User contributions for USEV

A user with 167 edits. Account created on 11 July 2023.
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15 September 2023

28 July 2023

  • 10:2210:22, 28 July 2023 diff hist −11,393 Category:Indoor air pollutantsBlanked the page Tags: Blanking Manual revert
  • 10:2110:21, 28 July 2023 diff hist +1,160 N O3Created page with "=== '''Definition''' === Ozone (O3) is a secondary pollutant formed from a complex series of chemical reactions of primary precursor pollutants, mainly NOx and VOCs, in the presence of solar radiation. Ozone has a positive effect in the stratosphere, where it forms the so-called ozone layer, as it protects against ultraviolet radiation. However, in the troposphere it becomes a pollutant that acts as a powerful and aggressive oxidising agent. === '''Predominant sources..." current
  • 10:2010:20, 28 July 2023 diff hist +1,299 N RadonCreated page with "=== '''Definition''' === Radon gas is a major source of naturally occurring ionising radiation and a major contributor to the ionising radiation doses received by the population. Prolonged exposure to radon may increase the risk of lung cancer. The unit of measurement is the Becquerel per cubic metre (Bq-m-3). === '''Predominant sources of emissions''' === It is produced by the natural radioactive decay of uranium in soils and rocks, which penetrates into interior spa..." current
  • 10:1910:19, 28 July 2023 diff hist +1,177 N NO2Created page with "There are seven nitrogen oxides that can be found in ambient air. However, nitric oxide (NO) and nitrogen dioxide (NO2) are the two main nitrogen oxides associated with combustion sources. === '''Definition''' === Nitrogen dioxide (NO2) is a reactive gas that is formed mainly by the oxidation of NO. It is involved in harmful reactions such as those leading to tropospheric ozone or nitric acid, and is therefore a pollutant in its own right as well as a precursor to othe..." current
  • 10:1810:18, 28 July 2023 diff hist +1,160 N COCreated page with "=== '''Definition''' === Carbon monoxide (CO) is a colourless, odourless gas emitted as a result of incomplete combustion of fossil fuels and biofuels. === '''Predominant sources of emissions''' === In general, any fuel containing carbon (gas, oil, coal, wood...) that is burned without sufficient oxygen to form CO2 is a potential source of CO. Carbon monoxide is produced indoors by combustion sources (cooking and heating) and is also introduced through infiltration of..." current
  • 10:1610:16, 28 July 2023 diff hist +591 N PM0.1Created page with "=== '''Definition''' === The so-called ultrafine particles (UFP), which are smaller than 0.1 micrometre, are considered to be among the most dangerous pollutants, as due to their small size they can even reach the bloodstream and thus affect various organs, as well as the central nervous system and the reproductive system, among others. === '''Legislation and intervals''' === The legislated particle sizes are PM2.5 and PM10; although UFPs are among the most dangerous..." current
  • 10:1610:16, 28 July 2023 diff hist +779 N PM2.5Created page with "=== '''Definition''' === PM2.5 particles are those with diameters of less than 2.5 micrometres*. They are therefore a subset of PM10 particles and more harmful than PM10, as they can reach further into the lungs and can be more toxic. PM2.5 particles are usually composed mainly of secondary particles formed in the atmosphere from some of the gaseous precursors. === '''Legislation and intervals''' === According to World Health Organization: The limit value for PM2.5 i..." current
  • 10:1410:14, 28 July 2023 diff hist +36 PM10No edit summary
  • 10:1310:13, 28 July 2023 diff hist +749 N PM10Created page with "=== '''Definition''' === PM10 particles are those with diameters of less than 10 micrometres. PM10 is largely composed of primary particles emitted directly into the atmosphere by both natural phenomena and the human activities, such as combustion processes in kitchens, use of wood-burning cookers, tobacco, electronic cigarettes, etc. === '''Legislation and intervals''' === According to World Health Organization: The limit value for PM10 is 45 μg/m3 for 24 hours and..."
  • 10:1210:12, 28 July 2023 diff hist +701 N NaphthaleneCreated page with "=== '''Definition''' === Naphthalene occurs naturally in fossil fuels such as oil and coal, and is produced when burning wood or tobacco. It is also the most volatile polycyclic aromatic hydrocarbon (PAH) with a gas phase share of 90-100%. === '''Predominant sources of emissions''' === Limited information is available on indoor air concentrations of naphthalene and exposure levels. Common indoor sources of naphthalene are unvented paraffin stoves and tobacco smoke. Us..." current
  • 10:1110:11, 28 July 2023 diff hist +1,445 N Polycyclic aromatic hydrocarbonsCreated page with "=== '''Definition''' === Polycyclic aromatic hydrocarbons (PAHs) are widespread environmental pollutants formed in the combustion process of carbonaceous materials at high temperature. They are a large group of organic compounds with two or more fused aromatic rings. Low molecular weight PAHs (two and three rings) are found in the atmosphere predominantly in the vapour phase, while multi-ring PAHs (five or more rings) are largely particle bound and are considered very d..." current
  • 10:0910:09, 28 July 2023 diff hist +5 TetrachloroethyleneNo edit summary current
  • 10:0810:08, 28 July 2023 diff hist +1,015 N TetrachloroethyleneCreated page with "=== '''Definition''' === Tetrachloroethylene (PCE) is a colourless, readily volatile liquid with an ether-like odour. The main industrial applications of PCE are as a dry-cleaning agent, degreaser for fabricated metal parts, and industrial solvent. Other applications include textile finishing, production of printing inks, and formulation of adhesives. === '''Predominant sources of emissions''' === There are no known natural sources of PCE. Concerning indoor sources:..."
  • 10:0710:07, 28 July 2023 diff hist +1,327 N TrichloroethyleneCreated page with "=== '''Definition''' === Trichloroethylene (TCE) is a widely used industrial solvent. It is a volatile, colourless liquid with a sweet odour (similar to chloroform). It is mainly used for steam degreasing and cold cleaning of manufactured metal parts (80-95% of consumption). Other applications include industrial dry cleaning, printing, printing ink production, extraction processes, paint production and textile printing. === '''Predominant sources of emissions''' === C..." current
  • 10:0510:05, 28 July 2023 diff hist +937 N PCE-VOC 1Created page with "=== ''' Short Description ''' === The meter is used for the measurement of total volatile organic compounds and formaldehyde (HCHO). The formaldehyde meter is characterised by its large display and simple operation. === ''' Parameters (accuracy)''' === Formaldehyde (HCHO): 0-5.00 mg·m-3 / ppm; ±5 % VOCs: 0-9.99 mg·m-3/ ppm; ±5 % === ''' Requirements''' === In addition to the value on the display, an alarm can be detected optically, as the display lights up red..." current
  • 10:0310:03, 28 July 2023 diff hist +708 N Extech CO1OCreated page with "=== ''' Short Description ''' === Carbon dioxide (CO) meter. CO10 emits an alarm at 35 ppm and above which increases in speed at higher CO concentrations. Above 200 ppm, the alarm will sound continuously. Other features include a backlit display for use in low-light conditions, maximum hold, data hold and auto power off. === ''' Parameters (accuracy)''' === Carbon monoxide (CO): 0-1000 ppm; ±5 % or ±10 ppm === ''' Requirements''' === This device is equipped with a..." current
  • 10:0010:00, 28 July 2023 diff hist −686 URADMonitor MODEL A3No edit summary current
  • 09:4909:49, 28 July 2023 diff hist +23 URADMonitor MODEL A3No edit summary
  • 09:4809:48, 28 July 2023 diff hist +2,238 N URADMonitor MODEL A3Created page with "=== ''' Short Description ''' === uRADMonitor A3 is an automated, fixed monitoring station that monitors a total of 8 important air quality parameters. It comes in a compact and robust aluminium housing with wall mounting bracket. The data is exported to the uRADMonitor network and can be accessed in real time through the application or directly through the local network. === ''' Parameters (accuracy)''' === Sensor Parameters..."
  • 09:3909:39, 28 July 2023 diff hist +937 N FoobotCreated page with "=== ''' Short Description ''' === Foobot is an indoor air quality monitor. It can detect contaminants present in an environment and make them visible through its LED screen. === ''' Parameters (accuracy)''' === PM: 0 to 1300 μg·m-3; ±4µg or ±20% VOC: ±10% Temperature: 15 - 45°C; ±1°C Relative humidity: 30 - 85%; ±5% === ''' Requirements''' === WIFI connection required. Stores data every 5 minutes. Measurements are instantaneous on demand. Linked d..." current
  • 09:3709:37, 28 July 2023 diff hist +1,469 N Awair OmniCreated page with "=== ''' Short Description ''' === Awair Omni sensors monitor seven key factors that influence the quality of indoor spaces: VOCs, PM, CO2, humidity, temperature, light and noise. The levels of the first five factors are represented on the device as five sequential dots. A single dot represents healthy levels of air quality for the factor in question, while a column of two or more dots indicates that the factor is reaching unhealthy levels. === ''' Parameters (accuracy)..." current
  • 09:3509:35, 28 July 2023 diff hist +945 N CO2Panel PICreated page with "=== ''' Short Description ''' === CO2Panel PI is a CO2 meter designed specifically for monitoring in schools, bars and offices, due to its robustness, simplicity of use and low cost. It uses a high precision NDIR sensor (Winsen MH-Z19). Indicates by means of a light whether the CO2 level is safe: -Green: good air quality. CO2 concentration is low. -Yellow: slight CO2 concentration. -Red: high CO2 concentration. === ''' Parameters (accuracy)''' === CO2: 0 -5000 ppm..." current
  • 09:3409:34, 28 July 2023 diff hist +1,625 N Wöhler CDL 210Created page with "=== ''' Short Description ''' === The Wöhler CDL210 allows continuous logging and subsequent downloading of data to PC through the NDIR sensor. An audible alarm is activated when the preset limit value of the CO2 level is exceeded. === ''' Parameters (accuracy)''' === CO2: 0 -10000 ppm; ±50 ppm ±5% Temperature: -10°C- 60 °C; ±0.6 °C Relative humidity: 5 - 95 %; ± 3% or ± 5% === ''' Requirements''' === The meter starts measuring immediately after bein..." current
  • 09:3109:31, 28 July 2023 diff hist −1,625 Wöhler CDL 210'''Blanked the page current Tags: Blanking Visual edit: Switched
  • 09:2809:28, 28 July 2023 diff hist +1,625 N Wöhler CDL 210'''Created page with "=== ''' Short Description ''' === The Wöhler CDL210 allows continuous logging and subsequent downloading of data to PC through the NDIR sensor. An audible alarm is activated when the preset limit value of the CO2 level is exceeded. === ''' Parameters (accuracy)''' === CO2: 0 -10000 ppm; ±50 ppm ±5% Temperature: -10°C- 60 °C; ±0.6 °C Relative humidity: 5 - 95 %; ± 3% or ± 5% === ''' Requirements''' === The meter starts measuring immediately after bein..."
  • 08:1208:12, 28 July 2023 diff hist +915 N DioxcareCreated page with "=== ''' Short Description ''' === It is a portable CO2 meter that detects carbon dioxide in the environment in real time with high accuracy through the high precision NDIR sensor (Cubic CM1106). It is portable with a rechargeable battery and easy to carry. === ''' Parameters (accuracy)''' === CO2: 0 -10000 ppm; ±40 ppm ±3% Temperature: 0 - 50 °C; ±1 °C Relative humidity: 0 - 85 %; ± 2% === ''' Requirements''' === It incorporates an audible alarm to warn w..." current
  • 08:0908:09, 28 July 2023 diff hist +1,126 N Aranet 4Created page with "=== ''' Short Description ''' === Is an innovative battery-powered wireless sensor. Aranet4 uses the non-dispersive infrared (NDIR) sensor (Sensair Sunrise) to measure CO2 concentration. === ''' Parameters (accuracy)''' === CO2: 0 - 10000 ppm; ±30 ppm ±3% Temperature: 0 - 50 °C; ±0.3 °C Relative humidity: 0 - 85 %; ± 3 % === ''' Requirements''' === The device is portable, easy to install, easy to operate and lets yo..." current

27 July 2023

26 July 2023

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