Case study of air quality in

Fan was found badly corroded and rusted. Ozone levels tend to rise on hot days with little air movement. The client had high level of concern about the reliability of the existing boiler and also advised Quality Air they were certain the boiler was significantly oversized for their operation.

Particulate Matter Airborne particulate matter PM is categorized into different size fractions. Shape Corporation The client had high level of concern about the reliability of the existing boiler and also advised Quality Air they were certain the boiler was significantly oversized for their operation.

As a result, pollutants generated from adjoining areas, such as neighboring warehouse, could be drawn into the space. Further, the office space was found to be at negative pressure in relation to the surrounding areas, including an adjoining warehouse.

Indoor Air Quality for Schools Case Studies

Based on the findings of the investigation, the investigators recommended that the outside air ventilation rate be increased to meet the recommended outside-air ventilation rate of 20 CFM per person, as specified in ASHRAE standards. A less glamorous aspect of life in the Southland, to be sure, but one the region is known for, and with good reason.

One employee commented that it seems that the air is bad inside this new building. During this portion of the investigation, particle counts were taken to assess the efficiency of the filtration systems in arresting respirable-sized particulate.

At the same time that the ventilation improvements were made, the air-handling equipment was cleaned and disinfected and the filtration system was upgraded to an acceptable system for this class of building. Readings were recorded for particles 1.

In addition, an exhaust system was also installed within the space. This is especially dangerous for people with heart disease who already have a reduced capacity for carrying oxygenated blood to the heart. The actual concentrations of these pollutants can also be amplified by other external factors including poor ventilation, humidity, and temperature.

This investigation therefore demonstrates the multi-disciplinary approach necessary to solve indoor air quality IAQ problems. A brief discussion for each air pollutant is as follows.

These modifications included the installation of new outside-air supply system designed to provide a minimum of 20 CFM per person of outside air. Find out more about indoor air pollution: A substantial improvement, certainly, but still quite a bit higher than the level of the federal health standard, currently set at 75ppb.

Small particles are by-products of combustion e. It also damages crops, trees and other vegetation and is the main component of smog.

Tests were conducted using a hand-held sampling pump and color detector tubes.

Outdoor Air Pollution Case Studies

The investigation of this building began with an initial survey of the office space to identify obvious building configurations that could influence air quality.

Emissions from industrial facilities and electric utilities, vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC.

Jones, General Manager noted that the employees have taken 3 times the sick leave as compared to the year before. Upon completion of the investigation, a comprehensive, confidential report was provided to the building manager. Short-term exposure to carbon monoxide CO can reduce the oxygen-carrying capacity of the blood, leading to shortness of breath, dizziness and even death.

Internal parking garages will require proper ventilation to overcome CO problem. Care should be taken in locating fresh air intakes. Conclusion This investigation employed the Phase I - Investigation procedure and as the project developed, drew upon the skills of a mechanical contractor, filtration service professional, and a test and balance firm.

If you live anywhere in the western or midwestern U. Microbial surface samples of the interior of the air-handling systems were taken for analysis in the laboratory, and an assessment was made as to the degree of contamination. Primary sources include fossil fuel combustion at power plants and other industrial facilities.

Carbon Dioxide Carbon dioxide CO2 is naturally present in the atmosphere and relatively harmless, however it is toxic to humans at higher concentrations. Appropriate recommendations were made based on the type and number of species identified.

The methods for bioaerosols include source removal, regular maintenance, humidity control, air cleaning and increased ventilation with filtration. Building pressure was tested using chemical smoke released by an aspirator bulb.IAQ Tools for Schools Case Studies IAQ School Facility Improvement Case Studies The following case studies are snapshots of school districts that have implemented the IAQ Tools for Schools guidance successfully — detailing how they have worked to achieve this success.

Air Pollution Case Study: Los Angeles. October 2nd, by Laura and with good reason.

While air quality has improved in the region since regulatory efforts really got underway in the ’s, no matter which way you look at it, it’s still not a pretty picture. Ozone “Smog” is a pretty imprecise term. The Phase I - IAQ investigation is designed to identify areas within the building systems that may be contributing to poor indoor air quality.

The investigation of this building began with an initial survey of the office space to identify obvious building configurations that could influence air quality.

report uses a case study methodology to examine the approaches taken by four states and one local government to improving and protecting indoor air quality. Purpose of the Report. The following indoor air quality case studies give real life examples of how customers use Aeroqual instruments to understand and improve the the indoor air quality we spend approximately 90% of.

Indoor Air Quality Case Studies

Case Studies of Air Pollution Monitoring in Urban Atmospheres: Los Angeles and Tehran Armin Sorooshian, E. Crosbie, T.

Indoor Environmental Air Quality: Case Studies

Shingler, N. Monfared (Chemical Engineering & Atmospheric Sciences, U. .

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Case study of air quality in
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