Detection of manufactured nanomaterials (NM) still features enormous challenges for environmental exposure assessment and management of NM. The expert opinion presents a comprehensive survey on existing experimental approaches to detect NM in the environment and analyses to what extent these approaches could be utilized and advanced to be used routinely for data collection to assess and manage environmental exposure. Recommendations for actions on a short and long term basis are deduced for the establishment of standardized protocols for sampling, sample preparation and analysis which can now be used to prioritize further action in improving measurement techniques of NM in the environment. Veröffentlicht in Texte | 133/2019.
The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere 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. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. This product displays the Cloud-Top Height (CTH) around the globe. Clouds play a crucial role in the Earth's climate system and have significant effects on trace gas retrievals. The cloud-top height is retrieved from the O2-A band using the ROCINN algorithm. Daily observations are binned onto a regular latitude-longitude grid. This product is created in the scope of the project INPULS. It develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.
The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere 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. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. This product displays the Formaldehyde (HCHO) concentration around the globe. The major HCHO sources are vegetation, fires, traffic and industrial sources. Daily observations are binned onto a regular latitude-longitude grid. This product is created in the scope of the project INPULS. It develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.
Das Non-Target-Screening (NTS) bietet für die chemische Gewässerüberwachung viele neue Möglichkeiten, besonders bei der Priorisierung von umwelt- und gesundheitsrelevanten Chemikalien oder der Identifizierung bisher nicht bekannter Umweltkontaminanten. Dabei verhindern zwei Defizite die Aufnahme des NTS in bestehende Messprogramme: zum einen fehlen die nötigen Erfahrungen mit der Messtechnik und die dafür benötigte Geräteausstattung in Umweltlaboren, zum anderen benötigt es eine bessere Vergleichbarkeit der Methoden und produzierten Messdaten, um den inter-institutionellen Austausch von Ergebnissen zu fördern. Basierend auf den bisherigen Arbeiten der Bundesanstalt für Gewässerkunde wurde in diesem Projekt der Einsatz der NTS-Methodik für die Messung von Oberflächenwasserproben untersucht. Der Bericht thematisiert zunächst verschiedene Aspekte der Anwendung des NTS wie die Probenahme, Messung, Qualitätssicherung und Auswertung. Anschließend ist eine Erprobung des NTS an zwei Messstellen der Bundeswasserstraßen dargestellt. Quelle: Forschungsbericht
The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere 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. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. This product displays the sulphur dioxide (SO2) concentration around the globe. Sulphur dioxide enters the atmosphere through volcanic eruptions and human-related activities. Daily observations are binned onto a regular latitude-longitude grid. This product is created in the scope of the project INPULS. The DLR INPULS project develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.
Für ein kommendes Update des Handbuchs für Emissionsfaktoren des Straßenverkehrs (HBEFA) wurden durch das KBA, DUH und TU Dresden Messungen an Pkw Euro 5 und 6 mit verpflichtenden und freiwilligen Softwareupdates durchgeführt. Die Messungen umfassen dabei Tests im realen Verkehr (RDE Messungen) mit portabler Messtechnik (PEMS-Geräte) bei unterschiedlichen Temperaturen sowie Messungen auf dem Rollenprüfstand im Fahrzyklus WLTC bei den Temperaturen 5˚C, 10˚C und 15˚C. In dieser Studie wurden aus diesen Messdaten Emissionsfaktoren für betriebswarmen Zustand nach der Methode des HBEFA und damit auch die mit den Softwareupdates verbundenen NOx-Minderungen bestimmt. Dafür wurden aus den RDE-Messungen Emissions-Motorkennfelder für die Fahrzeuge vor-und nach Softwareupdate für das Emissionsmodell PHEM generiert mit dem im Anschluss die Emissionsfaktoren simuliert wurden. Der Datensatz ist damit kompatibel mit den sonstigen Emissionsfaktoren im HBEFA und steht für kommende Updates zur Verfügung. Aus den WLTC-Messungen wurden auch die NOx-Temperaturkorrekturfunktionen und Kaltstartzusatzemissionen erstellt. Diese erzeugten Daten sollen im nächsten HBEFA-Update zusätzlich zu den EA 189 Software-Updates der VW-Konzernfahrzeuge einfließen. Quelle: Forschungsbericht
The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere 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. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. This product displays the Nitrogen Dioxide (NO2) near surface concentration for Germany and neighboring countries as derived from the POLYPHEMUS/DLR air quality model. Surface NO2 is mainly generated by anthropogenic sources, e.g. transport and industry. POLYPHEMUS/DLR is a state-of-the-art air quality model taking into consideration - meteorological conditions, - photochemistry, - anthropogenic and natural (biogenic) emissions, - TROPOMI NO2 observations for data assimilation. This Level 4 air quality product (surface NO2 at 15:00 UTC) is based on innovative algorithms, processors, data assimilation schemes and operational processing and dissemination chain developed in the framework of the INPULS project. The DLR project INPULS develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.
| Origin | Count |
|---|---|
| Bund | 5652 |
| Land | 87 |
| Wissenschaft | 4 |
| Type | Count |
|---|---|
| Ereignis | 1 |
| Förderprogramm | 5544 |
| Text | 117 |
| Umweltprüfung | 1 |
| unbekannt | 71 |
| License | Count |
|---|---|
| geschlossen | 172 |
| offen | 5556 |
| unbekannt | 6 |
| Language | Count |
|---|---|
| Deutsch | 5712 |
| Englisch | 538 |
| unbekannt | 5 |
| Resource type | Count |
|---|---|
| Archiv | 1 |
| Bild | 11 |
| Datei | 1 |
| Dokument | 32 |
| Keine | 3589 |
| Unbekannt | 4 |
| Webdienst | 4 |
| Webseite | 2117 |
| Topic | Count |
|---|---|
| Boden | 3490 |
| Lebewesen & Lebensräume | 3377 |
| Luft | 3256 |
| Mensch & Umwelt | 5726 |
| Wasser | 2918 |
| Weitere | 5734 |