We wish you both every success and hope that our collaboration will continue under new forms in the future.
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03.03.2026 10:05
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We wish you both every success and hope that our collaboration will continue under new forms in the future.
3/3
The #legacy you leave behind - in your work, your ideas, and the standards you set - will continue to shape what we do every day. It has been a privilege to witness your professional growth and to be part of your journey.
2/3
Last week, we celebrated not one, but two #farewells.
It’s not easy to say goodbye to special colleagues like Steffen Kittlaus and @boehler-s.bsky.social, but we feel very fortunate for the time we have shared. Thank you both for your dedication and impact you’ve brought to our team.
1/3
For waterresource managers, the key takeaway is that robust QA-QC strategies must be designed before data collection begins, with skilled staff to oversee both stations and data maintenance.
6/6
We also propose using concentration-discharge relationships as a validation tool for outlier detection, creating a bridge between statistical analysis and hydrological reality.
5/6
..
👉 No single outlier detection method is universally superior
👉 Transforming the timeseries and aggregating common outliers improves detection performance
👉 There is no 'plug and play' solution for outlier detection and
👉 Expert Judgment remains crucial for ensuring data quality
4/6
If this research saves even one researcher from manually cleaning a dataset, it have been worthwhile. Data quality shouldn't be a secret - it should be a shared capability!
Here's what we found:
👉 Tailored rule-based checks provided the greatest gains for reliable descriptive statistics
...
3/6
We wanted to understand the impact of outliers in high-frequency river water quality #monitoring data & find better ways to ensure #dataquality.
Using a 4-year dataset, we evaluated their quant. impact on summary stats & compared diff. detection methods, incl. uni- & multivariate approaches.
2/6
New publication by Nikolaus Weber et al: "The impact of data quality and #outlier detection in high-frequency #WaterQuality data on #WaterManagement and process understanding"
www.sciencedirect.com/science/arti...
#EnvironmentalMonitoring #DataScience #TimeSeriesAnalysis #DataValidation
1/6
...
👉 No single outlier detection method is universally superior
👉 Transforming the timeseries and aggregating common outliers improves detection performance
👉 There is no 'plug and play' solution for outlier detection and
👉 Expert Judgment remains crucial for ensuring data quality
4/6
If this research saves even one researcher from manually cleaning a dataset, it have been worthwhile. Data quality shouldn't be a secret - it should be a shared capability!
Here's what we found:
👉 Tailored rule-based checks provided the greatest gains for reliable descriptive statistics
...
3/6
We wanted to understand the impact of outliers in high-frequency river water quality #monitoring data & find better ways to ensure #dataquality.
Using a 4-year dataset, we evaluated their quant. impact on summary stats & compared diff. detection methods, incl. uni- & multivariate approaches.
2/6
...his decades-long involvement in numerous expert groups and initiatives, and for his significant contribution to the training courses for WWTP operators.
✨Fun fact✨Out of the four female speakers, three were Italian 🇮🇹
3/3
...once again the large Austrian wastewater-related community get together at TU Wien and engage into such an active and passionate exchange during the breaks.
🎉Surprise celebration 🎉 Norbert Kreuzinger was awarded the "ÖWAV Goldene Ehrennadel" in recognition of ...
2/3
The 280 participants of the #Februarseminar 2026, co-organised by #ÖWAV and our research unit, are now travelling back home.
We enjoyed the talks that tackled the complex topic of industrial wastewater from manifold complementary angles, but what made us perhaps even happier was to see...
1/3
... on how this is going to transform the European water sector in the future.
The DEX Summer School is more than a course. It is also a unique networking opportunity with several leading experts in the field.
2/2
If you are a Postgraduate or PhD student or a young professional interested in water, wastewater and sustainability, don't miss the #DEX #SummerSchool 2026 from 29 June to 3 July!
This edition will strongly focus on the new EU Urban #WastewaterTreatment Directive and ...
#KARL
1/2
Tomorrow we will shift the focus on planning and further developing wastewater treatment plants, as well as specific pollutants such as PFAS and phosphorus, and the environmental impact of industrial discharges.
We look forward to two intensive days of exchange!
3/3
Considering that about half of the population equivalent wastewater load in AT is generated by industry, this is no surprise.
Today we will focus on the legal framework, the challenges of indirect discharges and specific operational experiences from industrial parks and production facilities.
2/3
The #ÖWAV #Februarseminar 2026 has started.
This year, we focus on #industrial #wastewater.
280 participants and 21 sponsors confirm that the program designed under the lead of Joerg Krampe addresses a highly relevant and timely topic.
#seminar #event #tuwien #treatmentplant
1/3
We welcome original submissions that have not yet been accepted for publication in a journal. Authors whose abstracts are selected will be invited to give an oral or poster presentation at the conference.
#LWWTP #conference #WastewaterTreatment #WaterProfessionals #submission #open #abstract
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✍️Call for abstracts✍️
Abstract submissions are now open for the 15th #IWA Specialized Conference on Design, Operation and Economics of Large #Wastewater Treatment Plants, taking place on 12–16.9.2027 in Vienna: lwwtp2027.org
We look forward to receiving your submission by 30. Sept. 2026.
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👉 from a management and regulatory perspective, the importance of selecting the correct monitoring approach depends on the objective and on how far the river concentrations are from the regulatory thresholds
7/7
...while integrated composite sampling can significantly improve the accuracy of load calculations
👉 some contaminants were only detected by composite samples and were completely missed by grab samples
6/7
Our main conclusions:
👉 monthly grab sampling is only sufficiently reliable for contaminants being emitted fairly constantly and transported primarily in the dissolved phase. Even then, its reliability is mostly limited to assessing average concentrations and thus chronic exposure, ...
5/7
In this way, we could quantify potential deviations in the estimation of chronic & acute exposure & in annual river loads. We did so for 450 contaminants, covering a broad diversity of emission patterns & environmental fate: pot. toxic #elements, #pharmaceuticals, biocides, #pesticides & #PFAS.
4/7
To systematically assess the implications of this problem, we conducted a one-year survey in two rivers using three sampling techniques in parallel, and compared low-frequency #grab samples against time-proportional #composite and flow-proportional composite sampling.
3/7
Surface water quality compliance assessment & other river basin management tasks still rely heavily on monitoring programs based on monthly #sampling - despite increasing awareness of the #variability of #contaminant emissions & transport in #rivers & inherent limitations of such an approach.
2/7
🚀Paper alert "How reliable are estimates of trace contaminants in rivers based on monthly grab samples?"
Check all results in the #openaccess paper by Nikolaus Weber et al.
link.springer.com/article/10.1...
1/7
... Fabian Amman, as well as Norbert Kreuzinger & Joerg Krampe. Together, we advance aircraft wastewater surveillance as a powerful tool for early warning and cross-border public health monitoring.
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