scholarly journals Risk assessment of toxic Cyanobacteria in Polish water bodies

2006 ◽  
Author(s):  
J. Mankiewicz-Boczek ◽  
K. Izyorczyk ◽  
T. Jurczak
Keyword(s):  
Risk Assessment ◽  
Water Bodies ◽  
Toxic Cyanobacteria

scholarly journals Potentially Toxic Planktic and Benthic Cyanobacteria in Slovenian Freshwater Bodies: Detection by Quantitative PCR

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 133
Author(s):  
Maša Zupančič ◽  
Polona Kogovšek ◽  
Tadeja Šter ◽  
Špela Remec Rekar ◽  
Leonardo Cerasino ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Threat Detection ◽  
Gene Copies ◽  
Toxic Cyanobacteria ◽  
Freshwater Bodies ◽  
Mcye Gene ◽  
One Year ◽  
Reliable Methods

Due to increased frequency of cyanobacterial blooms and emerging evidence of cyanotoxicity in biofilm, reliable methods for early cyanotoxin threat detection are of major importance for protection of human, animal and environmental health. To complement the current methods of risk assessment, this study aimed to evaluate selected qPCR assays for detection of potentially toxic cyanobacteria in environmental samples. In the course of one year, 25 plankton and 23 biofilm samples were collected from 15 water bodies in Slovenia. Three different analyses were performed and compared to each other; qPCR targeting mcyE, cyrJ and sxtA genes involved in cyanotoxin production, LC-MS/MS quantifying microcystin, cylindrospermopsin and saxitoxin concentration, and microscopic analyses identifying potentially toxic cyanobacterial taxa. qPCR analyses detected potentially toxic Microcystis in 10 lake plankton samples, and potentially toxic Planktothrix cells in 12 lake plankton and one lake biofilm sample. A positive correlation was observed between numbers of mcyE gene copies and microcystin concentrations. Potential cylindrospermopsin- and saxitoxin-producers were detected in three and seven lake biofilm samples, respectively. The study demonstrated a potential for cyanotoxin production that was left undetected by traditional methods in both plankton and biofilm samples. Thus, the qPCR method could be useful in regular monitoring of water bodies to improve risk assessment and enable timely measures.

Effect-directed monitoring tools as a toxicological fingerprint for ecological and human risk assessment of water bodies

2018 ◽  
Vol 295 ◽  
pp. S167
Author(s):  
V. De Gussem ◽  
L. Schuijt ◽  
P. van den Brink ◽  
J. van Dijk ◽  
M. Jonker ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Water Bodies ◽  
Human Risk Assessment ◽  
Human Risk ◽  
Monitoring Tools

Risk and monitoring based indicators of receiving water status: alternative or complementary elements in IWRM?

2013 ◽  
Vol 67 (1) ◽  
pp. 33-39 ◽  
Author(s):  
J. Völker ◽  
S. Richter ◽  
D. Borchardt ◽  
V. Mohaupt
Keyword(s):  
Risk Assessment ◽  
Multiple Stressors ◽  
Early Stage ◽  
Water Status ◽  
Ecological Status ◽  
Biological Indicator ◽  
Water Bodies ◽  
Ecological Indicator ◽  
Initial Characterization ◽  
Existing Data

The European Water Framework Directive (WFD) was enacted in the year 2000 with a stepwise approach. After legal implementation in the various member states large efforts were undertaken for the initial characterization of water bodies, risk assessment, to implement extensive monitoring schemes and to develop management plans at different aggregation levels by the year 2010. The initial characterization process and risk assessment had to be finalized by 2004 and delineated water bodies including a typological classification and identified the significant pressures and impacts in a screening procedure. In parallel, monitoring programmes and new biological indicator systems were developed in order to proof and refine the results of the risk assessment with an ecological indicator based assessment in a subsequent step which was finalized in 2009. Although the risk assessment for Germany was based on existing data that were originally collected for other purposes and came from a large variety of environmental or economical sectors, the results differ only slightly from the monitoring and indicator based information with respect to classifications of the ‘ecological status’ and ‘chemical status’. From this result we conclude that a risk assessment based on a careful application and intelligent combination of existing data sources with proven quality allows the recognition of trends and the identification of priorities for action of measures already at an early stage of a management process. However, monitoring schemes and advanced sets of ecological indicators are essential in later management steps both for narrowing uncertainties remaining from the risk assessment and to allow for effect controls of implemented measures. Moreover, these monitoring indicators should differentiate the effects of multiple stressors more factor specific and with respect to ecosystem states and functions. In conclusion, we see risk and indicator based assessments as complementary elements in Integrated Water Resources Management (IWRM), which have to be linked in systematic and phased procedures.

scholarly journals Distribution, contents and health risk assessment of heavy metal(loid)s in fish from different water bodies in Northeast China

RSC Advances ◽  
2019 ◽  
Vol 9 (57) ◽  
pp. 33130-33139 ◽  
Author(s):  
XiaoLi Huang ◽  
DongLi Qin ◽  
Lei Gao ◽  
Qirui Hao ◽  
Zhongxiang Chen ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Heavy Metal ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Water Samples ◽  
Northeast China ◽  
Water Bodies ◽  
Potential Risks

This study aimed at investigating the accumulation and potential risks of eight metal(loid)s in fish from natural and culturing water samples in Northeast China.

scholarly journals Potential discharge, attenuation and exposure risk of SARS-CoV-2 in natural water bodies receiving treated wastewater

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Manish Kumar ◽  
Md. Alamin ◽  
Keisuke Kuroda ◽  
Kiran Dhangar ◽  
Akihiko Hata ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Potential Risk ◽  
Natural Water ◽  
Water Bodies ◽  
Treated Wastewater ◽  
Quantitative Microbial Risk Assessment ◽  
Microbial Risk Assessment ◽  
Microbial Risk ◽  
The Impact ◽  
Natural Water Bodies

AbstractRecently reported detection of SARS-CoV-2 in wastewater around the world has led to emerging concerns on potential risk in water bodies receiving treated wastewater effluent. This review aims to provide an up-to-date state of key knowledge on the impact of SARS-CoV-2 in natural water bodies receiving treated wastewater. In this review, SARS-CoV-2 concentrations in wastewater, expected removal in WWTPs, and possible dilution and decay in water bodies are reviewed based on past studies on SARS-CoV-2 and related enveloped viruses. We suggest a quantitative microbial risk assessment (QMRA) framework to estimate the potential risk of SARS-CoV-2 in natural water bodies through various water activities. Dose–response model of SARS-CoV and Poisson’s distribution is employed to estimate possible viral ingestion and the annual chance of infection through several water activities in natural water bodies. Finally, future perspectives and research needs have been addressed to overcome the limitations and uncertainty in the risk assessment of SARS-CoV-2 in natural water bodies.

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