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MEASURING POINTS

Current Air Quality PM2.5

What is PM2.5

Instructions for Online Measurements

Measuring Points

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2025.06.11.

DUST CONCENTRATION AND METEOROLOGICAL BACKGROUND

The Green Sentinel senors reported a significant increase in PM10 and PM2.5 particulate matter concentrations on 11 June 2025 between 02:00 and 04:00 am, due to adverse meteorological effects.

WEATHER

Sunrise: 4:35

10:03

Sunset: 20:34

°C

Source HungaroMet Nonprofit Zrt.

Detailed Weather

Wind Direction

NEWS AND UPDATES

2025.06.11.

DUST CONCENTRATION AND METEOROLOGICAL BACKGROUND

2025.06.05.

2025.05.14.

The Green Sentinel is on the move

The Environmental Control System, one of the priority measures of Debrecen's Environmental Strategy, the Green Codex, has been implemented, and the details of its operation were presented at a scientific conference by the university researchers and experts involved in its development. This marked the launch of the Green Sentinel, a short tutorial video of which can be found on its website here.

2025.01.30.

GREEN SENTINEL SITE VISIT

The Environmental Monitoring System monitoring station network has been completed and a public site visit was held on 30 January 2025. The press tour, which was attended by the Mayor, included a presentation to the press of the first completed Józsa Klastrompart complex monitoring station. The programme then continued at the HUN-REN Institute for Nuclear Research, where the instruments, equipment and test methods of the air working group were presented.

2025.01.30.

GREEN SENTINEL

One of the 50 measures set out in Debrecen's environmental programme, the Green Code, is the establishment of an Environmental Audit Scheme. This Green Sentinel is the only automated information and data collection, analysis and monitoring instrumentation system in the country, designed by professionals, operated and monitored 24 hours a day, monitoring the state of our environment through continuous sampling and analysis.

2024.11.11.

CONSTRUCTION IN PROGRESS

The construction of the metering stations is progressing well.On 11 November 2024, the Board of Directors was informed about the progress of the works in the immediate vicinity of the Southern Economic Belt. The construction of the metering stations has reached the finishing line and the infrastructures are ready to receive the equipment. The progress of the works was checked by visiting a complex metering station and a surface water metering station.

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GLOSSARY

ENVIRONMENTAL ELEMENT

Land, air, water, wildlife and the man-made (built) environment and their components.

HEALTH LIMIT VALUE

The maximum permissible concentration of a substance (e.g. pollutant, chemical, noise) in the environment or a given medium (e.g. air, water, food, workplace environment) that does not cause long-term health effects to humans. Hungarian legislation sets both short-term (hourly or daily) and long-term (annual) air pollution levels. Long-term levels are more stringent than short-term levels because long-term exposure to pollutants can cause serious health effects.

INFORMATION THRESHOLD

The concentration of pollutants above which the local authority is obliged to inform the public of the current air quality status. This value is lower than the alert threshold and does not necessarily justify more stringent action, but it does provide a warning that air quality is no longer ideal. The information and alert thresholds for nitrogen dioxide, particulate matter, sulphur dioxide, carbon monoxide and ozone, which form the basis for the different stages and measures of the smog alert, are set out in Annex 3 to VM Decree No 4/2011 (I. 14.) on air pollution level limits and emission limit values for stationary sources of air pollution (hereinafter: VM Decree). The Mayor is authorised to order and lift the stages of the smog alert on the basis of the Smog Alert Plan. The requirements for the preparation of the smog alert plan are set out in Government Decree 306/2010 (XII. 23.) on air protection. The National Air Pollution Monitoring Network is responsible for monitoring air pollution levels and compliance with air pollution limit values in Hungary in order to assess national air pollution.

All concepts

My Green Sentinel

SCIENCE IS AT YOUR SERVICE!

Scientists and professors from the University of Debrecen and the City of Debrecen have jointly created the Green Sentinel, which monitors the environmental condition of your living environment.

The Green Sentinel, or Environmental Control System, consists of 16 complex monitoring stations and 2 surface water monitoring points, selected by experts to cover the whole city, including residential areas, forested areas and industrial sites.

Select the closest monitoring point to you on the map to find out about the status and trends in air, water, soil, noise and biodiversity!

Green Sentinel is a complex monitoring system that provides you with data 24 hours a day, 7 days a week. Designed by experts, it is a continuous information and data collection, analysis and monitoring system based on objective measurements, using instrumental observation and continuous sampling to monitor changes and conditions in air, surface and groundwater, soil and wildlife.

The development, safety and well-being of Debrecen is our common cause, so we want you to be part of the Green Sentinel! Join our Citizen Science programmes to learn more about how the system works, how our scientists research, measure results and what and how it affects your environment.

Join us, let's do something together for Debrecen!

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OUR PARTNERS

CITY OF
DEBRECEN

UNIVERSITY OF
DEBRECEN

GREEN SENTINELDebrecen Environmental Control System

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