Is there a guideline for air quality?

Clean air is a fundamental prerequisite for health, well-being, and sustainable economic activity. At the same time, however, the question arises how it is determined which levels of air pollutants are still acceptable – and from which point onward health is at risk.

Especially against the backdrop of increasing industrial processes and urban pollution, clearly defined limit values play a crucial role. In Europe, these regulations form the framework for uniform public health protection.

European Regulations on Air Quality

The EU Air Quality Directive 2024/2881

With Directive (EU) 2024/2881, the European Union has established binding limit values for air quality. This directive was adopted by the European Parliament on 23 October 2024 and replaces earlier regulations with updated and more stringent standards.

In doing so, the EU creates a uniform basis for limiting and harmonising air pollutant exposure across Europe.

Objectives of the Directive

The directive pursues several key objectives that are closely interconnected:

• Ensuring sustainable and environmentally sound development in Europe

• Reducing concentrations of pollutants in the air we breathe

• Protecting the population from health damage caused by toxic substances

Thus, the focus is not only on environmental protection but, above all, on long-term preventive health care.

Defined Limit Values for Air Pollutants

To achieve these objectives, the directive defines binding limit values for various air pollutants. These include, among others:

• Sulphur dioxide (SO₂)

• Nitrogen dioxide (NO₂) and nitrogen oxides (NOₓ)

• Particulate matter (PM2.5 and PM10)

• Lead (Pb)

Particular attention is paid to anthropogenic particulate matter, i.e. particles generated by human activities. Compared to natural dust, it is considered significantly more harmful to health and must therefore not exceed defined limit values.

Protection of Particularly Vulnerable Groups

In addition, the directive takes into account particularly vulnerable groups. For children, older people, or hospital patients, additional and more stringent requirements may be defined in order to protect health as effectively as possible.

Air Quality in the Workplace: National Regulations

Supplementary Regulations in Germany

In addition to European requirements, there are binding national regulations in Germany that specifically govern the protection of employees in the workplace. These national provisions specify concrete requirements for occupational environments and are mandatory for employers.

These include, among others:

• Workplaces Ordinance (ArbStättV): Protection of employees against health hazards

• ASR A3.6 “Ventilation”: Definition of requirements for ventilation and air quality in workspaces

• Hazardous Substances Ordinance (GefStoffV) in conjunction with TRGS 900: Binding occupational exposure limits for hazardous substances

• Organisational and technical measures: Regular ventilation, use of ventilation systems and air filters, and the implementation of risk assessments

This ensures that air quality is not only monitored and improved in public spaces, but also directly at the workplace.

Overview of Key Regulations

Conclusion: Air Quality Is Clearly Regulated

In summary, air quality is strictly regulated and monitored at both European and national levels. While the EU directive defines the overarching framework, national occupational safety regulations ensure that employees are effectively protected from harmful exposure in the workplace.

For companies, this means: Proactive measures such as the use of extraction and filtration systems are not only sensible, but in many cases legally required. In this way, companies protect their employees and the environment while simultaneously complying with applicable regulations.