For Swiss cities there are strict rules with regard to the fine-dust pollution. Thus, the air is allowed a daily limit of 50 micrograms of particulate matter per cubic meter of air, do not exceed. This limit applies only to the outside air and not the air, the stations in the railway, underground, accumulates.
As the Newspapers of the “CH Media” letter, published by the SBB now the individual Figures from a company-internal study, which show that the values in the Zurich main train station are far more than the Federal allowable limit. So to be found on the underground tracks 41 to 44, fine dust values of up to 111 micrograms per cubic meter of air.
burden, since 2004
halved the limit value, This is more than twice as high as the allowed days. The maximum annual average value is almost six times as high as allowed. SBB, this is for years. Compared to the Newspapers of the CH Media is noted, however, that the air pollution in the underground station, since 2004, has halved. Reason gentler brakes used in trains are. In addition, Smoking is since the 2004 ban.
The SBB defended the high values in the station with the limit value for fine dust at the workplace. This is 300 times greater than those for the fresh air. The Problem, however, is that at the Zurich main station, the work ends with the commuters mix. According to the Federal office for the environment, the burden is on the short residence time of the commuters but only is relatively low. Additional measures are not necessary.
Problem for asthmatics
The Nino Künzli Swiss tropical and Public Health Institute, confirmed to the Newspapers of CH Media: “There are no studies of the long-term effects of regular, very short, loads of fine-dust-rich air, such as driving experience you have studied.” Only in asthmatics and sensitive individuals, it could come to a temporary breath go complaints.
The workers at the station, such as, for example, the sales staff of the shops in the shop Ville, the stress but in the longer term. This is, however, justified by the fact that the daily recommended values is relatively strictly set, since they are also highly sensitive people must be protected.
A Change is sought by the SBB. This, although projects in other countries show how, for example, in Stuttgart, that the attachment of a filter system can improve the burden from fine dust in closed rooms up to 80 percent. (doz)
Created: 27.03.2019, 10:48 PM
