On Sunday, January 25, 2026, the RIVM measured smog caused by fine particulate matter in the northern half of the Netherlands. This mainly concerns the area above the Amsterdam – Arnhem line, but it likely also applies to the central part of the country. The air quality is “insufficient” and possibly locally “poor.” These high concentrations may cause health complaints.

Health complaints and advice

A high concentration of fine particulate matter in the air can lead to a decrease in lung function. Especially people with lung diseases, such as asthma, chronic bronchitis or emphysema, and people with cardiovascular diseases may experience problems.

They can prevent or reduce complaints by not exerting themselves too much. In some cases, medication can be adjusted in consultation with a doctor.

Forecast

Since Saturday, the east wind has brought extra fine particulate matter from the European mainland, leading to an increase in fine particulate concentrations. This was first seen in Groningen and Drenthe and is slowly spreading to the south and west of the country. The calm winter weather causes little dispersion, so concentrations remain high throughout the day. The RIVM does not rule out that the central and southern halves of the Netherlands will also experience higher concentrations today. From around midnight, the wind will first turn to the northeast and later to the north, and cleaner air is expected to arrive.

Check the air quality

At Luchtmeetnet.nl (external link), the air quality in the Netherlands can be seen. Anyone can check the current air quality at their location 24 hours a day. The site collects measurement data from various government agencies. The website is an initiative of the RIVM, the GGD Municipal Health Service (Municipal Health Service) Amsterdam, DCMR Environmental Service Rijnmond (Environmental Service Rijnmond) Environmental Service Rijnmond, province of Limburg, the Environmental Service Midden- and West-Brabant and the Environmental Service Region Arnhem.

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