Ozone vertical column density in Dobson Units as derived from Sentinel-5P/TROPOMI observations. The stratospheric ozone layer protects the biosphere from harmful solar ultraviolet radiation. Ozone in troposphere can pose risks to the health of humans, animals, and vegetation. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) solar radiation reflected by and radiated from the earth and its atmosphere. The four spectrometers of TROPOMI cover the ultraviolet (UV), visible (VIS), Near Infra-Red (NIR) and Short Wavelength Infra-Red (SWIR) domains of the electromagnetic spectrum, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Daily observations are binned onto a regular latitude-longitude grid. Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.
Dieser Web Feature Service (WFS), Risikogebiete Hochwasserrisikomanagement, stellt flächenhaft die Risikogebiete in Gefahren- und Risikokarten zum Downloaden bereit. Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.
Over the past 30 years, the significant increasing exploitation of Rare Earth Elements (REEs) for their use in new technologies (e.g. low-carbon energy, multimedia, medicine) has led to their release into the environment. The occurrence of these emerging contaminants in the environment leads to major health and environmental issues. In the last decade, a growing number of studies have observed the presence of anthropogenic REEs in freshwater and marine aquatic organisms. However, limited information is currently available regarding the natural levels of REE concentrations in aquatic organisms. A global understanding of these natural levels is therefore essential to: i) understand the natural biogeochemical cycles of REEs; ii) gain better insights into the risks of exposure associated with anthropogenic REEs; and iii) determine research perspectives by evaluating current knowledge gaps. This dataset compiles concentrations for the 14 stable REEs, from lanthanum (La) to lutetium (Lu), and sum of REE concentrations (∑REE). These data were compiled from 102 articles published over the last 50 years, between April 1973 and January 2023. These articles provided at least one concentration value for one REE in one aquatic organism, regardless of the analyzed tissue (e.g. whole organism, leaf, liver, shell). A total of 15,710 concentration data were compiled for aquatic organisms. The REE concentrations were compiled for in situ aquatic organisms (expressed in µg.kg-1). The available concentration data for water (n=2105; in µg.l-1) and sediment samples (n=1125; in µg.kg-1) from these studies were also compiled. These field data span across a global scale, encompassing both freshwater and marine ecosystems. The REE concentrations were associated with various biological parameters (e.g. Phylum, Species, Habitat, Tissues) and spatial parameters (e.g. Ecosystem, Area). For each of these parameters, the most precise information was obtained from the published articles providing these data. Additionally, the data were classified based on the presence or absence of environmental REE contamination at the sampling site. Further complementary information is available in the dataset (ReadMe tab). The reference for each of the cited articles is also provided in the dataset (References tab).
Urease and nitrification inhibitors are used in agriculture to reduce ammonia and nitrous oxide emissions and the leaching of nitrate. However, the risks of inhibitors for human health and the environment have not yet been sufficiently investigated. Also, the specific effectiveness of different urease and nitrification inhibitors has not yet been sufficiently clarified. These uncertainties have so far only been partially considered in legal regulations. This paper summarizes the current state of knowledge on the effects of the substances and examines the extent to which the legal regulations take the risks into account. Finally, recommendations are made as to how legal regulations should be changed so that the inhibitors contribute to achieving environmental and climate goals. Veröffentlicht in Texte | 77/2025.
Täglich sammeln wir Staub - wenn wir uns in einem Raum aufhalten, wenn wir durch eine Wiese oder über eine Straße gehen oder auch in einem Buch lesen - und täglich versuchen wir, ihn wieder loszuwerden. Unser Drang nach Reinheit hat eine ganze Industrie entstehen lassen, die von Staubsaugern bis zu High-Tech-Filtern alle Arten von kleinen und größeren Hilfsmitteln anbietet. Für die Wissenschaft ist Staub kein Dreck. Was für den Alltagsmenschen ein Symbol der Zerstörung ist, birgt für den Forscher viele wichtige Informationen. Denn aus einer Analyse des Staubes lässt sich vieles über unsere gegenwärtige und sogar über vergangene Umwelten lernen. Zum anderen erobert die Wissenschaft mit Mikro- und Nanotechnologien die Welt des Winzigen. Denn das sehr Kleine eröffnet besondere technische Chancen. Auch diese aktuellen Entwicklungen und die damit verbundenen Chancen und Risiken soll die Ausstellung aufzeigen. Die Ausstellung wurde von November 2004 bis Oktober 2005 im Wissenschaftszentrum Umwelt der Universität Augsburg gezeigt werden. Sie umfasst 30-40 Exponate, darunter mehrere Hands-on-Exponate. Leihgeber für spezielle Objekte sind das Bundeskriminalamt, das Landesamt für Umweltschutz in Bayern, das Umweltbundesamt, der Deutsche Wetterdienst und weitere Institutionen. Ein ausstellungsbegleitendes Buch wird beim Oekom Verlag in München erscheinen. Im Anschluss an die Augsburger Station ging die Ausstellung auf Wanderschaft und wurde inzwischen an sechs weiteren Stationen gezeigt. Die Zahl der Besucher liegt bereits weit über 100.000.
Entwicklung eines Frueherkennungssystems, anhand dessen das Risikopotential bei Vermeidung, Verminderung, Verwertung und Beseitigung von Abfaellen ermittelt werden kann. Identifizierung von Schwelgasen, getrennte Erfassung von halogenierten Kohlenwasserstoffen. Multisensorkopf zur Erfassung von krebserregenden Loesungsmitteln (Benzol etc.) in geringen Konzentrationen in Gemischen mit Ketonen, Alkoholen, Aldehyden etc. (Schnelltest, Verwendung neuronaler Netze).
Reaktionen verschiedener Zellsysteme auf Schwerelosigkeitssimulation und erhoehte Beschleunigung werden im Zusammenhang mit der Frage zellphysiologischer Risiken fuer den Raumfahrer untersucht; gewebskundliche Untersuchung des Gleichgewichtsorgans von Froschembryonen und -larven zur Bewertung der Gefahr einer degenerativen Entartung dieses Organs beim Raumfahrer.
Auswahl von Standorten fuer Kernenergieanlagen und Einzelstandortbewertung unter besonderer Beruecksichtigung des nuklearspezifischen Risikos. Entwicklung eines bundeseinheitlichen EDV-unterstuetzten Verfahrens zur Beschleunigung des Genehmigungsverfahrens. Erfassung und nutzwertanalytische Verarbeitung von Standortdaten.
Egypt passed a revolution and changed its political system, but many problems are still lacking a solution. Especially in the field of water the North African country has to face many challenges. Most urgent are strategies to manage the limited water resources. About 80% of the available water resources are consumed for agriculture and the rest are for domestic and industrial activities. The management of these resources is inefficient and a huge amount of fresh water is discarded. The shortage of water supply will definitely influence the economic and cultural development of Egypt. In 2010, Egypt was ranked number 8 out of 165 nations reviewed in the so-called Water Security Risk Index published by Maplecroft. The ranking of each country in the index depends mainly on four key factors, i.e. access to improved drinking water and sanitation, the availability of renewable water and the reliance on external supplies, the relationship between available water and supply demands, and the water dependency of each countrys economy. Based on this study, the situation of water in Egypt was identified as extremely risky. A number of programs and developed strategies aiming to efficiently manage the usage of water resources have been carried out in the last few years by the Egyptian Government. But all these activities, however, require the availability of trained and well-educated individuals in water technology fields. Unfortunately, the number of water science graduates are decreasing and also there are few teaching and training courses for water science offered in Egypt. However, there is still a demand for several well-structured and international programs to fill the gap and provide the Egyptian fresh graduates with the adequate and up-to-date theoretical and practical knowledge available for water technology. IWaTec is designed to fill parts of this gap.
The aim of the MICROSOIL project was to identify meaningful endpoints for assessing the effects of plant protection products, veterinary pharmaceuticals and biocides on microorganisms in agricultural soils. The current risk assessment for plant protection products (PPPs) considers the effects of PPPs on nitrogen turnover by microorganisms in test soils according to the OECD 216 testguideline. However, this laboratory test does not cover all risks to microorganisms caused by PPPs. Within this project, five alternative methods to assess the effects of chemicals on the soil microbial community were identified, based on a literature review and a scoring system . To compare the sensitivity of these methods to chemicals, laboratory tests were carried out with three soils and six test substances, each. Based on the MICROSOIL results, it is recommended to add an additional test on bacterial function (ISO 20130, enzymatic activity) and a structural test on the effects on mycorrhizal fungi (ISO 10832) to the first tier risk assessment of chemicals. A fingerprinting method to assess the impact on community structure is also recommended but needs to be further elaborated. The results of this project also show that the current risk assessment for veterinary pharmaceuticals may not cover the development of antibiotic resistance in environmentally relevant soil bacteria. This project also investigated the degradation performance of microorganisms after multiple applications of chemicals. Multiple applications of the same substance as well as the presence of another substance in the soil had both positive and negative effects on the degradation rate of the test substances. The results presented here underline the need to update the risk assessment framework for soil organisms, exposed to chemicals and provide concrete suggestions for a new risk assessment scheme. Veröffentlicht in Texte | 93/2025.
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