Why is monitoring PM10 important?

Why is monitoring PM10 important?

The importance of monitoring PM10 is mainly reflected in the following aspects:

1. To protect human health:

PM10 particulate matter can enter the upper respiratory tract of the human body and cause damage to the respiratory system. Due to its large surface area, can adsorb a variety of harmful substances, such as heavy metals, polycyclic aromatic hydrocarbons, etc., PM10 particulate matter can penetrate deep into the human respiratory system, long-term exposure to high concentrations of PM10 environment will increase the risk of developing respiratory diseases, cardiovascular diseases and other risks.

Several studies have shown that there is a positive correlation between PM10 concentrations and the morbidity and mortality of respiratory diseases in cities. Therefore, monitoring PM10 is important for the prevention and control of related diseases.

2. Promote environmental management:

PM10 monitoring is one of the important tools for environmental management. By monitoring PM10 concentrations in different areas and at different times, the distribution of pollution sources, the degree of pollution and the trend of change can be understood, which provides an important reference for environmental management departments to formulate and adjust environmental policies.

At the same time, the monitoring results can also provide enterprises in industrial zones with directions for environmental improvement, pushing them to adopt more environmentally friendly production methods and reduce particulate emissions, thus improving the overall environmental quality.

3. Guiding urban planning:

Urban planning and industrial layout are important factors affecting PM10 pollution. By monitoring PM10, the impact of existing industrial layouts on the air environment can be assessed, providing a basis for decision-making by urban planning departments. For example, when planning new industrial zones, it is possible to avoid heavily polluted areas, or reasonably layout green belts and ventilation corridors inside industrial zones to reduce the accumulation and diffusion of particulate matter in the atmosphere.

4. Promote scientific and technological research and development:

The development of PM10 monitoring technology provides strong support for the control of particulate matter pollution. With the progress of science and technology, new types of monitoring equipment and methods continue to emerge, making PM10 monitoring more accurate and efficient. The development and application of these technologies not only improve the scientific level of environmental management, but also provide strong support for the research and development of particulate matter pollution control technology.

5. Improve public awareness of environmental protection:

The disclosure and publicity of PM10 monitoring results help to improve public awareness of environmental protection. By understanding the concentration level of PM10 and its impact on health, the public can pay more attention to environmental issues, actively participate in environmental protection actions, and jointly promote the development of environmental protection.

6. Policy formulation: Monitoring PM10 helps the government to formulate and evaluate air pollution control policies and improve the living environment of residents.

What instruments are used to measure PM10?

There are mainly the following instruments to measure PM10:

Handheld Dust Meter: such as handheld dust meter, which is able to measure the concentration of PM2.5 and PM10 at the same time, and is portable and easy to operate.

Online monitoring systems: PM10 sensors, which are specialised devices for detecting PM10 concentrations in the air and can provide real-time or timed air quality data. Used in fixed locations such as construction sites and industrial zones, the PM10 online monitoring system is capable of monitoring PM10 concentration in real time and continuously, and transmitting the data to the monitoring centre through the network.

Laser Dust Meter: A dust detector based on the principle of laser scattering, which calculates the concentration of particles by measuring the degree of scattering of particles to the laser, and has the advantages of wide measurement range, fast response speed and high accuracy.

Gravimetric measurement equipment: Although not commonly used for real-time monitoring, gravimetric measurement equipment calculates the concentration by collecting a certain volume of particulate matter in the air and weighing it, which has the advantage of accurate and reliable results.

 Particulate matter monitors: These devices can simultaneously measure the concentration of particles of different sizes such as PM10 and PM2.5.

Beta ray absorber: This device measures the concentration of particulate matter using beta rays and is suitable for high-precision monitoring.

Light Scattering Photometer: This device determines the concentration of particulate matter by measuring how well it scatters light.

How to detect PM10?

The main methods for detecting PM10 include the following:

1. Laser scattering method:

Principle: Based on the principle of particle scattering, the concentration of particles is calculated by measuring the degree of scattering of particles to laser light.

Advantages: wide measuring range, fast response speed, high accuracy.

2. Weight method:

Principle: Calculate the concentration by collecting particles in a certain volume of air and weighing them.

Advantage: accurate and reliable results; disadvantage is that it requires the use of weighers and other equipment, and the operation is relatively complex.

3. Electrochemical method:

Principle: Detection method based on the reaction between particles and electrodes, calculating the concentration of particles by measuring the electrochemical reaction between particles and electrodes.

Advantage: no chemical reagents, simple operation; disadvantage is that the measurement range of the concentration of particles has some limitations.

4. Optical absorption method:

Principle: Detection method based on the degree of absorption of particles to specific wavelengths of light, by measuring the degree of absorption of particles to specific wavelengths of light to calculate the concentration of particles.

Advantage: Wide measurement range of particulate concentration, fast response speed; disadvantage is that it requires the use of optical components, which is somewhat polluting to the environment.

5. Gas chromatography:

Principle: detects PM10 by separating airborne particles from the gas chromatography column and measuring their concentration.

Advantage: high measurement accuracy and fast response speed; disadvantage is that it requires the use of gas chromatography columns and detectors and other equipment, the cost is high.

In the actual application, you can choose the appropriate detection method and instrument for PM10 monitoring according to the specific needs and scenarios.

Summary:

Monitoring PM10 is essential for protecting public health and improving environmental quality. Instruments for measuring PM10 include PM10 sensors, particulate matter monitors, beta ray absorbers and light scattering photometers. The process of detecting PM10 involves sampling, measurement, data analysis and instrument calibration maintenance. Through these steps, we can effectively monitor and control PM10 pollution, supporting the creation of a healthier living environment.

PM2.5, PM10, Integrated Sensor Data Sheet

NBL-W-PM25-PM10-Integrated-sensors-Manual.pdf