Long-Term Exposure to Low Levels of Air Pollution and Rate of Mortality


Although quality standards have been set, there is still a strong relationship between poor air quality and mortality rate, according to a study. Researchers found that people who are exposed to low-level of air pollution for a long period of time have a higher rate of death. Let’s find out more.

Studies done in the past found a link between poor health or mortality rate and outdoor air pollution. This type of pollution involves particulate matter and Nitrogen dioxide. These two elements had a negative impact on human health.

Since the 1990s, the concentration of air pollution has reduced considerably across Europe. However, we are not sure whether there is an association between poor health and pollution. Therefore, researchers at the Institute for Risk Assessment Sciences conducted an investigation to find the link between exposure to low levels of air pollution and death rate.

Low-level air pollution refers to a level below the values set by the EU, WHO, and US Environmental Protection Agency. The investigators analyzed data involving 8 groups of people across eight countries namely Australia, Germany, the Netherlands, France, Denmark, and Sweden. So, the total number of people was 325,367.

Of all the participants, around 15% died while the investigation was being done. This happened during a period of 20 years. According to the analysis, people who are exposed to particulate matter and Nitrogen dioxide, and black carbon had a higher likelihood of dying.

A rise of 5 5 µg/m3 in PM2.5 may cause a 13% increase in the rate of deaths, according to the study. Apart from this, the relationship with black carbon, nitrogen dioxide, and particulate matter was low or very low throughout the study.

For individuals who were exposed to a low level of pollution based on the US standard, the rate of death was 29.6%. Apart from this, the study participants who were exposed to Nitrogen dioxide at 50% of the EU standard had a death rate of 9.9%.

Since this is just an observational study, it is difficult to establish the cause of their death. Besides, there are some limitations faced by this study, according to the authors. However, this study involved a lot of your groups, and the information provided was detailed.

Therefore, we can say that outdoor pollution has a link with mortality rate even if the exposure involved a low level of air pollution, according to the World Health Organisation.

Therefore, we can say that these findings are essential for those who want to reduce air pollution. It is essential that we try our level best to minimize our exposure to air pollution no matter what. After all, nobody wants to be at a higher risk of death due to breathing polluted air.

Long story short, we can say that exposure to low levels of air pollution is quite risky. Therefore, if you want to be on the safe side, we suggest that you breathe clean air. For this purpose, you can install a couple of air purifiers in your home and office.

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