Results 1 - 10 of 232
[REPORT SUMMARY] Aerosol fluxes and their measurement technique
Summary:
Vertical particle fluxes were measured applying condensation particle counter (CPC) model TSI 3010 in the eddy covariance technique. The EC is a widely used method to measure gas fluxes. Different aspects of the method have been described. During the measurement cam...
Programme: FP4-ENV 2C
Record Number: 24474
Last updated on: 2000-05-16
[REPORT SUMMARY] Frequency of aerosol particle formation in boreal forest site
Summary:
Continuous measurements (every 10 min) of submicron aerosol number size distribution shows ca 50 days per year with clearly detectable aerosol particle formation events. Almost 20% of those events will continue sufficiently long to produce particles with diameter ov...
Programme: FP4-ENV 2C
Record Number: 24472
Last updated on: 2000-05-16
[REPORT SUMMARY] The contribution of reactive halogen species to the oxidation capacity of the troposphere reactive halogen species
Tropospheric ozone is responsible for approximately 15% of the antropogenically caused greenhouse effect. It is also the precursor of the hydroxyl-radical, the most important atmospheric oxidant, and thus also responsible for the self-cleaning capacity of the atmosphere. Field...
Programme: FP4-ENV 2C
Record Number: 21712
Last updated on: 1998-11-11
During the time frame of COBRA, new data on gas-phase, photochemical and heterogeneous reactions of bromine species involved in stratospheric chemistry became available. Chemical models were used to assess the impact of these data on bromine chemistry and ozone depletion. Firs...
Programme: FP4-ENV 2C
Record Number: 25777
Last updated on: 2001-03-23
[REPORT SUMMARY] Studies on processes responsible for distribution and evolution of O3 and H2O in troposphere and lower stratosphere
Summary: The existence of ozone-rich transients in the tropical and subtropical high troposphere has been discovered from MOZAIC data obtained during flights crossing the Equator. Several explanations have been proposed, but this strongly suggests that the input of stratospher...
Programme: FP4-ENV 2C
Record Number: 24433
Last updated on: 2000-05-16
[REPORT SUMMARY] Kinetic and thermodynamic data for heterogeneous reactions
The strategy for investigation of heterogeneous reactions has been to investigate uptake of single gas-phase reactants onto surfaces with and without addition of a second reactant. In this way the adsorption characteristics of the individual reactant molecules could be defined...
Programme: FP4-ENV 2C
Record Number: 25776
Last updated on: 2001-03-23
[REPORT SUMMARY] Nitrite biosensor system
Summary:
Using the metalloprotein cytochrome cd1 nitrite reductase as the molecular recognition element, the partners have developed a biosensing system for the detection of nitrite ions in environmental waters. The nitrite reductase has been encapsulated in a silica sol-gel...
Programme: FP4-ENV 2C
Record Number: 24467
Last updated on: 2000-05-16
[REPORT SUMMARY] Purified enzyme - nitrate reductase
Summary:
The metalloprotein nitrate reductase has been extracted and purified from a genetically modified strain of the bacterium Paracocus denitrificans (formerly Thiosphaera pantrotropha). The bacterium was cultured in a 200 I bioreactor and was harvested using a cross-flo...
Programme: FP4-ENV 2C
Record Number: 24466
Last updated on: 2000-05-16
[REPORT SUMMARY] Purified enzyme - cytochrome cd1 nitrite reductase
Summary:
The metalloprotein cytochrome cd1 nitrite reductase has been extracted and purified from the bacterium Paracoccus denitrificans (formerly Thiosphaera pantrotropha). The bacterium was cultured in a 200 I bioreactor and was harvested using a cross-flow filtration syst...
Programme: FP4-ENV 2C
Record Number: 24465
Last updated on: 2000-05-16
[REPORT SUMMARY] Two phase box model
Summary:
A two-phase box model has been developed for the physico-chemical description of the formation and conversions of the oxidation and nitration of aromatics in the gas phase and within aqueous particles. The model considers benzene, toluene, the xylenes, phenol and th...
Programme: FP4-ENV 2C
Record Number: 24471
Last updated on: 2000-05-16
List retrieved on: 2017-08-02
