Researchers have now published a long-term study, they have determined the health effects of fine dust. Your frightening result: The polluted air is a serious health risk. It lung diseases such as COPD, threaten, two groups are particularly at risk.
The dirtier the air is, the faster the lung ages. According to an analysis of the health data of more than 300,000 people, an international research puts the team in the context: Five micrograms (millionths of a gram), more fine dust the particle size of PM2. 5 per cubic meter of air, on average, two years of natural lung aging.
There is also the risk of developing a chronic obstructive pulmonary disease (COPD) will increase. In the case of COPD, the breathing constricted ways, which hampers especially the Exhale. Early symptoms include daily cough, especially in the morning, and shortness of breath to climb about the stairs.
The study by the team of Anna Hansell from Imperial College London is published in the “European Respiratory Journal”. The researchers used data from the British long-term study "UK Biobank". The subjects were at the time of the survey (2006 to 2010), 40 to 69 years old. The geo-coded origin of the subjects put the researcher values for nitrogen dioxide (NO2) and particulate matter of sizes PM2. 5 and PM10 (for particles sizes of 2.5 and 10 micro-grams).
"Disturbing we found, that the air pollution hold much greater impact on people from low income households hatte", is Hansell cited in a communication from the European Lung Foundation to the study.
People with lower incomes are at greater risk of
The decline in lung function was among people with low income twice as high as in the case of people with higher incomes, even if both were exposed to the same dust levels. The risk to develop COPD, even three times as large.
As possible explanations for this phenomenon more infections of the respiratory tract in children, worse housing conditions and air quality in the indoor environment, poor nutrition, and the fine dust exposure in a professional environment, to come according to the researchers in question.
In addition, the statistical relationship between particulate matter and lung functions in men and in people with Occupations in which they can be fine dust was exposed to, is particularly large. A stronger connection of fine dust and COPD, the researchers also noted in obese people.
- Also read: warning signs note: COPD is announced years in advance
In asthmatics he was, however, lower than in non-asthmatic participants. "This may be related to the treatment of patients with asthma, the adverse effects of air pollution verändern", the researchers write. Alternatively, an avoidance attitude was conceivable, if, for example, asthmatics who are aware of the effects of air pollution on the symptoms, you will want to live in less polluted areas.
Polluted air reduces the life expectancy
The President of the European Respiratory Society, Tobias Welte of the University of Hannover, said: "The results of this large study confirm that the exposure causes damage to polluted air, human health seriously, by lowering life expectancy, and people are more prone to the development of a chronic lung disease that makes."
Governments had a responsibility to protect this right by ensuring that the by the world health organization (WHO) has specified maximum contaminant would not hurt values in our cities and municipalities.
The fine dust PM2. 5 the WHO recommends as the maximum value of 10 micrograms per cubic meter of air, annual average, shall apply in the EU 25 micrograms.
The study participants lived in a residential area with more than 10 micrograms of PM2. 5 per cubic meter of air, had a four times higher risk for COPD than people who were at home, exposed to passive smoke.
Germany is setting a good example
Environmentalists have long called for tougher EU limit values for fine dust of this size. In Germany, the fine particulate pollution, according to the Federal office for the environment in the past few decades has declined significantly. Thus,the PM2. 5 emissions decreased from 0.2 million tonnes in 1995 to 0.1 million tonnes in the year 2016.
You can see in the Video: In this town you can breathe the cleanest air of Germany
FOCUS Online/Wochit you will See in the Video: In this city, breathe the cleanest air of Germany