Indoor air pollutants include particulate matter, biological pollutants and over 400 different chemical organic and inorganic compounds, whose concentrations are governed by several outdoor and indoor factors. Prevention of pollutant is not always technically feasible, so the implementation of cost-effective...
To keep a balance between maximising the amount of air, which is drawn in to reduce air pollutant concentrations generated from indoor sources and minimising the ingress of outdoor originating air pollutants such as PM, especially in urban areas, can be challenging (NASEM, 2022). However, proper...
The CADR number tells you how quickly the air purifier removes 100% of a given pollutant — like smoke, dust or pollen — from a cubic foot of air per minute. The higher the rating, the larger the space an air purifier can clean or the more times per hour it can change the air. ...
There were no significant relationships between mean weekly change in air pollutant levels and concurrent weekly changes in forced vital capacity (FVC), forced expiratory volume during the first second (FEV1), University of California San Diego Shortness of Breath Questionnaire (UCSD-SOBQ), or visua...
It is worth mentioning that ventilation does not directly affect occupant health, but the rate of ventilation affects indoor air pollutant concentrations that, in turn, modify the occupants’ health. Previous studies have reported that indoor radon and thoron concentrations are related to environmental ...
The fourth category of studies explored the impact of air pollution, energy consumption, CO2emissions, climate change, and other pollutant predictors on various health outcome indicators. While attempting to emphasize contemporaneous links between the predictors, most, if not all, have highlighted similar...
All equipment's for anthropometry and air pollutant measurement were calibrated to insure reli- ability on each day before measuring each child based on manufacturer instruction [77, 78]. Data processing and analysis The collected data were checked, coded, and entered into Epi-Data version 3.1 ...
Secondary pollutants:When pollutants in the air mix up in a chemical reaction, they form an even more dangerous chemical. Photochemical smog is an example of this and is a secondary pollutant. Why is air pollution such an important issue today?Click to find out ...
This brief review of upper respiratory tract changes after pollutant exposure should serve as a reminder that a complete clinical history must include questions designed to ascertain the patient's exposure history to both outdoor and indoor air pollutants. These exposures can have a major impact on...
The causes include rapid urbanization and population growth, with emissions from diverse pollutant sources—cookstoves, brick kilns, other industries, power plants, and transport. However, major gaps in our understanding remain due to the scarcity of air quality monitoring stations. 2. Persistent ...