Care for the environment and air quality, fundamental first COVID-19


Ask scientists to strengthen actions in favour of the climate, environment and biodiversity, to enhance the collective defences


Mexico.- In the framework of the sanitary contingency by the COVID-19, a group of mexican scientists presented the document “Coronavirus, SARS-CoV-2, air pollution and health risks”, a short compilation of the relationships between exposure to air pollution and the spread and severity of viral diseases.

The goal of the writing given to us by the experts of the health and air pollution in our country, who work in the public sector and the academy, is to contribute to the analysis and informed decision-making on the part of the authorities and the population.

The document points out that face to the pandemic caused by SARS-CoV-2 in full dry season-hot, with conditions that favour high levels of ozone and suspended particles, which increases the risk of the population to suffer allergies and respiratory diseases.

Exposed to air pollutants such as ozone and particulate matter (PM10 and PM2.5 significantly increase the irritation and inflammation of the respiratory system and favor the morbidity induced by the virus, reducing the immune capacity of the body against viruses and bacteria.

The formation and accumulation of these particles is given especially this season, favored by the atmospheric conditions and caused by the forest fires, burning of agricultural, pasture, and waste, he adds.

It also indicates that with the latest published information on the COVID-19, it is known that it impacts in the upper airway, producing a condition mild respiratory, but in 15 percent of patients are produced effects on the lungs, causing pneumonia that compromise the lives of the sick.

The present records show that the impacts by the COVID-19 are presented in sensitive groups, such as older adults, people with chronic diseases such as diabetes, hypertension, cardiovascular disease, or depression of the immune system due to any disease (such as HIV) or treatment (such as chemotherapy), which presents the highest rate of mortality.

The scientific evidence explains that episodes like the one we live in can be combined with micro-organisms or different species (for example, the proliferation recent of kelp in the Caribbean), events, hydrometeorological extremes, or the scattering mass of toxic pollutants, which will continue happening in the future, creating the conditions for that are increasingly severe.

The document notes the importance of ensuring the smooth operation of the networks monitoring air quality, and the correct and timely communication of risks to sensitive groups, while emphasizing the benefits brought by the recommendations issued by the authorities, such as the significant reduction in the likelihood of transmission of the virus.

Furthermore, to improve air quality by reducing the emission of pollutants, as has happened in cities of Europe and Asia. As the Air Quality Index continued indicating high levels of ozone or particulate matter in the most populated cities of Mexico, staying at home will favor the reduction to the exposure and avoid the synergistic effects between air pollution and contagion.

In addition, the insulation will prevent people sensitive to air pollution are exposed and may present some symptoms similar to those generated by the COVID-19, generating false diagnoses.

The scientific document can be consulted on the website of the National Institute of Ecology and Climate Change: – pollution-atmospheric-and-the-risks-to-the-health?idiom=es