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Billions of particles in polluted air pollute the hearts of urban residents



Effects of air pollution on the human heart

More and more air pollution causes health problems and diseases. The effects in our cities seem to be particularly bad. Researchers have now discovered that the hearts of young urban residents contain billions of toxic air pollutants.

A recent study by the University of Lancaster has shown that the hearts of young people in cities contain billions of harmful air pollutants. The results of the study were published in the journal Environmental Research.

A man touches his heart
Increasing air pollution damages the health of our hearts. (Image: freshidea / fotolia.com)

Connection between contaminated air and heart disease

Even the youngest participant in the study, who was three years old, has found injuries in the heart cells due to the presence of small particles of air pollution. Researchers believe that these particles emitted by vehicles and industry could be responsible for the long-established statistical link between polluted air and heart disease. The authors report that exposure to nanoparticles could pose a serious public health problem and necessarily reduce air pollution.

You are affected by all ages

In 2016, researchers found that the same nanoparticles were present in the human brain and could be associated with Alzheimer's injury. Even with this disease, the statistical connection with air pollution was already known. The authors explain that all the negative effects of air pollution are affected by all age groups. Young people found wounds in the heart and brain wounds.

Air pollution can be caused by diabetes and spontaneous abortion

A recent comprehensive report found that air pollution can harm every organ and practically every cell in the human body when the small particles inhale, release into the bloodstream and transport through the body. The resulting damage ranges from diabetes, limited intelligence to increased abortions. The new study is the first direct evidence that iron-rich nanoparticles can cause heart disease. Laboratory tests have already shown that fine particles seriously damage human cells. When a plethora of iron-rich nanoparticles penetrates directly into the subcellular components of the myocardial tissue, the particles damage the so-called mitochondria-energy cell plants.

Air pollution should be reduced

Further efforts are needed to reduce particulate emissions from vehicles, in particular to reduce the number of vehicles on the road. For example, people need to be encouraged to travel for short distances on foot or by bicycle.

We examined the heart tissue of 63 young people

The study analyzed the cardiac tissue of 63 young people who died in road accidents but did not experience breast injury. These people had an average of 25 years and were from Mexico City where it is known that there are high levels of air pollution. The study calculated the number of iron-rich nanoparticles present and analyzed their tissue position and associated damage. The number of particles found was between 2 billion and 22 billion per gram of dried tissue, and their presence was between two to ten times higher among Mexico City residents than among the nine controls that lived in less polluted areas.

The particles are likely to contain other toxic compounds

Researchers have reported that exposure to nanoparticles is directly related to early and significant damage to the heart. The results are important for all countries because there is no reason to believe that the impact would be different in other cities with high pollution, authors add. Techniques used to localize nanoparticles in the heart tissue could not be used to measure their exact composition. Instead, researchers separated tissue particles to determine their composition and magnetic content, and then used the average particle size and magnetism to estimate the total number. Based on previous research, particles are expected to contain additional toxic pollutants. (V)

sources:

  • Lilian Calderón-Garcidueñas, Angélica González-Maciel, Partha S.Mukherjee, Rafael Reynoso-Robles, Beatriz Pérez-Guilléc and others: combustion and nanoparticles of friction in human hearts in environmental research (inquiry: 13.07.2019), Research environment


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