A study in Britain of 4,000 people showed that people living on busy roads were the most important heart compared to those living in less polluted areas.
Nevertheless, respondents were in contact with the pollution levels defined by the UK guidelines.
The researchers met with the government to reduce air pollution faster.
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A team of researchers led by Queen Mary University in London analyzed the health data of those who did not have inherent heart problems and were included in the UK BioBank study, including their heart, weight and their function.
The researchers also found the level of pollution in the areas where they lived.
His study found a clear link with high levels of contamination and large ventricles to the right and left - important pumping chambers in the heart.
For each additional microgram of PM 2.5, for small air pollution particles - and for every additional 10 micrograms per cubic meter of nitrogen dioxide, the core reaches about 1%.
Dr. Ny Aung, who led the analysis of the studies, said the changes were comparable to hypertension or inertia.
He stated that "air pollution should be considered as a modified risk factor".
"Physicians and the public need to be aware of their risks when thinking about heart health because they think about blood pressure, cholesterol, and weight."
The exact location of the inhabitants was not included in the study, most of them were in major UK cities and all were exposed to levels of PM 2.5 air pollution below British borders existing.
In the study, the average annual exposure for PM 2.5 was 8 to 12 micrograms per cubic meter.
It is less than 25 micrograms per cubic meter, but the cubic meter of the World Health Organization is close to the recommended limit of 10 micrograms.
This particulate particulate contamination is particularly dangerous as it penetrates deep into the lungs and the cardiovascular system.
In the study, the exposure to nitrogen dioxide is 10 to 50 micrograms per cubic meter - the United Kingdom and the WHO range is 40 micrograms per cubic meter.
DR. Ang said the change in the heart was weak and potentially reversed.
But he said the fact is that any changes have been suggested to discover that even a relatively low level of air pollution can have adverse health effects.
"If you think the current level of air pollution is safe, then in theory we should not be able to detect change," said Dr. Ang.
The British Heart Foundation, co-funded by the study, said the results showed that governments and public health organizations needed to work faster to improve air quality.
In BHF, Professor Jeremy Pearson, Professor Jeremy Pearson, funded the study and said, "We can not wait for people to return home to avoid air pollution - to secure government and government agencies . Should act and protect the population from these disadvantages. "
Professor Pearson also met with the government to adopt the WHO guidelines on air pollution.
He said: "Keeping these goals in mind will help improve the lives of people with heart disease and circulatory diseases because we know they are particularly affected by air pollution."
One of the restrictions of the study published in the press review is that it can not show a causal link between air pollution and an enlarged heart.
It is impossible to say how many people will have heart disease in the study with an extended heart.
Professor Kevin McKenway, an emerging professor of applied data at the Open University, who was not involved in the research, said the study provided strong evidence of a link between pollution levels and cardiac changes.
But he said "can not tell everything".
He said: "Heart disease is affected by a wide range of factors - smoking, alcohol, diet, exercise, social status, etc."
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