BS EN 16339:2025 - Ambient Air Quality Standard

Ensure the highest standards of air quality monitoring with the BS EN 16339:2025 standard. This comprehensive document provides a detailed methodology for determining the concentration of nitrogen dioxide (NO₂) in ambient air through diffusive sampling. Released on April 10, 2025, this standard is an essential resource for environmental scientists, air quality professionals, and regulatory bodies committed to maintaining and improving air quality.

Key Features

• Standard Number: BS EN 16339:2025
• Pages: 58
• Release Date: April 10, 2025
• ISBN: 978 0 539 26632 0
• Status: Standard

Comprehensive Methodology

The BS EN 16339:2025 standard outlines a precise and reliable method for measuring nitrogen dioxide levels in the air. This method utilizes diffusive sampling, a technique known for its accuracy and efficiency in capturing ambient air pollutants. By following the guidelines set forth in this standard, users can obtain consistent and reproducible results, ensuring that air quality assessments are both accurate and reliable.

Why Nitrogen Dioxide Monitoring Matters

Nitrogen dioxide is a significant air pollutant that poses health risks to humans and the environment. It is primarily produced from combustion processes, such as those occurring in vehicles and industrial facilities. Monitoring NO₂ levels is crucial for:

• Protecting public health by identifying areas with high pollution levels.
• Informing policy decisions and regulatory measures to reduce emissions.
• Assessing the effectiveness of air quality improvement initiatives.
• Contributing to global efforts in combating air pollution and climate change.

Who Should Use This Standard?

The BS EN 16339:2025 standard is designed for a wide range of users, including:

• Environmental Scientists: Gain insights into air quality trends and pollutant sources.
• Regulatory Agencies: Establish and enforce air quality standards and regulations.
• Industrial Facilities: Monitor emissions and implement control measures.
• Research Institutions: Conduct studies on air pollution and its impacts.

Benefits of Diffusive Sampling

Diffusive sampling offers several advantages over traditional air sampling methods:

• Cost-Effective: Lower operational costs due to the simplicity of the equipment and procedures.
• Non-Intrusive: Minimal disruption to the environment and surrounding activities.
• Long-Term Monitoring: Suitable for extended sampling periods, providing comprehensive data over time.
• Ease of Use: Simple deployment and retrieval, making it accessible for various users.

Stay Ahead with the Latest Standards

As air quality concerns continue to rise globally, staying informed and compliant with the latest standards is more important than ever. The BS EN 16339:2025 standard equips you with the knowledge and tools needed to effectively monitor and manage nitrogen dioxide levels in the air. By adhering to this standard, you contribute to a healthier environment and a sustainable future.

Conclusion

Invest in the BS EN 16339:2025 standard to enhance your air quality monitoring capabilities. With its detailed methodology and focus on diffusive sampling, this standard is an invaluable resource for anyone involved in air quality assessment and management. Ensure that your practices align with the highest standards and make a positive impact on the environment and public health.

BS EN 16339:2025

This standard BS EN 16339:2025 Ambient air. Method for the determination of the concentration of nitrogen dioxide by diffusive sampling is classified in these ICS categories:

• 13.040.20 Ambient atmospheres

This document specifies a method for the sampling of NO2 in ambient air using diffusive sampling followed by extraction and analysis by colourimetry or ion chromatography (IC). It can be used for the NO2 measurement in a concentration range of approximately 3 µg/m3 to 130 µg/m3 [12]. A sample is typically collected for a period of 1 to 4 weeks [14], with exposure periods depending on the design of the samplers and the concentration levels of NO2. Several sorbents can be used for trapping NO2 in ambient air using a diffusive sampler [15]. This document specifies the application of triethanolamine as the reagent. This document describes the application of a tube-type sampler (with either a cylindrical or a slightly conical tube), a badge-type sampler and a radial-type sampler. The relative expanded uncertainty of NO2 measurements performed using these tube-type diffusive samplers can potentially be lower than 25 % for individual measurements. When aggregating results to form annual average values, the relative expanded uncertainty can be further reduced to levels below 15 % due to the reduction of random effects on uncertainty [9]. NOTE NO2 passive samplers are also employed to measure NOx with the addition of an oxidant to convert ambient NO into NO2. A second NO2 sampler is also deployed without the oxidant and the concentration of NO is determined from the difference of the two samplers [16].