Hot line/Fax:0086-020-83706905     Tel:18144888416 中文 | English

New particle —— dust sensor (PM1.0 / PM2.5 / PM10)

Update: 2019-10-30 17:46 Source: LUFTMY Reading: ↻ News
 

What is particulate pollution?

Particulate pollution in the air (also known as "particulate matter") includes a mixture of solids and droplets. Some particles are emitted directly, others are formed in the atmosphere when other pollutants react. There are many sizes of particles. These particles less than 10 microns (PM10) in diameter are very small and can enter the lungs, which can cause serious health problems. 10 microns is less than the width of a hair.

The size of particles is directly related to their potential for causing health problems. Small particles smaller than 10 microns in diameter are the biggest problem because they affect the lungs and heart. Larger particles are less worrisome, though they can irritate the eyes, nose and throat.

·Fine particles (PM2.5). Particles less than 2.5 microns in diameter are called "fine" particles. Sources of fine particles include all types of combustion, as well as motor vehicles, power plants, residential wood combustion, forest fires, agricultural combustion and some industrial processes. PM2.5 contains more toxic heavy metals and harmful organic pollutants, which can directly enter the lungs. It is more likely to attach to bacteria and viruses in the environment, so particles have a greater impact on ecology and human health.

·Coarse dust particles. Particles between 2.5 and 10 microns in diameter are called "coarse particles." Sources of coarse particles include crushing or grinding operations, as well as dust generated by vehicles on the road.

How does particulate matter affect your health?

Long term exposure will lead to the decline of lung function, the development of chronic bronchitis and even premature death.

Short term exposure to particulates (hours or days) can aggravate lung disease, cause asthma attacks and acute bronchitis, and may also increase the susceptibility to respiratory infection. In patients with heart disease, short-term exposure is associated with heart attacks and arrhythmias. When particle levels rise, healthy children and adults may experience temporary mild stimulation.

For particulate matter sensors:

Using light scattering theory and particle counting technology, the new particle sensor can accurately detect the number of particles in the surrounding environment and provide useful reference data for environmental improvement. With the new dust sensor, we can get particle size and density information from 1 μ m to 10 μ m (PM1 / PM2.5 / PM10).

New particle dust sensor
New particle dust sensor

What about pollen grains?

At present, there is a new type of particle sensor, which is mainly used to detect pollen particles.These particles are in the range of 10um to 100um, so it needs supplementary technology to measure them correctly.Pollen sensor uses one light emitter and two light receivers to detect pollen by light scattering, and uses two factors of "scattering light intensity" and "polarization degree" to distinguish pollen from other particles.With this capability, the nodes will be able to detect particles in the air and distinguish cedar pollen and road dust by detecting the intensity and degree of polarization of scattered light.

LD12 laser PM2.5 dust sensor
LD12 laser PM2.5 dust sensor

LUFTMY ﹣ LD12 laser PM2.5 dust sensor is a high-precision particle concentration sensor based on Mie scattering theory. It can continuously collect and calculate the number of suspended particles with different particle sizes in the air per unit volume, i.e. particle concentration distribution, and then convert it into mass concentration, and output it in the form of general digital interface. The sensor can be embedded in various instruments or environmental improvement equipment related to the concentration of suspended particles in the air to provide timely and accurate concentration data.

Online application

Product Advantage


0086-020-83706905