The fine particles mixed in the air will bring serious health problems to people. The World Health Organization (WHO) said: “By improving air quality, it can effectively reduce stroke, heart disease, lung cancer, acute and chronic respiratory diseases, etc.” . No matter how big the particle size is, it is harmful to people, but PM2.5 is the more serious one. These tiny PM2.5 particles can easily enter deep into the lungs and cause serious health problems, so daily We must be vigilant in life.
With the development of the economy, the air quality is declining day by day. The air in the haze weather contains a large number of polluting particles and microorganisms, including the well-known PM2.5 (also known as “fine particles”); Air pollution is a serious threat to human health. How to improve the pollution status and lifestyle has become a problem that people are very concerned about.
Source of PM2.5 (fine particulate matter)
Source of PM2.5 (fine particulate matter)
PM2.5 refers to particulate matter with an aerodynamic equivalent diameter of less than or equal to 2.5 microns. It can be suspended in the air for a long time. The higher its concentration in the air, the more serious the air pollution is. PM2.5 is rich in a large amount of toxic and harmful substances, and it has a long residence time in the atmosphere and a long transportation distance. Therefore, it has a greater impact on human health and the quality of the atmospheric environment. The sources of PM2.5 are mainly natural sources and man-made sources. There are two sources, the latter is more harmful.
Anthropogenic sources include stationary and mobile sources. Stationary sources include various fuel combustion sources, such as power generation, metallurgy, petroleum, chemistry, textile printing and dyeing and other industrial processes, heating, and cooking processes. The flow source is mainly the exhaust gas emitted into the atmosphere when various vehicles use fuel during operation.
Applications of Air Quality Sensors
Applications of Air Quality Sensors
SenTec Air Quality Sensors are able to monitor PM2.5/PM10 in the environment.
The air quality sensor SEM224 is an industrial-grade general-purpose particle concentration transmitter. It adopts the principle of laser scattering measurement, and uses the dual-frequency data acquisition technology for screening to obtain the number of particles of equivalent particle size per unit volume. The unique scientific algorithm calculates the particle mass concentration of the equivalent particle size in the unit volume, and outputs the data through the ModBus-RTU protocol through the 485 interface. It can be used in outdoor weather stations, dust monitoring, libraries, archives, industrial plants and other places that require PM2.5 or PM10 concentration monitoring.
This high-precision sensor can reach 1ug/m3 and supports simultaneous output of PM2.5 and PM10. The equipment adopts advanced laser anti-attenuation technology to ensure long-term stability of the equipment. The measurement range of 0-1000ug/m3, dual-frequency data acquisition and automatic calibration technology , the consistency can reach +10%.
Upload data to local monitoring platform
The local monitoring platform automatically receives and stores monitoring data through the RS-485 line. Users can view real-time data on the host side, and can also export, download, and print historical data; in order to prevent environmental pollution caused by industrial emissions, we can first pass the local monitoring platform. Remotely set the upper and lower limit values of each element of the environment. Once a certain factor is limited, the system will send alarm information to the administrator in the form of platform alarm, SMS alarm, and email alarm. In order to facilitate account management, the cloud platform also supports multi-level permission access. One account can add 8 administrators, so the platform can give alarm information to 8 people at the same time, which is conducive to improving the efficiency of emergency management.
Air Quality Sensor in Environmental Monitoring
Louver box type: anti-ultraviolet, anti-rain and snow, anti-aging, suitable for outdoor weather monitoring.
Wall-mounted king-shaped shell type: IP65 protection grade, unique waterproof treatment, suitable for various industrial occasions.
