In winter in Yerevan, temperature inversions cause pollutant emissions from transport and heating to accumulate near the ground, and PM2.5 concentrations can reach 200–300 µg/m³. Individual gas boilers produce little visible smoke but emit NOx, which in the atmosphere converts into secondary particles (e.g., ammonium nitrate) and increases PM2.5. At high relative humidity and in fog, reactions in water droplets accelerate: precursor gases (NOx, SO2) form nitrate and sulfate aerosols, increasing particle mass. Optical sensors (Clarity Node-S with Plantower sensors) are sensitive to moisture, so readings are adjusted using QA/QC procedures and calibrations. PM2.5 spikes in fog are due both to a real increase in aerosol and to partial methodological measurement artifacts. Fog and high humidity do not clean the air; they can intensify pollution and increase health risk.
Air quality in Yerevan in January 2026:
Yerevan City Hall has announced a tender for the construction and operation of a waste-processing plant in Nubarashen, which could significantly affect air quality in the coming years. The project envisions processing up to 300,000 tons of waste per year to reduce the share of landfilling and cut the “landfill” plume and fire risks. A separate environmental issue is the production of RDF fuel: burning it requires modern air-cleaning systems that Armenia does not yet have, making effective emissions monitoring crucial. The technical specifications cite compliance with EU Directive 2010/75/EU and the need for filters to capture fine particles and toxic gases. The project also includes biological stabilization of organic waste to reduce methane emissions and prevent spontaneous combustion at the landfill.
Air quality in Yerevan in January 2026:
The author describes how life in Yerevan has come to mean checking the air quality index every day and using a sensor on the balcony. In winter, pollution levels often exceed international standards and can reach dangerous values, prompting people to keep windows closed, limit walks, and wear masks. He notes that Yerevan’s authorities have long responded cautiously and at times skeptically, criticizing data from independent platforms, even though various measurement sources and residents’ well-being point to a problem. According to investigative journalism, the city’s air shows exceedances for dust, while monitoring of fine particulate matter (PM2.5/PM10) remains insufficient. Visible sources include construction sites without dust suppression, heavy truck traffic, shrinking green spaces, the smoldering Nubarashen landfill, dirty heating, burning leaves, and old cars. The author urges treating clean air as a matter of politics and enforcement, so that pollution does not shorten residents’ lives or push people to leave.
Air quality in Yerevan in December 2025:
On December 25, the Armenian government approved a procedure for state monitoring of ambient air quality, as well as the collection, analysis, assessment, and publication of data. The document notes that previous procedures did not include air quality assessment from the perspective of health risks or recommendations for precautionary and preventive measures for the public, including vulnerable groups. The roles of state agencies in informing the public in cases of pollution limit exceedances were also not legally defined. The new procedure establishes rules for monitoring, data processing, and public disclosure, and introduces provisions on the air quality index and alert thresholds. State monitoring and data provision are assigned exclusively to the Hydrometeorology and Monitoring Center under the Ministry of Environment, and a Japanese grant will be used to modernize three monitoring stations with modern automated equipment.
Air quality in Yerevan in December 2025:
The article describes the deterioration of air quality in Yerevan, framed as a public health issue, particularly due to high concentrations of fine particulate matter (PM2.5). Key sources of pollution include construction dust (including weak oversight and numerous unfinished building sites), active quarries and mineral extraction, and transport emissions. Fires and chronic problems at the Nubarashen landfill are also cited as factors polluting the air with toxic substances. It notes that geographic and climatic conditions can “trap” pollution but are not its root cause. The piece also highlights a lack of up-to-date monitoring data, plans to modernize monitoring stations, and authorities’ intentions to tighten requirements and fines (for example, for missing protective netting at construction sites) and to develop solutions such as electric vehicles and waste-management reform.
Air quality in Yerevan in December 2025:
By decision of the Prime Minister of the Republic of Armenia, an interagency working group has been established to address issues of ambient air pollution. The composition of the working group has been approved, and it is headed by Deputy Prime Minister Tigran Khachatryan. The head of the group is required to report to the Prime Minister every 15 days on the results of the work. Monthly broad public information and coverage of the group’s activities are also предусмотрено. If necessary, the working group may establish specialized subgroups.
Air quality in Yerevan in December 2025:
Yerevan City Hall stated the need to combat the burning of leaves, and Armenia’s Inspectorate is using drones to track down villagers who set leaves on fire. However, in a field between the Avan Football Academy and Acharyan Street—used for several years by "Yerevan Greening" as a dump—branches and leaves continue to be burned. This causes heavy smoke and worsens air quality. "Yerevan Greening" was fined for the deliberate burning of waste. The situation highlights a contradiction between the authorities’ statements and the actual actions of the organizations responsible for urban greening.
Air quality in Yerevan in November 2025:
In the Dilijan area near the “Mountain Armenia” sanatorium and in surrounding forested areas, wildfires were completely extinguished on November 27. The Rescue Service of the Ministry of Internal Affairs has set up monitoring duty, and citizens are urged to strictly follow fire safety rules. At the time of filming, isolated smoldering hotspots were still observed; they were contained by Tavush civil defense teams. The article is illustrated with photos of the fire’s aftermath. As for the air, smoke persists in parts of the area, which may temporarily worsen air quality.
Air quality in Yerevan in November 2025:
The article notes that high levels of air pollution can contribute to the development of various diseases, primarily respiratory, cardiovascular, and allergic conditions. Ruben Grigoryan, a representative of Armenia’s Ministry of Health National Center for Disease Control and Prevention, explains that air pollution indicators in Yerevan remain within acceptable standards and that no special measures are required. Residents are advised, if possible, to keep windows closed, especially in areas close to fire zones, and to avoid physical activity. The increase in air pollution is attributed to unfavorable meteorological conditions—lack of wind and the accumulation of cold air. Overall, the air quality situation in Yerevan is being monitored.
Air quality in Yerevan in November 2025:
Since November 21, fires have been reported in various regions of Armenia, believed to be caused by burning dry leaves and stubble. The Ministry of Environment reports damage to forest areas where grass and trees have burned. Rescue services, the eco-patrol, and equipment have been deployed to extinguish the fires, including aerial reconnaissance and helicopter firefighting. Authorities urge residents to avoid setting fires when clearing land, as it worsens soil quality and harms health and biodiversity. Burning plant residues is prohibited by law and punishable by a fine. The article focuses on the impact of the fires on the environment and air quality.
Air quality in Yerevan in November 2025:
With the onset of winter, the air pollution problem in Yerevan intensifies, driven not only by weather conditions but also by the burning of leaves and garbage and the use of firewood for heating. Mayor Tigran Avinyan noted a significant deterioration in air quality due to major fires and emphasized the danger of toxins from such blazes. Sensors installed in the city confirm that the atmosphere becomes unhealthy, especially during the winter months. The authorities intend to tighten oversight of waste burning, which is already prohibited by law. The Environmental Protection Inspectorate has also taken up the issue, and the mayor’s office plans to obtain additional enforcement powers. Despite these measures, pollution levels remain high during the winter period.
Air quality in Yerevan in November 2025:
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“Air Quality in Yerevan Will Worsen by Winter, Avinyan Explained Why” on newsarmenia.am →
Due to an anticyclone in recent days and a lack of wind in the Ararat Valley, cold air has stagnated, leading to increased air pollution. Armenia’s Ministry of Environment Hydrometeorology and Monitoring Center reports rising concentrations of nitrogen and sulfur dioxides, while dust levels remain unchanged. Over the next five days, the current meteorological conditions are expected to persist, with a further gradual increase in air pollution. Such conditions hinder the dispersion of pollutants in the region’s atmosphere. The warning emphasizes the need to pay close attention to air quality during this period.
Air quality in Yerevan in November 2025:
Armenia has failed its reforestation and afforestation programs: despite international commitments to increase forest cover, implementation has been minimal and ineffective. A Hetq investigation shows that of the pledge to raise forest cover to 13%—planting about 50,000 hectares by 2030—only around 2% has been carried out, roughly 1,000 hectares, and many plantings do not survive due to poor site selection and lack of maintenance. Some work is carried out on unsuitable land (including swampy areas), and there are discrepancies between reported and actual planted areas. Substantial state-budget funds and international grants are being spent with little tangible result, while NGOs that provide maintenance and monitoring demonstrate much higher survival rates. The article notes that trees clean the atmosphere and absorb CO₂, affecting air quality, but under the current approach these benefits are not being achieved.
Air quality in Yerevan in October 2025:
A fire has again occurred at the Nubarashen landfill in Yerevan. The report of the blaze came in during the evening, and six fire crews and 27 rescuers were involved in extinguishing it. The last similar incident at this landfill was in August. Burning waste at the site can affect the city's air quality, raising concerns among residents and authorities. The report notes the involvement of civic and government bodies in addressing the aftermath. Repeated fires at the landfill point to a waste management problem and an environmental threat.
Air quality in Yerevan in October 2025:
Yerevan mayor Tigran Avinyan denied rumors of poor air quality in Yerevan during the summer and autumn months, noting that this is not true. According to him, data from 166 installed devices confirm good air quality in August and September. However, he warned that air quality problems may begin in November. It was especially noted that construction work in certain areas is creating local pollution. Authorities intend to toughen penalties for developers who violate requirements to control dust and pollution. Additional disciplinary measures against violators will be taken in December.
Air quality in Yerevan in October 2025:
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“The main air pollution problem in Yerevan occurs in winter: Tigran Avinyan” on ecolur.org →
“Mayor of Yerevan says there are no air quality problems in Yerevan in summer” on newsarmenia.am →
On September 29, 2025, Armenia's Minister of Environment Ambartsum Matevosyan and Japanese Ambassador Aoki Yutaka signed a grant agreement for economic and social development. Japan will provide Armenia with approximately $1.7 million to modernize air quality monitoring stations and procure equipment for the Hydrometeorology and Monitoring Center (a state non-commercial organization). This will improve the air pollution monitoring system, enhance data quality control, and help establish a sustainable environment. Reference stations have already been purchased with state funding. The Japanese government's grant will be an important continuation of environmental reforms in Armenia.
Air quality in Yerevan in September 2025:
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“Armenia's air monitoring system to be modernized with Japan's support” on env.am →
“Japan to help Armenia modernize atmospheric air quality monitoring” on newsarmenia.am →
“Automatic air pollutant monitoring equipment to be installed in Yerevan” on news.am →
Yerevan has been recorded as having the worst air quality in the South Caucasus, which negatively affects the country's attractiveness. UN Resident Coordinator Francoise Jacob noted problems of land desertification and river pollution caused by agriculture, construction and mining activities. Only 0.6% of GDP is allocated to Armenia's environmental protection. Ahead of COP17, the importance of transitioning to a 'green' economy and restoring forests as a measure to improve air quality is particularly emphasized. Jacob urged Armenian banks to support sustainable development projects. The role of the state in protecting biodiversity is also underscored.
Air quality in Yerevan in September 2025:
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“Air pollution in Yerevan is 3-5 times above the permissible limit” on news.am →
The article examines the deterioration of air quality in Yerevan caused by regular fires at the Nubarashen landfill and other factors. Residents suffer from smoke, dust, and toxins, leading to allergies and respiratory problems. The city lacks a modern air quality monitoring system, and existing stations are not sufficiently effective. Experts point to the impact of industrial emissions, motor vehicle traffic, and a lack of green spaces on air quality. Yerevan authorities have for years postponed the construction of new landfills and a recycling facility, which worsens the problem. The article underscores the severe impact of air pollution on public health.
Air quality in Yerevan in September 2025:
The Environmental and Subsoil Inspection Authority published inspection results for the first half of 2025 in the field of air quality protection. A total of 195 violations were recorded, including breaches in construction, manufacturing, and mining, as well as illegal transport of bulk materials and burning of waste. 134 administrative sanctions were imposed and fines totaling 9,650,000 drams were levied. Environmental damage was estimated at 100,544,532 drams. Four decisions were issued to suspend the activities of entities operating without permits for maximum permissible emissions. The main focus is on damage caused to air quality.
Air quality in Yerevan in August 2025:
The Government of Armenia has approved the Ministry of Environment’s project to fully modernize the air quality monitoring system by 2030. The new plan calls for implementing advanced standards aligned with World Health Organization recommendations, as well as upgrading laboratories and tools for modeling and forecasting air pollutants. The measures are intended to improve ambient air quality and promote better public health. The system upgrade will help modernize the state's air protection policy.
Air quality in Yerevan in August 2025:
On July 10, 2025, the head of the Inspection Body for Environmental and Subsoil Protection, Ovannes Martirosyan, presented the results of supervisory activities for 2022-2024. Inspections were carried out in the areas of biodiversity, subsoil use, air quality, water resources, land use, and waste. In the field of air protection an increase in the number of detected violations was recorded (397 cases in 2024), and the total environmental damage sharply rose in 2024 to 2.35 billion drams. Administrative fines were also imposed for cases of air pollution. Inspection measures led to the suspension of operations at a number of facilities. The main focus is on monitoring violations and minimizing damage to the natural environment, including air quality.
Air quality in Yerevan in July 2025:
As part of the program for active civil society participation in Yerevan’s “Green Transition,” a roundtable was held dedicated to the city’s air pollution problems. Participants included representatives of the Yerevan municipality, the Ministry of Environment and other agencies, as well as journalists and civil society organizations. Key proposals included improving transportation, banning the burning of waste and landfills, creating green zones, strengthening oversight of industrial facilities and ensuring compliance with the law on atmospheric air protection. It was also recommended to obtain reliable data on air pollution and to monitor public health. These measures are aimed at improving air quality in Yerevan.
Air quality in Yerevan in June 2025:
Yerevan Mayor Tigran Avinyan met with the President of the Autonomous Community of Madrid, Isabel Díaz Ayuso, to discuss possible areas of cooperation between the cities. The meeting focused in particular on Madrid’s successful experience in improving air quality. It was agreed that Yerevan will study and apply effective solutions implemented in Madrid. The main goal is to adapt these best practices to improve air quality in the Armenian capital.
Air quality in Yerevan in June 2025:
Armenia is implementing a five-year program to reduce atmospheric pollution, under which 16 air pollution monitoring stations will be purchased, 14 stationary and 2 mobile. Some of the devices have already been financed by foreign donors, and the rest are also planned to be purchased with donor support. A draft decree will be prepared requiring the use of water trucks to reduce dust at construction sites and mines, which should lower dust emissions. It is noted that in Yerevan air pollution levels exceed global standards by 5-7 times. Experts link this to dense development that disrupts air exchange and the presence of industry.
Air quality in Yerevan in May 2025:
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“Armenia to purchase 14 stationary air quality monitoring stations” on news.am →
The Mayor of Yerevan, Tigran Avinyan, noted that construction work and the activity of quarries in Yerevan and beyond negatively affect air quality. He emphasized that installing dust-collection nets at construction sites is a measure aimed at protecting the health of the city's residents. Avinyan called on developers to take responsibility for the state of the environment and to comply with relevant environmental requirements. Failure to follow these measures during construction leads to air pollution and a deterioration in residents' living conditions. In this regard, Avinyan proposed substantially increasing fines for violators. The main focus is on combating air pollution in the capital.
Air quality in Yerevan in May 2025:
