Low Noise PM2.5 Air Quality Detector Smart Air Quality Monitor With LED Display

Automatic Dynamic Air detectors Intelligent Air quality detector PM 2.5 indicator

Pollutants

An air pollutant is a substance in the air that can have adverse effects on humans and the ecosystem. The substance can be solid particles, liquid droplets, or gases. A pollutant can be of natural origin or man-made. Pollutants are classified as primary or secondary. Primary pollutants are usually produced from a process, such as ash from a volcanic eruption. Other examples include carbon monoxide gas from motor vehicle exhaust, or the sulfur dioxide released from factories. Secondary pollutants are not emitted directly. Rather, they form in the air when primary pollutants react or interact. Ground level ozone is a prominent example of a secondary pollutant. Some pollutants may be both primary and secondary: they are both emitted directly and formed from other primary pollutants.

Before flue-gas desulfurization was installed, the emissions from this power plant in New Mexico contained excessive amounts of sulfur dioxide.

Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ground level ozone concentration, (6) increased levels of nitrogen oxides.

Thermal oxidizers are air pollution abatement options for hazardous air pollutants (HAPs), volatile organic compounds (VOCs), and odorous emissions.

Substances emitted into the atmosphere by human activity include:

• Carbon dioxide (CO₂) - Because of its role as a greenhouse gas it has been described as "the leading pollutant"^[5] and "the worst climate pollution".^[6] Carbon dioxide is a natural component of the atmosphere, essential for plant life and given off by the human respiratory system.^[7] This question of terminology has practical effects, for example as determining whether the U.S. Clean Air Act is deemed to regulate CO₂ emissions.^[8] CO₂ currently forms about 405 parts per million (ppm) of earth's atmosphere, compared to about 280 ppm in pre-industrial times,^[9] and billions of metric tons of CO₂ are emitted annually by burning of fossil fuels.^[10] CO₂ increase in earth's atmosphere has been accelerating.^[11]
• Sulfur oxides (SO_x) - particularly sulfur dioxide, a chemical compound with the formula SO₂. SO₂ is produced by volcanoes and in various industrial processes. Coal and petroleum often contain sulfur compounds, and their combustion generates sulfur dioxide. Further oxidation of SO₂, usually in the presence of a catalyst such as NO₂, forms H₂SO₄, and thus acid rain.[2] This is one of the causes for concern over the environmental impact of the use of these fuels as power sources.
• Nitrogen oxides (NO_x) - Nitrogen oxides, particularly nitrogen dioxide, are expelled from high temperature combustion, and are also produced during thunderstorms by electric discharge. They can be seen as a brown haze dome above or a plume downwind of cities. Nitrogen dioxide is a chemical compound with the formula NO₂. It is one of several nitrogen oxides. One of the most prominent air pollutants, this reddish-brown toxic gas has a characteristic sharp, biting odor.
• Carbon monoxide (CO) - CO is a colorless, odorless, toxic yet non-irritating gas. It is a product of incomplete combustion of fuel such as natural gas, coal or wood. Vehicular exhaust is a major source of carbon monoxide.
• Volatile organic compounds (VOC) - VOCs are a well-known outdoor air pollutant. They are categorized as either methane (CH₄) or non-methane (NMVOCs). Methane is an extremely efficient greenhouse gas which contributes to enhanced global warming. Other hydrocarbon VOCs are also significant greenhouse gases because of their role in creating ozone and prolonging the life of methane in the atmosphere. This effect varies depending on local air quality. The aromatic NMVOCs benzene, toluene and xylene are suspected carcinogens and may lead to leukemia with prolonged exposure. 1,3-butadiene is another dangerous compound often associated with industrial use.
• Particulates, alternatively referred to as particulate matter (PM), atmospheric particulate matter, or fine particles, are tiny particles of solid or liquid suspended in a gas. In contrast, aerosol refers to combined particles and gas. Some particulates occur naturally, originating from volcanoes, dust storms, forest and grassland fires, living vegetation, and sea spray. Human activities, such as the burning of fossil fuels in vehicles, power plants and various industrial processes also generate significant amounts of aerosols. Averaged worldwide, anthropogenic aerosols—those made by human activities—currently account for approximately 10 percent of our atmosphere. Increased levels of fine particles in the air are linked to health hazards such as heart disease,^[12][13] altered lung function and lung cancer.
• Persistent free radicals connected to airborne fine particles are linked to cardiopulmonary disease.^[14][15]
• Toxic metals, such as lead and mercury, especially their compounds.
• Chlorofluorocarbons (CFCs) - harmful to the ozone layer; emitted from products are currently banned from use. These are gases which are released from air conditioners, refrigerators, aerosol sprays, etc. On release into the air, CFCs rise to the stratosphere. Here they come in contact with other gases and damage the ozone layer. This allows harmful ultraviolet rays to reach the earth's surface. This can lead to skin cancer, eye disease and can even cause damage to plants.
• Ammonia (NH₃) - emitted from agricultural processes. Ammonia is a compound with the formula NH₃. It is normally encountered as a gas with a characteristic pungent odor. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to foodstuffs and fertilizers. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceuticals. Although in wide use, ammonia is both caustic and hazardous. In the atmosphere, ammonia reacts with oxides of nitrogen and sulfur to form secondary particles.^[16]

Low Noise Smart Particulate air quality Monitor PM2.5 Detector with LED Display

Low noise Intelligent Dynamic air quality monitor PM2.5 detector for indoor air control

Technical Parameters

Low Noise Smart Particulate air quality Monitor PM2.5 Detector with LED Display

Ucloud® Low noise Intelligent Dynamic air quality monitor PM2.5 detector for indoor air control

Automatic Dynamic Air detectors Intelligent Air quality detector PM 2.5 indicator

Main Functions:

• Detection of indoor humidity and temperature
• Detection of carbon monoxide(CO) concentration
• Detection of volatile organic gases
• Detection of Customer-defined gas molecular data
• Send the detection data to the intelligent control panel
• Send detection data to the detection cloud platform
• Send the detection data to the dynamic sterilizer

Automatic Dynamic Air detectors Intelligent Air quality detector PM 2.5 indicator

Low Noise Smart Particulate air quality Monitor PM2.5 Detector with LED Display

Detectable Items:

• 2.5 micron suspended particles(PM 22.5)
• Volatile organic matter
• Carbon dioxide
• Carbon monoxide
• Ammonia
• Hydrogen Sulfide
• Sulfur dioxide
• Oxygen
• Liquefied gas
• City gas

High sensitivity Independent CO Carbon Monoxide Detector with Dynamic disinfection Technology





Main Applications: