Article Keywords: Guangdong dust online monitoring site dust detector noise dust monitoring system construction site dust noise detection dust detection system dust real-time monitoring system dust monitor dust monitoring system site dust online monitoring dust detector dust over-standard warning instrument dust noise meter dust monitoring equipment Manufacturers road dust meter road dust online monitor dust video surveillance system site dust monitoring system dust sensor dust concentration sensor dust online sensor 24 hours dust online monitoring system networked dust monitoring system dust online monitoring program site dust instrument road dust monitoring system
What is dust? Dust is an open source of pollution caused by dust on the ground in the wind, man-made and other flying, and is an important part of the total suspended particulate matter in the ambient air.
After rain, the use of rainwater resources to immediately clean the muddy water accumulated on the road is the most effective way to avoid the repeated formation of dust after the road is dry. At the same time, it can avoid the formation of dust on sunny days, and it can also greatly save clean water. the measures taken.
In the design and construction of hardened roads, pay attention to the strict use of reasonable road surface slope and road edge drainage design, using natural precipitation runoff to clean the road surface dust, can reduce the dust pollution can do more with less, is an important long-term pollution control Effective measures.
(1) Ways of dust entering the human body
The human body has a defensive function for dust entering the respiratory tract, and most of the dust particles can be removed by various means. Its role is roughly divided into three types. That is, dust filter function, conveyor function and swallowing function. These three functions are related to each other and cannot be separated.
When the dust particles enter the respiratory tract, the dust particles larger than 10 μm are deposited in the nasal cavity and upper respiratory tract due to the physiological anatomy of the upper respiratory tract, the change of the airflow direction, and the secretion of mucus. According to research, the efficiency of nasal filter dust is about 30% to 50% of the total amount of dust in the inhalation. Due to the effect of dust on the upper respiratory tract mucosa, the nasal mucosa is hyperactive, the capillaries are dilated, and a large amount of mucus is secreted, thereby directly retaining more dust. This is a protective response of the body, but it is already hypertrophic rhinitis in pathology. After the mucosal cells shrink due to insufficient nutrient supply and gradually form atrophic rhinitis, the dust filter can be significantly reduced. Due to similar changes, it can also cause pharyngitis, laryngitis, bronchitis and bronchitis.
In the lower respiratory tract, dust deposits can adhere to the bronchial tubes and their branches due to the progressive branching of the bronchi, slowing of the airflow, and changes in direction. This part of the dust particle size is about 2-10 μm in diameter. Most of the dust particles are transported through the ciliary movement of the mucosal epithelium with the mucus moving outward and excreted through cough reflexes.
The dust entering the alveoli is partially expelled with exhalation; the other part is swallowed by phagocytic cells and transferred to the mucosal surface of the respiratory bronchioles with ciliated epithelium through a layer of liquid tension on the surface of the alveolar epithelium. Go out; some of the dust is swallowed by phagocytic cells, enter the lymphatics through the alveolar space, and flow into the hilum. Most of the dust particles with a diameter of less than 3 μm are removed by phagocytosis.
It can be seen that the human body can remove most of the dust particles entering the lungs through various kinds of removal functions, and the dust entering and remaining in the hilar lymph nodes is only a small part of the inhalation dust. Although the human body has good defensive functions, under certain conditions, if dustproof measures are not good, long-term inhalation of high-concentration dust may still have adverse effects.
(2) The harm of dust to the human body
The most serious dust hazard is the direct introduction of silicosis. In addition, prolonged exposure to productive dust can cause other diseases. For example, dust such as marijuana, cotton, etc. can cause allergic diseases such as bronchial asthma, asthmatic bronchitis, eczema and migraine. Broken cloth scraps and some crop dusts may become carriers of pathogenic microorganisms. For example, dust with filamentous fungi and genus of genus can enter the lungs and cause pulmonary fungal diseases. Asbestos dust can cause mesothelioma in addition to asbestosis. Frequent exposure to productive dust, but also skin, ear and eye disorders. For example, dust blocking the sebaceous glands can dry the skin, and is susceptible to mechanical irritation and secondary infections, such as acne, folliculitis, and pyoderma. Dust mixed in the ear canal endothelium and earwax can promote the formation of ear wax embolism. Long-term repetitive effects of metal and abrasive dust can cause corneal damage, resulting in loss of corneal sensation and corneal opacity.
1. Method of dust and dust reduction1. Sprinkle water on construction sites and plant trees on both sides of the road, all of which have a certain effect on preventing dust damage.
2. Governing all kinds of super-high soil: If the soil near the edge of flower beds, green spaces and tree ponds exceeds the road surface, shoulders and stones, it will form a green super-high soil, it is difficult to store water and grow vegetation, and the soil will rain. It was washed up on the road surface, muddy everywhere, and it formed dust after the weather was fine and dry. This situation is common in many towns and villages across the country and is the main source of local dust. In the design and construction of hardened roads, pay attention to the strict use of reasonable road surface slope and road edge drainage design, using natural precipitation runoff to clean the road surface dust, can reduce the dust pollution can do more with less, is an important long-term pollution control Effective measures.
3. Pay attention to increase the roughness of the wall surface: The wall surface of the newly built three-dimensional road section is mainly made of smooth cement surface. In fact, the wall surface of the overpass bridge is preferably rough, which will help reduce dust.
4. Pay attention to reducing the dust on the roof of the city: There are many problems with dust and even waste accumulation on the flat roof of the urban building. Cleaning the roof and laying a layer of gravel on the roof will have a good vacuum.
5. Pay attention to the cover of the exposed trees in the roadside.
6. The site floor should be hardened to avoid hardening and should be soft covered with gravel.
7. Note that the city is not green.
8. Pay attention to the use of self-help greening power of community residents to reduce dust in cities.
2. Dust noise monitoring product application solution
Urban dust sources are characterized by openness, multi-source, extensiveness, and randomness of emissions. Introducing the dust online monitoring system, law enforcement agencies can trace the source of dust pollution, conduct preliminary quantitative analysis of dust pollution levels, remotely monitor and capture evidence for illegal dust pollution, and provide more scientific technical support for effectively controlling urban dust pollution. .
The system integrates advanced technologies such as real-time monitoring of particulate noise, meteorological monitoring, Internet of Things and cloud computing. It can accurately locate the source of dust pollution and can monitor the concentration of various particulate matter (including TSP, PM10 and PM2.5) online. With high concentration alarm and automatic capture and evidence collection, it has a significant effect on online monitoring of dust pollution from unorganized pollution sources.
Established in 2016, Biye Qianli is a national high-tech enterprise specializing in air pollution and atmospheric monitoring. It develops, produces and sells dust pollution monitoring systems, indoor intelligent environmental systems, dust sensors, weather stations, and negative oxygen ion monitoring stations. ,, the automatic monitoring station for noise, the air quality inspection system is the focus of research and development enterprises. With its own brand “Biye Qianliâ€, Biye Qianli has established long-term and extensive cooperation with well-known domestic universities, industry associations and cross-border well-known enterprises in the sustainable development, and conducts regular exchanges and studies. Headquartered in Shenzhen, Biye Qianli integrates air detection, Internet of Things, big data and cloud computing, artificial intelligence analysis, communication technology, WeChat applet, large screen display, and client-related technologies to form a solution for smart environmental monitoring.
Based on the principle of “improving the quality of urban air, and doing what it takes to do with the heartâ€, Biye Qianli people responded to the concept of “Internet + environmental protectionâ€, took the smart city as the entry point, and deeply cultivated the field of air pollution monitoring, making it practical for all walks of life. Provide 24/7 online monitoring and monitoring solutions to provide scientific and real data decision-making basis for the government to control air pollution, and facilitate the people to actively participate in and supervise environmental policies and regulations.
Power X (Qingdao) Energy Technology Co., Ltd. , https://www.solarpowerxx.com