Why IAQ Is Important to Chicagoland

Why IAQ Is Important to Chicagoland

Indoor air quality (IAQ) is a crucial aspect of our health and well-being, and it has significant implications for residents of Chicago. With a population of nearly 2.7 million, Chicago is the third-largest city in the United States. Its residents are exposed to various indoor air pollutants that can adversely affect their health.

The first reason IAQ is necessary in Chicago is that it affects respiratory health. Poor IAQ can cause or worsen respiratory problems, including asthma, allergies, and chronic obstructive pulmonary disease (COPD). According to the American Lung Association, over 650,000 residents in the Chicago area are affected by asthma, making it one of the most prevalent chronic diseases in the city. Exposure to indoor air pollutants such as mold, dust mites, and pet dander can trigger asthma attacks and make breathing difficult. Additionally, poor IAQ can exacerbate other respiratory conditions, such as COPD, which affects over 100,000 residents in the Chicago area.

The second reason IAQ is necessary for Chicago homeowners is that it can affect our cardiovascular health. Indoor air pollutants such as nitrogen dioxide and particulate matter have been linked to an increased risk of heart disease and stroke. According to a study by the Environmental Protection Agency (EPA), exposure to high levels of fine particulate matter (PM2.5) can increase the risk of premature death from heart disease and stroke. In Chicago, where air pollution is a significant problem, poor IAQ can compound the effects of outdoor air pollution and pose a severe threat to residents’ cardiovascular health.

The third reason IAQ is necessary for Chicago is that it can affect our cognitive function and mental health. Research has shown that exposure to indoor air pollutants such as volatile organic compounds (VOCs) and carbon monoxide can impair cognitive function and increase the risk of depression and anxiety. In areas like Chicagoland, where many residents spend a significant amount of time indoors due to cold weather and long work hours, poor IAQ can significantly impact mental health and well-being.


Several factors contribute to poor IAQ in Chicago. The first is outdoor air pollution. Chicago has a long history of industrial activity, transportation, and energy production, all of which contribute to high outdoor air pollution levels. These pollutants can enter buildings through open windows and doors, cracks in walls and floors, and ventilation systems, and affect IAQ. In addition, the city’s aging infrastructure and many older buildings can contribute to poor IAQ, as these structures may have inadequate ventilation systems, mold problems, and other indoor air quality issues.

Another factor contributing to poor IAQ in Chicago is indoor sources of pollution. Many everyday household products, such as cleaning supplies, air fresheners, and personal care products, contain VOCs that can negatively affect IAQ. Activities such as cooking, smoking, and burning candles can also release pollutants such as nitrogen dioxide, carbon monoxide, and particulate matter into the air. In a densely populated city like Chicago, where buildings are often close together, these indoor sources of pollution can quickly accumulate and impact IAQ.

Finally, lifestyle factors can also affect IAQ in Chicago. For example, using HVAC systems and air purifiers can help improve IAQ. Additionally, lifestyle choices such as smoking or owning pets can negatively impact IAQ.

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