A5038799355- Microbial bioremediation and biosurfactants
- Microbial Community Ecology and Physiology
- Climate Change Policy and Economics
- Pesticide and Herbicide Environmental Studies
- Sustainability and Climate Change Governance
- Pharmaceutical and Antibiotic Environmental Impacts
- Toxic Organic Pollutants Impact
- Energy, Environment, and Transportation Policies
- Soil Carbon and Nitrogen Dynamics
- Wastewater Treatment and Nitrogen Removal
- Marine and coastal ecosystems
- Oil Spill Detection and Mitigation
- Geochemistry and Elemental Analysis
- International Development and Aid
- Soil and Water Nutrient Dynamics
- Petroleum Processing and Analysis
- Atmospheric and Environmental Gas Dynamics
- Hydrocarbon exploration and reservoir analysis
- Environmental Toxicology and Ecotoxicology
- Radioactive element chemistry and processing
- Mycorrhizal Fungi and Plant Interactions
- Marine Bivalve and Aquaculture Studies
- Enzyme-mediated dye degradation
- Microplastics and Plastic Pollution
- Isotope Analysis in Ecology
Finnish Environment Institute
2012-2025
Freie Universität Berlin
2011-2021
Umeå University
1997
University of Helsinki
1997
Michigan State University
1993
Aarhus University
1987-1989
Bacteria were isolated and characterized from uncolonized soil, nonmycorrhizal mycorrhizal short roots, soil-colonizing external mycelium intact Pinus sylvestris - Suillus bovinus Paxillus involutus mycorrhizospheres developed in microcosms containing dry pine forest humus or nursery peat. Total numbers of colony-forming units (CFU/mg weight) the different locations all ectomycorrhizospheres indicated an overall bacterial-enrichment gradient towards whereas sporeformers more evenly...
The seasonal variation and depth distribution of the capacity for denitrification dissimilatory NO 3 − reduction to NH 4 + (NO ammonification) were studied in upper cm sediment Norsminde Fjord estuary, Denmark. A combination C 2 H inhibition 15 N isotope techniques was used intact cores short-term incubations (maximum, h). exhibited two maxima, one spring fall, whereas ammonification maximal late summer, when sediments progressively reduced. always highest uppermost 1 declined with depth....
Measurements of N 2 O production (release free O), nitrification, and denitrification were made simultaneously in NH 4 Cl- KNO 3 -amended suspensions marine sediment. An open flow system was designed for the application low partial pressures (0–10 kPa) to The overall rate increased dramatically at lowest tensions (0–0.2 had a maximum complete anoxia. specific rates from nitrification (N n ) d determined after separation processes with inhibitors. Within range 0–0.2 kPa , showed an apparent...
The special issue brings together experts and scholars from India the European Union to examine how climate renewable energy policies are framed at subnational level through a compilati...
A pilot-scale composting of chlorophenol-contaminated soil was performed to compare chlorophenol degradation by two different inoculants, straw compost and remediated soil, with that indigenous microbes. Four piles a size 13 m3 each were constructed. Chlorophenol chloroanisole concentrations as well numerous physical microbiological parameters monitored during 6 months composting. Over 90% the chlorophenols removed period. The biodegradation efficient fast despite inocula. Frequent mixing...
We evaluated the use of straw compost and remediated soil as inocula for bioremediation chlorophenol-contaminated soil. The in situ biotransformation pentachlorophenol (PCP) mineralization radiolabeled [U-(sup14)C]PCP by were studied under field-simulating conditions before after 3 months adaptation with PCP a percolator. After adaptation, mineralized up to 56% [(sup14)C]PCP. No partial dechlorination was found. native did not mineralize PCP, but occurred (i) at pH 8 near-thermophilic...
Two long-term potentially oil exposed Baltic Sea coastal sites near old refineries and harbours were compared to nearby less in terms of bacterial, archaeal fungal microbiomes degradation potential. The diversities similar sampling based on bacterial 16S rRNA gene 5.8S amplicon sequencing from both DNA RNA fractions. number genes participating alkane (alkB) or PAH-ring hydroxylation (PAH-RHDα) detected by qPCR all water sediment samples. These numbers correlated with the copies samples but...
This article introduces the EU Horizon 2020 research project GRACE (Integrated oil spill response actions and environmental effects), which focuses on a holistic approach towards investigating understanding hazardous impact of spills impacts benefits suite marine technologies in cold climate ice-infested areas North Atlantic Baltic Sea. The methods considered include mechanical collection water below ice, situ burning, use chemical dispersants, natural biodegradation, combinations these....
ABSTRACT The growth and metal enrichment of ferromanganese minerals on the seafloor have intrigued many studies, yet role microbes in process has remained elusive. Here, we assessed microbial influence trace accumulation release concretions from Baltic Sea using 12‐week microcosm incubation experiments. We studied three concretion morphotypes: Crust, discoidal, spheroidal, with biotic abiotic treatments. samples were collected into bottles containing artificial brackish seawater Gulf...
The Baltic Sea blue mussel (Mytilus trossulus) plays a crucial role in this brackish water ecosystem, filtering and accumulating pollutants. This study investigated how exposure to crude oil dispersants affects the microbiome of M. trossulus at two salinities (5.6 15) over 21 days. Results showed that dispersant use significantly increased accumulation polycyclic aromatic hydrocarbons (PAHs) tissues, particularly lower salinity. microbial communities gills digestive glands were notably...
The hypothesis that Pinus sylvestris L. root and mycorrhizosphere development positively influences bacterial community-linked carbon source utilization, drives a concomitant reduction in mineral oil levels petroleum hydrocarbon- (PHC-) contaminated soil was confirmed forest ecosystem-based phytoremediation simulation. Seedlings were grown for 9 months large petri dish microcosms containing either humus or amended with cores of PHC-contaminated soil. Except increased biomass the humus/PHC...
We present here an aquifer scale study on the fate of potassium formate, alternative, weakly corrosive deicing agent in soil and subsurfaces. Potassium formate was used to deice a stretch highway Finland. The examined by monitoring groundwater chemistry underlying which conceptual model constructed. In addition, we determined aerobic anaerobic biodegradation rates at low temperatures (−2 +6 °C) microcosms. Our results show that did not enter saturated zone through thin vadose zone; thus, no...
The abundant deposits of spherical iron-manganese concretions in the Gulf Finland are colonized by bacteria vast numbers. Communities on surface and porous interior have formed two separate clusters, accordance with their genetic differences. overall bacterial community was highly diverse, representing 12 phyla. Half were affiliated most common classes Proteobacteria, while a third unclassified. Cloned 16S rRNA-gene sequences concretion showed high scores for similarity to obtained from sea...
This article sheds light on multi-level climate governance in the particular context of India and scrutinizes role India's subnational states play policy. It uses an analytical lens that combines "laboratories experimentation". The first part clarifies concept deals with phenomenon experimentation structures from a theoretical background. second explores structure therein specific emphasis development renewable energy. third looks at multi-tiered action planning processes, considers how...
Experiments were undertaken to explain the occurrence of a high denitrification capacity in anaerobic, NO 3 - -free habitats. Deep layers freshwater sediments that buried more than 40 years ago and digested sludge habitats studied. The denitrifier populations 3.1 × 10 5 cells cm -3 deep from river lake, respectively, 5.3 6 sludge. capacities samples reflected population densities. Strict anaerobic procedures used obtain predominant isolates would grow on medium with . All strict anaerobes...