Indoor Environmental Quality

The term indoor environmental air quality, also known as IAQ,  describes how the air in buildings and other structures affects the occupants' comfort, health, and well-being. It includes a range of elements, including temperature, humidity, ventilation, and the existence of contaminants. Sources of these substances include outside air, building materials, furniture, and cleaning supplies, HVAC system, and moisture within a building. These difficulties can be made worse by inadequate ventilation and poor indoor air circulation, which can cause discomfort as well as possible health issues like allergies, weariness, fatigue, and respiratory problems. To solve poor air quality, removing the source of the contaminants is needed and improving ventilation and then use of air cleaner will help reduce the effect of VOCs. The image to the right shows a diagram of how IAQ plays a factor in a residential setting. 

Acoustic design plays an important part in interior environments by controlling noise levels and sound quality to create comfortable and useful areas. Controlling sound reflections, absorption, and transmission inside a place is known as acoustic design. The right materials are essential to attaining acoustic balance. Sound absorption is a typical use for porous materials such as acoustic panels, fabric-covered wall panels, and foam tiles. These materials substantially reduce noise and reverberation. Upholstered furniture, carpets, and curtains are examples of soft furnishings that help reduce excessive echo and absorb sound.

The image above represents acoustic design by having panels be designed on walls and ceiling to reduce echoing and helping absorb sound within the interior space. 

Additionally, an important factor in partition design is the  wall studs that prevent sound waves from traveling directly between rooms. Careful adjustment of room volumes yields effective control over echo times. Designers choose smaller room capacities for areas where they want less reverberation times. On the other hand, bigger spaces are preferred to produce longer reverberation durations in environments such as performance halls. These guidelines emphasize how important it is to carefully consider space planning and partitioning in order to achieve ideal acoustics that meet the distinctive needs and desired sound qualities of various settings.

RESEARCH ON IAQ DURING COVID-19

Indoor air quality (IAQ) has been impacted by the COVID-19 pandemic in both positive and negatives ways. On the one hand, increased awareness of the virus's airborne transmission has led to a sharper focus on ventilation and IAQ improvement methods. By lowering the quantity of potentially dangerous particles, several buildings upgraded their air filtration systems, raised ventilation rates, and purchased air purifiers, all of which had a good impact on indoor air quality.

However, the Covid-19 pandemic has also brought new difficulties for indoor air quality. Buildings that had previously been well-ventilated and frequently maintained went through periods of inactivity due to lockdowns and restrictions. As fewer people used business areas, there was less ventilation, which allowed pollutants to build up. In addition, new sources of indoor pollutants were introduced by the increasing use of disinfectants and cleaning agents, even though they were necessary to stop the virus from spreading.


Comments

  1. Delia T.November 4, 2023 at 7:38 AM

    Izzy,
    Good blog. You summarized the content well and included helpful diagrams and pictures, especially the ones on IAQ. I appreciated your details on acoustic control such as room space, partition use, and wall stud placement. Your paragraph on IAQ and COVID was interesting because you touched on points I hadn't thought of like the lack of ventilation in unused buildings during the pandemic. Good job.

    ReplyDelete
  2. Professor VanderNoordaaNovember 4, 2023 at 10:44 AM

    Izzy,
    Very interesting Blog post this week. Your summary of IAQ was comprehensive. I appreciated your summary of acoustics and what considerations a acoustic designer makes. Your diagram of the room created by an acoustic designer was great.
    I thought your paragraph on the effects of Covid on our knowledge of IAQ was excellent. You described both positive and negative effects Covid had on our knowledge of IAQ. Well done.
    50/50 points

    ReplyDelete
  3. Eva SerratoNovember 4, 2023 at 12:49 PM

    Izzy,
    I really liked how you started your blog by explaining the basics of Indoor Environmental Quality. I enjoyed how you explained the benefits of focusing on IEQ when designing a building and what can happen to the interior of a building if you do not pay attention to IEQ. I liked the image you used when talking about acoustical sound control and I feel you explained this in a way that was clear and easy to understand.

    ReplyDelete
  4. Susan E. KirshNovember 4, 2023 at 4:29 PM

    Izzy,

    I really liked how you went very in depth with the acoustics of a space and the importance of controlling them. I feel that is typically something we don't always think about, especially when designing a large space. I also thought your research into the COVID 19 pandemic's effect on air quality was not only well written, but did a good job providing both positive and negative effects on our IAQ.

    ReplyDelete
  5. Jay CallentineNovember 8, 2023 at 5:17 PM

    Izzy,

    I really liked the thorough exploration of indoor environmental air quality (IAQ) and its huge impact on occupants' well-being. It was very informative to see your emphasis on addressing sources of contaminants and improving ventilation to mitigate health issues. The integration of visuals, like the diagram illustrating IAQ in a residential setting, adds a helpful layer to understanding the concept. Nice job!


    ReplyDelete

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