◽  
Carsten Prasse ◽  
Thomas A. Ternes ◽  
Marco Minella ◽  
Valter Maurino ◽  
...  
Keyword(s):  
Surface Waters ◽  
Photochemical Transformation ◽  
Transformation Kinetics ◽  
Transformation Pathways

scholarly journals Microcystins (cyanobacterial toxins) in surface waters of rural Bangladesh: Pilot study

2005 ◽  
Vol 3 (4) ◽  
pp. 325-337 ◽  
Author(s):  
Martin Welker ◽  
Ingrid Chorus ◽  
Jutta Fastner ◽  
Saleha Khan ◽  
Md Mahfuzul Haque ◽  
...  
Keyword(s):  
Surface Water ◽  
Surface Waters ◽  
Health Hazard ◽  
Late Summer ◽  
Human Consumption ◽  
Cyanobacterial Toxins ◽  
Deep Wells ◽  
Tube Wells ◽  
Guideline Value ◽  
High Concentrations

In Bangladesh the exposure of millions of inhabitants to water from (shallow) tube wells contaminated with high geogenic loads of arsenic is a major concern. As an alternative to the costly drilling of deep wells, the return to the use of surface water as a source of drinking water is considered. In addition to the well-known hazards of water borne infectious diseases associated with the use of surface water, recently the potential public health implications of toxic cyanobacteria have been recognized. As a first step towards a risk assessment for cyanotoxins in Bangladesh surface waters, seston samples of 79 ponds were analysed in late summer 2002 for the presence of cyanobacteria and microcystins (MCYST), the most frequently detected cyanobacterial toxins worldwide. Microcystins could be detected in 39 ponds, mostly together with varying abundance of potentially microcystin-producing genera such as Microcystis, Planktothrix and Anabaena. Total microcystin concentrations ranged between <0.1 and >1,000 μg l−1, and more than half of the positive samples contained high concentrations of more than 10 μg l−1. The results clearly show that concentrations of microcystins well above the provisional WHO guideline value of 1 μg l−1 MCYST-LR can be frequently detected in Bangladesh ponds. Thus, an increasing use of surface water for human consumption introduces a risk of replacing one health hazard by another and therefore needs to be accompanied by cyanotoxin hazard assessments.

Sign in / Sign up

Export Citation Format

Share Document