It also appears that the process works well under high pressure. A number of promising reactor concepts were presented in a feasibility study. Preparations have been made for testing the process in a practical arrangement with existing production installations. Fine dust Within the Clean Fossil Fuel programme it was demonstrated last year that aerosols can obscure the greenhouse gas effect. Nitrate and organic substances in par ticular seem to play a more important role than has so far been assumed.
Further research is needed to reveal the actual mechanisms.
A method has been developed for measuring nitrate, based on the previously developed so-called Steam Jet Aerosol Sampler, which has been tested successfully in the United States. Fine dust measurements have been undertaken around motorways. The experiments demonstrate that the amount of smaller particles in fine dust is more essential for determining the health effect than the total quantity of fine dust. The urban environment and its effect on health is mainly determined by PM-1 dust. In terms of importance for this invention there was indeed a positive stimulus to continue the work on this subject.