A5080555559- Toxic Organic Pollutants Impact
- Mercury impact and mitigation studies
- Atmospheric chemistry and aerosols
- Per- and polyfluoroalkyl substances research
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Effects and risks of endocrine disrupting chemicals
- Heavy metals in environment
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine animal studies overview
- Coastal and Marine Management
- Atmospheric Ozone and Climate
- Marine and coastal ecosystems
- Microplastics and Plastic Pollution
- Analytical chemistry methods development
- Ocean Acidification Effects and Responses
- Sustainability and Climate Change Governance
- Environmental Toxicology and Ecotoxicology
- Arctic and Russian Policy Studies
- Water Treatment and Disinfection
- Water Quality Monitoring and Analysis
- Pesticide and Herbicide Environmental Studies
- Oil Spill Detection and Mitigation
- Marine Biology and Environmental Chemistry
- Environmental Chemistry and Analysis
Helmholtz-Zentrum Hereon
2016-2025
University of Tübingen
2023
Deutsches Institut für Normung
2023
Bayerisches Landesamt für Umwelt
2023
Karlsruhe University of Education
2023
Helmholtz Centre for Environmental Research
2023
Coastal Impact
1999-2021
Leuphana University of Lüneburg
2006-2014
Max Planck Society
1993-2013
Chinese Academy of Sciences
2013
Abstract. It was discovered in 1995 that, during the spring time, unexpectedly low concentrations of gaseous elemental mercury (GEM) occurred Arctic air. This surprising for a pollutant known to have long residence time atmosphere; however conditions appeared exist that promoted this depletion (Hg). phenomenon is termed atmospheric events (AMDEs) and its discovery has revolutionized our understanding cycling Hg Polar Regions while stimulating significant amount research understand impact...
Abstract. An airfreight container with automated instruments for measurement of atmospheric gases and trace compounds was operated on a monthly basis onboard Boeing 767-300 ER LTU International Airways during long-distance flights from 1997 to 2002 (CARIBIC, Civil Aircraft Regular Investigation the Atmosphere Based an Instrument Container, http://www.caribic-atmospheric.com). Subsequently more advanced system has been developed, using larger capacity additional equipment improved inlet...
The production and use of long-chain perfluoroalkyl substances (PFASs) must comply with national international regulations. Driven by increasingly stringent regulations, their has been outsourced to less regulated countries in Asia. In addition, the fluoropolymer industry started fluorinated alternatives, such as 2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoic acid (HFPO-DA). Between August 2013 September 2014, we investigated occurrence distribution HFPO-DA legacy PFASs...
Organophosphorus compounds (OPs) being applied as flame retardants and plasticizers were investigated in airborne particles over the Pacific, Indian, Arctic, Southern Ocean. Samples taken during two polar expeditions 2010/11, one from East Asia to high Arctic (CHINARE 4) another toward Indian Ocean Antarctic 27), analyzed for three halogenated OPs (tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl) (TCPP) tris(1,3-dichloro-2-isopropyl) (TDCP)), four alkylated (tri-n-butyl (TnBP),...
Long-term monitoring of data ambient mercury (Hg) on a global scale to assess its emission, transport, atmospheric chemistry, and deposition processes is vital understanding the impact Hg pollution environment. The Global Mercury Observation System (GMOS) project was funded by European Commission (http://www.gmos.eu) started in November 2010 with overall goal develop coordinated observing system monitor scale, including large network ground-based stations, ad hoc periodic oceanographic...
The concentrations of eight organophosphate esters (OPEs) have been investigated in air, snow and seawater samples collected during the cruise ARK-XXVIII/2 from sixth June to third July 2014 across North Atlantic Arctic. sum gaseous particle (ΣOPE) ranged 35 343 pg/m3. three chlorinated OPEs accounted for 88 ± 5% ΣOPE. most abundant OPE was tris(2-chloroethyl) phosphate (TCEP), with ranging 30 227 pg/m3, followed by major OPEs, such as tris(1-chloro-2-propyl) (TCPP, 0.8 82 pg/m3),...
Unlike other heavy metals that are inherently associated with atmospheric aerosols, mercury in ambient air exists predominantly the gaseous elemental form. Because of its prolonged residence time, vapor is distributed on a global scale. Recently, Canadian researchers have discovered total levels lower tropospheric boundary layer Arctic often significantly depleted during months after polar sunrise. A possible explanation may involve oxidation mercury, followed by adsorption and deposition...
The partitioning behavior of per- and polyfluoroalkyl compounds (PFCs) between pore water sediment in two cores collected from Tokyo Bay, Japan, was investigated. In addition, the fluxes temporal trends one dated core were studied. Short-chain perfluoroalkyl carboxylic acids (PFCAs) (C ≤ 7) found exclusively water, while long-chain PFCAs ≥ 11) only sediment. sulfonates (PFSAs), n-ethylperfluoro-1-octanesulfonamidoacetic acid (N-EtFOSAA), perfluorooctane sulfonamide (PFOSA) seemed to bind...
The inventories of global anthropogenic emissions mercury for years from 1979/1980 to 1995 suggest a substantial reduction in the 1980s and almost constant afterwards. In contrast emission inventories, measurements atmospheric concentration increase decrease 1990s. Here we present first attempt reconstruct worldwide trend concentrations direct since late 1970s. combination, long term at 6 sites northern, 2 southern hemispheres, during 8 ship cruises over Atlantic Ocean (1977–2000) provide...
Air and seawater samples were taken simultaneously to investigate the distribution air-sea gas exchange of phthalates in Arctic onboard German Research Ship FS Polarstern. Samples collected on expeditions ARK XX1&2 from North Sea high (60 degrees N-85 N) summer 2004. The concentration sigma6 (dimethyl phthalate (DMP), diethyl (DEP), di-i-butyl (DiBP), di-n-butyl (DnBP), butylbenzyl (BBP), diethylhexyl (DEHP)) ranged 30 5030 pg L(-1) aqueous dissolved phase 1110 3090 m(-3) atmospheric phase....
High volume air samples taken onboard several research vessels in the Atlantic Ocean, Southern and Baltic Sea as well at one land-based site close to Hamburg, Germany, 2007 2008 were analyzed for per- polyfluorinated organic compounds (PFCs). A set of neutral, volatile PFCs such fluorotelomer alcohols (FTOH) or perfluoroalkyl sulfonamides ionic nonvolatile like perfluorinated carboxylates (PFCA) sulfonates (PFSA) collected on PUF/XAD-2/PUF cartridges glass fiber filters determined using...
Diffuse anthropogenic and naturally mercury‐enriched areas represent long‐lived sources of elemental mercury to the atmosphere. The Nevada Study Tests Release Mercury From Soils (STORMS) project focused on measurement emissions from a enriched area. During project, concurrent measurements fluxes substrate were made September 1–4, 1997, using four micrometeorological methods seven field flux chambers. Ambient air concentrations ranged 2 nearly 200 ng m −3 indicating that site is source...