Legionnaires’ disease remains a serious public health issue in the United States, with notable outbreaks continuing in 2024. The disease, caused by waterborne Legionella bacteria, primarily affects individuals through inhalation of contaminated water droplets. According to the National Institutes of Health (NIH), Legionella bacteria can be found living in organic material attached to inner pipe surfaces in aging water infrastructure environments like cooling towers, plumbing systems and water features.

Air quality is a crucial aspect of public health and environmental sustainability. It impacts everything from respiratory health to climate change. With increasing awareness of pollution and its detrimental effects, it is essential to highlight the regions making significant strides in maintaining and improving air quality.

Mold growth is common in many homes, especially in areas with high humidity. Mold consists of microscopic fungi that grow in multicellular filaments called hyphae. It can thrive on any organic matter if moisture is present, and sometimes the humidity in the air supplies sufficient moisture.

Since 2000, reported cases of Legionnaires’ disease in the United States have grown by nearly nine times. It’s uncertain whether this is due to awareness and testing, an increase in the vulnerable population, more Legionella bacteria in the environment, or a combination of factors.

A study estimated that the actual number of Legionnaires’ disease may be between 1.8 – 2.7 times higher than reported.

Legionnaires’ disease is a serious type of pneumonia that is caused by Legionella bacteria. Outbreaks tend to spike in the summer and early fall but can occur at any time of the year.

The summer of 2023 has seen an uptick in people contracting Legionnaires’ disease, particularly in large metropolitan areas like Las Vegas and New York City.

How Legionnaires’ Disease Spreads

Legionella bacteria are naturally found in freshwater, like streams and lakes but can become a concern when it spreads to human-made water systems like hot tubs, water tanks, plumbing systems, and cooling towers.

When Legionella grows in water systems, it can spread in small droplets in the water. People can become ill when they breathe in droplets that are contaminated with Legionella bacteria. Since Legionnaires’ is a type of pneumonia, symptoms can vary, but shortness of breath, fatigue, fever, chills, headaches, and muscle aches are some of the most common.

New York City: 3 Confirmed Cases

Within the past 12 months, three guests who stayed at the InterContinental New York Barclay Hotel in Midtown have contracted Legionnaires’ disease. According to the New York City Department of Health, testing confirmed Legionella bacteria in the hotel’s water system.

As a result, the hotel released a statement that they were being proactive to ensure the water remains safe and guests may notice the water temperature is hotter than usual.

Las Vegas Hotel: 2 Confirmed Cases

Two guests developed Legionnaires’ disease after staying at the Orleans Hotel & Casino in Las Vegas in December 2022 and January 2023. The Health District had environmental testing done on hotel water samples, which confirmed the presence of Legionella bacteria.

The hotel promptly reached out to past guests to inform them of possible exposure and started remediation procedures along with a water management plan to prevent future exposure.

Grand Rapids, MN: 5 Confirmed Cases

The Minnesota Department of Health (MDH) is investigating to determine the source of a cluster of Legionnaires’ in Grand Rapids, Minnesota after five people contracted the disease. The five adults became sick and were hospitalized between the end of April and mid-July, all of whom live or spent time in Grand Rapids.

In 2022, Minnesota reported 109 cases of Legionnaires’ disease, although they were not associated with any outbreak or cluster, and were considered sporadic.

Legionella Identification Testing

Comprehensive testing is the first step in prevention. Our Legionella Detection Program is an inclusive system approach, performed using conventional culture methods to identify isolates of Legionella pneumophila or other Legionella species with high accuracy.

The Environmental Legionella Isolation Techniques Evaluation (ELITE) program is the only official Legionella testing certification program in the United States, created by the Centers for Disease Control and Prevention (CDC).

In 2009, SanAir Technologies Laboratory was accredited by the CDC ELITE program as an ELITE program member.

For Legionella Identification Testing, contact SanAir Technologies Laboratory by calling 888-895-1177 or reach out online. We can provide sample collection materials and instructions to complete Legionella testing and test your sample quickly in our state-of-the-art laboratory.

Indoor air quality refers to the quality and content of the air where we spend a majority of our time, like at home, work, school, office buildings, etc. Places where you spend a lot of hours indoors often impact your health. You can avoid sick people because they’re showing symptoms, so you know to stay away from them, but without testing the particles, you don’t exactly know what’s in the air around you because it’s not visible.

The air can potentially have many hazards. Asbestos, carbon monoxide, particulate matter, radon, mold, pesticides, sulfur dioxide, ozone, viruses, pet dander, and other invisible pollutants can hide anywhere. Not every individual will feel the health effects, but some are more vulnerable. Those with compromised immune systems or respiratory issues may be particularly sensitive to these compounds.

Here are five interesting indoor air quality facts and statistics everyone should know.

Statistic: Annually 3.8 million people die from indoor airborne pollution

According to the World Health Organization’s stats, around 3.8 million individuals die every year from exposure to toxins in the air. The world’s poorest countries suffer the most, as many lack environmental regulation that prevents developers from using hazardous building materials or securing construction sites. Many of these individuals also lack access to care, as you can treat many respiratory illnesses caused by environmental factors.

Fact: Smoking is one of the top causes of indoor air pollution

The WHO and CDC have issued many warnings about the effects of smoking cigarettes. Still, a 2020 study on common air pollutants found that cigarette smoke is a significant source of particulate matter. For example, the WHO explains that PM2.5, a fine particulate matter of 2.5 micrometers or less in diameter, is one of the most dangerous pollutants. The 2020 study found that smoking in an enclosed area increases the concentration of PM2.5 from 25 to 45 µg /m3.

Statistic: Mortality in women is 50% higher due to air pollutants than in males

All over the world, more women find themselves at home for more extended periods of time than men, therefore exposing themselves to poor indoor air quality at a higher rate. Women are also commonly in charge of tasks that are prone to increased air pollution — cooking on gas, kerosene, charcoal, and other stoves is found to increase the speed of premature death due to the particulate matter released, says The International Journal of Environmental Research and Public Health. Cleaning products and solutions are also made from various chemicals that impact human health.

Fact: Radon is the second leading cause of lung cancer

Radon is an invisible radioactive gas that emerges naturally from rocks, soil, and water. It can be brought into homes and office buildings through cracks or holes and builds up in the air. A CDC study found that radon is common enough that it is the second leading cause of lung cancer after smoking. It’s the number one environmental cause of the disease.

Fact: New York, and other big cities, emit more building air pollution than anywhere else

Those living in big cities in states including New York, Pennsylvania, Illinois, New Jersey, and California are at the most risk of indoor air pollution. Between the construction, building ages, and time spent indoors in large buildings where the air is circulated, these cities produce so much air pollution from fuel combustion that individuals should take extra care to have the air tested.

Air Quality Testing Nationwide

For 20 years, SanAir Technologies Laboratory has been trusted to test air, water, and soil samples for quality throughout the US. Call us at 1-888-895-1177 or contact us online to speak to an expert about your environmental testing needs. We’ll get all the materials you need overnight to ensure that your property is safe from environmental hazards.