Air quality in Honduras has become one of the country's most serious environmental and public health problems.With recent pollution episodes that have led to alerts, school closures, and airport shutdowns, the country has seen a surge in fine particulate matter concentrations in cities like Tegucigalpa and San Pedro Sula. The combination of forest fires, agricultural burning, and adverse weather conditions has driven these concentrations to levels categorized as "unhealthy," "very unhealthy," and even "hazardous."
Notice regarding the use of air quality data
Before delving into figures and rankings, it is essential to understand that air quality data is dynamic and subject to revision.The World Air Quality Index project, which collects information from hundreds of measuring stations around the world, warns that the records shown in real time have not always passed through all the verification filters when consulted.
According to this project, the information may be modified without prior notice.This is precisely because data quality assurance is prioritized. This means that the concentration figures for particles, ozone, or other pollutants that we see at any given time can be corrected later when the equipment is validated, the algorithms are adjusted, or erroneous measurements are eliminated.
The World Air Quality Index and the responsible team make it clear that they assume no contractual or extra-contractual liability. for possible losses, damages, or harm arising from the direct or indirect use of the information they publish. This warning is common in scientific and technical projects that work with real-time data, because the priority is to provide useful information, even knowing that it may require subsequent adjustments.
For the public, this warning means that air quality maps and tables should be interpreted as a general guide.This is especially useful for deciding whether it's a good idea to exercise outdoors, open windows, or take protective measures. However, it's always advisable to verify this information with official national sources, civil protection advisories, and recommendations from health authorities.
Who measures and reports air quality in Honduras and the region?
In the Central American region, various actors are involved in measuring, analyzing, and disseminating data on air pollution.Platforms such as IQAir or World Air Quality Index collect information from public monitoring networks, private stations and citizen sensors; they then process it and display it in the form of air quality indices (AQIs) that are understandable to the general public.
The IQAir portal has become a reference for understanding the situation in Honduran cities such as Tegucigalpa, San Pedro Sula, Comayagua, and La Ceiba.It assigns a qualitative category to the concentration of PM2.5 particles and other pollutants: “good,” “moderate,” “unhealthy for sensitive groups,” “unhealthy,” “very unhealthy,” and “hazardous.” These labels help to understand at a glance how safe or unsafe the air is for different population groups.
Meanwhile, weather and climate data companies like The Weather Company, owner of The Weather Channel,They also integrate air quality information with their weather forecasts. In fact, independent studies such as those by ForecastWatch have recognized The Weather Channel as one of the most accurate forecasting services globally and regionally between 2021 and 2024, reinforcing its role as a reliable source for anticipating pollution episodes associated with specific weather conditions.
At the regional level, institutions such as the National Institute of Seismology, Volcanology, Meteorology and Hydrology of Guatemala (Insivumeh) They monitor the situation in their own territory, but their analyses are also relevant for Honduras, since smoke from forest fires and agricultural burning can cross borders, driven by the trade windsInsivumeh has gone so far as to describe the air in parts of Guatemala as "very bad" and even "extremely bad" due to the fires, highlighting how interconnected air quality is throughout Central America.
Current air quality situation in Honduras
Honduras is experiencing an air pollution crisis that is especially severe in cities like Tegucigalpa and San Pedro Sula.In 2024, one of the dirtiest air episodes in its recent history was recorded, with levels of PM2.5 fine particles comparable to those of large, highly industrialized metropolises in Asia, such as some cities in China or India.
In San Pedro Sula, PM2.5 concentrations have been recorded that are classified as "very unhealthy".Up to 33,5 times above the limits recommended by the World Health Organization (WHO). This level of pollution poses a high risk to the health of the entire population, not just people with pre-existing conditions.
IQAir has classified the air quality in Tegucigalpa as "very unhealthy" at certain times.While on some days, like Monday, which set a pollution record, the Honduran capital experienced what has been described as the most polluted day in its history. Visibility was so reduced by the dense layer of smog that international airports, such as Toncontín and Ramón Villeda Morales, suspended operations for several hours and some remained closed for even longer.
The situation is not limited to these two citiesSeveral departments, including Santa Bárbara, Comayagua, Yoro, Cortés, and part of Francisco Morazán, have been placed under an indefinite yellow alert due to the impact of the smoke. In at least seven departments, in-person classes were even suspended across the entire education system after the Secretariat of Risk and Contingency Management raised the air quality alert to red.
This pollution episode has also affected the international perception of risk.The U.S. Embassy in Honduras issued a specific warning for U.S. citizens residing in or traveling to the country, noting the possibility of flight delays and recommending that non-essential personnel work remotely during the most critical days, given the hazardous air quality in major cities.
Honduran cities with the most polluted air
Within the pollution map of Honduras, some cities stand out for registering especially high values in the Air Quality Index (AQI)especially with regard to the PM2.5 pollutant, which are very small solid or liquid particles capable of penetrating deep into the respiratory system.
San Pedro Sula tops the list as the city with the most polluted air in the countryData from IQAir indicates PM2.5 levels around 206 in the ICA, a value considered "hazardous." This range indicates that the entire population is exposed to a very high risk of adverse health effects, especially if they remain outdoors without protection.
Tegucigalpa is also at very worrying levels, with PM2.5 readings around 128.This figure falls into the category of "unhealthy for vulnerable groups" or "very unhealthy," meaning that people with respiratory or heart conditions, the elderly, children, and pregnant women are particularly affected. For these levels, it is recommended to wear a mask, minimize outdoor physical activity, and close windows to prevent smoke from entering.
Other mid-sized cities, such as Las Vegas in Santa Barbara, have also recorded high valuesPM2.5 levels in the ICA are hovering around 105, creating a hazardous environment for people with respiratory or cardiac conditions. While these levels are not as extreme as in San Pedro Sula, they far exceed what would be considered moderate or acceptable.
In Comayagua, PM2.5 levels have hovered around 96 in the ICA, while in El Progreso they are close to 88 and in La Ceiba around 84These figures generally fall into the "moderate" category, but that doesn't make them any less concerning. For particularly sensitive individuals, it is advisable to avoid strenuous outdoor exercise, wear a mask when possible, and keep windows closed to reduce the entry of pollutants.
All these cities share the same reality: the air they breathe is, at many times, above the limits considered safe by the WHO.Given this situation, authorities and experts recommend staying informed daily through local media, air quality monitoring websites, and official announcements, as the situation can change from one day to the next, especially during fire season.
Main causes: forest fires and agricultural burning
The main explanation for these pollution spikes in Honduras lies in the forest fires and in traditional agricultural practices based on burning landEvery year, the dry season and the delayed arrival of the rains combine with the intentional burning of forests, scrubland and stubble, generating large volumes of smoke that accumulate over cities.
These fires can be started to clear farmland, renew pastures, or even for speculative purposes.such as the expansion of the agricultural frontier or the illegal occupation of land. Although regulations exist that seek to regulate or prohibit these practices, in reality many of these fires escape the control of the authorities and end up becoming large-scale forest fires.
Uncontrolled biomass combustion releases enormous quantities of particulate matter, especially PM2.5In addition to other air pollutants such as carbon monoxide, nitrogen oxides, and volatile organic compounds, these substances not only reduce visibility and create that "smog" visible from miles away, but they also penetrate the lungs and can reach the bloodstream.
In 2024, various local reports, such as those from the "Report Without Fear" platform, indicate that the practice of agricultural burning has reached an unprecedented intensity.This further exacerbates the smoke episodes affecting large parts of Honduras. Environmental degradation accelerates, biodiversity is lost, and conditions are created that perpetuate the problem year after year, creating a vicious cycle that is difficult to break without fundamentally changing land use practices.
The US embassy in Honduras itself has linked the "unhealthy" and even "dangerous" levels of air quality to agricultural fires.He emphasized that the lack of sufficient rainfall has prevented the smoke from dispersing and washing away from the atmosphere. This has created a layer of pollutants that remains trapped over cities, worsening the breathing conditions of millions of people every day.
Impact on public health and protection recommendations
The consequences of this poor air quality on the health of the Honduran population are profound and worrying.Due to their small size, PM2.5 fine particles reach the deepest areas of the respiratory system and can cross the alveolar-capillary barrier, thus entering the bloodstream and affecting multiple organs.
Prolonged or intense exposure to these levels of pollution increases the risk of respiratory and cardiovascular diseases.Bronchitis, asthma, acute respiratory infections, asthma attacks, worsening of chronic obstructive pulmonary disease (COPD), hypertension, and a higher risk of heart attacks or strokes are among the most vulnerable groups in this scenario. Children, the elderly, people with heart or lung problems, and pregnant women are the most vulnerable.
Institutions such as the WHO recommend adopting individual and collective protection measures when air quality indices reach unhealthy levels.Among the most common actions are reducing outdoor activities, avoiding intense physical exercise outdoors, especially during peak pollutant concentration hours, and using appropriate masks (such as FFP2 or equivalent) when going outside during episodes of heavy smoke.
In Guatemala, Insivumeh has warned that "the entire population is likely to be affected" in situations of "very bad" or "extremely bad" air quality.This warning is easily applicable to similar incidents in Honduras. The Guatemalan agency recommends avoiding outdoor sports without protection and focuses its advice on the most vulnerable groups, who can suffer more severe consequences even from brief exposures.
The suspension of in-person classes and the recommendation of teleworking for non-essential personnel are examples of collective protection measures. These measures have been implemented in Honduras during the days with the worst air quality. The public is also advised to closely monitor official announcements, stay informed through local media, and check real-time air quality indices to make informed daily decisions.
Biomass stoves and fire safety: clearing up misunderstandings
Amid this context of widespread smoke and public concern, some misunderstandings have arisen regarding the role of biomass stoves in air pollution.A national news report even suggested that one way to reduce environmental smoke was to stop using these types of stoves, a claim that, according to experts and specialized organizations, does not reflect the reality of the problem in Honduras.
Biomass stoves used at the domestic level, especially so-called improved stoves, are not comparable, by any stretch of the imagination, to the impact of large forest fires and large-scale agricultural burning.The volume of emissions generated by a stove in a home is limited and, when well designed, installed and used correctly, their purpose is precisely to reduce smoke both inside the home and outside.
Therefore, attributing the massive deterioration of the country's air quality to the domestic use of biomass stoves is a misguided oversimplification. which can divert attention from the structural causes of the problem: the indiscriminate burning of forests and agricultural lands, the lack of effective control over fires, deforestation, and the absence of strong policies to prevent and punish these practices.
It is important to emphasize that, while any combustion generates emissions, the relative impact of an improved stove compared to a forest fire that ravages hundreds or thousands of hectares is negligible.The focus of political action and awareness campaigns should be on reducing these mass burnings, promoting more sustainable agricultural techniques and strengthening forest management, not on demonizing technologies that, when properly implemented, help reduce exposure to smoke inside rural homes.
Justa 3D improved stoves and indoor air quality
In the domestic sphere, one of the most interesting advances for improving indoor air quality in Honduras are improved stoves, such as the Justa 3D model.These stoves are designed to optimize the combustion of firewood or other biofuels, allowing for better heat utilization and reducing the amount of smoke emitted.
The Justa 3D stove incorporates an advanced design that improves airflow and energy efficiency.This allows the firewood to burn more completely. This results in lower fuel consumption for the same tasks (such as cooking or heating water) and, very importantly, a significant reduction in PM2.5 particles both inside and outside the home.
This reduction in emissions is key to the health of Honduran families who still depend on firewood for cooking.Traditionally, many rural homes used open hearths without chimneys or extractor hoods, which generated a concentration of smoke inside that was associated with chronic respiratory diseases, eye irritation, headaches and other health problems, especially in women and children who spend more time in the kitchen.
The improved stoves allow for the channeling of smoke to the outside and the burning of biomass in a cleaner way.This significantly reduces the risk of direct exposure to indoor pollutants. In fact, these technologies align with WHO recommendations on indoor air quality, which advocate for promoting clean cooking solutions as part of a broader public health strategy.
It is important to emphasize that Justa 3D stoves and other similar technologies are not a determining factor in the large-scale air pollution crisis that Honduras is experiencing.Rather, they are part of the solution to improve air quality inside homes, while modestly contributing to reducing emissions into the atmosphere by consuming less firewood and burning it more efficiently.
Institutional responses, legal frameworks and cooperation
The magnitude of the air quality problem in Honduras demands a serious, sustained, and multi-pronged institutional response.It is not enough to manage the emergency once the smoke has already covered the cities; it is necessary to act on the causes that generate the fires and chronic pollution.
First, a thorough review of agricultural and forestry policies is required.Encouraging practices that do not rely on burning to clear or prepare the land. Farmer training programs, financial support for alternative techniques, and the promotion of agroforestry can help reduce the need to use fire as a soil management tool.
Secondly, it is essential to strengthen the legal and punitive framework against those who intentionally start fires.Classifying these behaviors as serious crimes against public health and the environment, with effective penalties and monitoring mechanisms to identify them, is a key step in deterring potential offenders. Without actual enforcement, regulations are meaningless.
International cooperation also plays an important role, both in terms of funding and technology transferExternal support can help modernize air quality monitoring networks, strengthen early fire warning systems, and develop forest restoration projects that reduce the territory's vulnerability to future fires.
Finally, raising public awareness is an essential pillarIf the public understands the impact that burning trash, crop residue, or forests has on their own health and that of their children, they will be more likely to adopt behavioral changes and demand decisive action from the authorities. Combating air pollution requires that the government, civil society, and the private sector all work together.
This entire network of data, alerts, sources of pollution, health impacts, and technological and political solutions paints a complex but not insurmountable picture.Honduras has an opportunity to transform its land management and domestic energy practices to breathe cleaner air in the future, and this involves drastically reducing agricultural fires and burning, strengthening environmental legislation, promoting improved cookstoves in homes, and relying on science and international cooperation to make informed decisions.
